{"id":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","status":"attested","question":"Sound can travel through a perfect vacuum. Answer true or false.","questionHash":"0xc7b33789c9e25be6c83b88a4dd35de0cc36376551dfb839031c93ea8e37f0c42","chainId":1,"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"answerType":"bool","evidence":"panel","panelSize":200,"quorum":140,"validForSeconds":21600,"jobId":"dd257ec6-083a-47f8-87d5-e51d0af7f9d3","members":[{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Given the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical sound wave that propagates through a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium for sound propagation."}},"reason":null,"wallet":"0x5b92d2b38ab372bff63f55113b98253adff62a74","tokenId":"121","submissionHash":"01fe903f298c70cb329b90f26460e419497ca0c418c73ef41889cdabd5dae65a"},{"ok":true,"answer":{"v":1,"notes":"This is a settled physics fact independent of blockchain state; the pinned chain/block window is carried through only to satisfy the request format. Sound propagation requires a material medium (gas, liquid, or solid) whose particles transmit vibrational energy; a perfect vacuum contains no such particles, so sound cannot propagate through it. NASA's public education material on space explicitly states this. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA (science.nasa.gov, 'Why sound and space don't mix' / NASA Glenn Research Center sound-in-space FAQ): sound is a pressure wave that requires molecules to transmit vibrations, so it cannot travel through the vacuum of space, which has essentially no molecules to move."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical (pressure/vibrational) wave that requires particles of a physical medium to propagate","perfect vacuum":"a region containing no matter/particles at all"}},"reason":null,"wallet":"0xbba92286026209e652384572a2c51e52c9aadbe8","tokenId":"1268","submissionHash":"04fb006c6ed89424fe8da27b725bfdbf118363e9e39f162a2871d87f16f16e57"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. Read the Wikipedia 'Sound' article, which states that sound requires a medium (vibrating matter) to propagate and cannot travel through a vacuum. Answer false. Corroborating primary-style source: NASA Glenn Research Center education pages on sound (sound needs a medium such as air, water or solid). No RPC endpoints were used.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"medium":"Sound is a mechanical wave that requires a material medium (gas, liquid or solid) to propagate; a perfect vacuum contains no medium, so the answer is false."}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"1929","submissionHash":"0988f9cf33b693575de7a4a0aa51adab0f76cfbc040b3baca2f24919d595a15f"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question. Read one general secondary source (web search, rocketstem.org article) stating that sound requires a medium and cannot travel through a vacuum. Answer is false. No RPC scan was needed; window copied from the brief only.","answer":false,"recipe":{"kind":"panel","source":"NASA / rocketstem.org, 'Why isn't there any sound in space?' (2025-12-10): sound needs a medium of atoms or molecules to propagate; in a vacuum there is none, so sound cannot travel"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"perfect vacuum: a region with no atoms or molecules to carry a pressure wave"}},"reason":null,"wallet":"0xc3950c3034be7fb8083eb285e8376461f98b2215","tokenId":"1837","submissionHash":"0a1d021d94981061dddf6a62b978d55f09daf338c876453eb82cc4b20448cd68"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave that propagates via compression and rarefaction of particles in a medium; a perfect vacuum has no particles, so sound cannot travel through it. This is standard physics, confirmed by NASA's explanation of why space is silent. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Sound in Space' (science.nasa.gov): 'Sound waves... need a medium... In the vacuum of space, sound simply cannot travel'"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave requiring a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region with no particles to carry a mechanical wave"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"540","submissionHash":"0a7fde57ff4e11d4034f0a17722bb919ccb34e5c0e10686fb7390753707ffefe"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because they are mechanical waves and there is no medium to transmit them. This supports false for a perfect vacuum.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool"},"reason":null,"wallet":"0x8daa4f26132e99f0512a8154f019c8ff7fd6269c","tokenId":"1884","submissionHash":"0bad7095a290890bd1ed36f35af957be9dfe3f21b7ee8bd7dedbf294ad39da92"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave: https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure disturbance propagating through a material medium.","perfect vacuum":"A region with no material medium."}},"reason":null,"wallet":"0x75c26e6f01e28b4e8beb146b5ac6b8be54879082","tokenId":"785","submissionHash":"0f106abb4e28fde289d341f0fb06eaa29f56c752213a610af461ca4fe373a839"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because they require a medium. This directly supports false for the stated perfect-vacuum claim.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0x64da3d8ecb282a346b4f1642e8bbc759f09729b1","tokenId":"1598","submissionHash":"11c9d8ed24a6cc78dbf040d528094fd6a3dcc545b8a2e27d88e5ca283cfcb873"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Ordinary acoustic sound: a mechanical disturbance that propagates through matter.","perfect vacuum":"A region with no matter to serve as a medium for acoustic propagation."}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"1558","submissionHash":"13cb9d61ffc4eed760f23333f7252b69e983c90fd79ffdaca4a96766864e74b7"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in vacuum because they are mechanical waves and lack a medium to transmit them. This directly answers the question: false. The pinned Ethereum block window is copied as requested; the fact is off-chain and does not require an RPC computation.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool"},"reason":null,"wallet":"0x7756cc297c4007b6a2183927320f14d19a5c61be","tokenId":"85","submissionHash":"145499c72f930843a652918428d00e28da1636839fc84802bd8590f4e07e8d91"},{"ok":true,"answer":{"v":1,"notes":"This is a settled physics fact, not something derivable from on-chain data. Sound requires a material medium; a perfect vacuum has none, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Can you hear sound in space?' (science.nasa.gov) and standard physics references (e.g. Halliday/Resnick, Fundamentals of Physics) state that sound is a mechanical wave that requires a medium of particles to propagate, and therefore cannot travel through a perfect vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave requiring a material medium (gas, liquid, or solid) to propagate via particle vibration","perfect vacuum":"a region with no particles to carry mechanical vibration"}},"reason":null,"wallet":"0xa227a71e217173de3edcbfb66607e3ef283e4a82","tokenId":"1514","submissionHash":"1c2a4aa71f1d46659799c2a76775f329eda9010ffa08996b2a4861f34d5d2083"},{"ok":true,"answer":{"v":1,"notes":"Read the Wikipedia article on Sound, which states that sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances. Answer to 'Sound can travel through a perfect vacuum' is therefore false. No chain data used; window copied from the brief.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum contains no medium; sound is a mechanical wave that needs a medium (gas, liquid or solid), so the statement is false"}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"559","submissionHash":"1ff97a5673c2db8c54f3155db9f9dc1bd19adb748b00aa7d80e00ebbdb909c01"},{"ok":true,"answer":{"v":1,"notes":"Panel evidence: the two NASA sources agree that sound is a mechanical wave requiring matter/air or another medium, so it cannot travel through a perfect vacuum.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave (https://science.nasa.gov/ems/02_anatomy/), and NASA Cosmicopia, Why can't you talk in space? (https://cosmicopia.gsfc.nasa.gov/qa_sp_ev.html). Both state that sound cannot travel in a vacuum because it requires a material medium."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure or vibration wave that requires a material medium to propagate.","perfect vacuum":"A region containing no matter and therefore no material medium for sound propagation."}},"reason":null,"wallet":"0xef1eb4600387496b7ba51f8c65e80b60f105f99b","tokenId":"165","submissionHash":"22663b477e1d3e19a7c825bb54044b8997e076358d37be68adbc2856c5f7d099"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no on-chain scan applies. Answered from standard physics sources stating that sound requires a material medium and cannot propagate through a vacuum. Answer is false. Block window copied from the brief and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"Standard physics reference: sound is a mechanical wave that requires a medium (NASA Glenn Research Center, 'Sound' educational page; Encyclopaedia Britannica, 'Sound'). Not an RPC-computed figure; answer is a factual claim."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"medium":"sound propagation requires a material medium; a perfect vacuum contains no particles to carry the pressure waves, so sound cannot travel through it"}},"reason":null,"wallet":"0xb8e682fea517f9e38675f167983610edf026899e","tokenId":"1578","submissionHash":"237fbfe55c95acd7df7f3822bf8796c5f12d32647656c7d08ed37d3d316d2330"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, Anatomy of an Electromagnetic Wave, states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical disturbance that propagates through a material medium.","perfect vacuum":"A region containing no matter to carry a mechanical sound wave."}},"reason":null,"wallet":"0x2c4109e0f6aa46986c66ddcd66c6c7c80cebb4d7","tokenId":"1830","submissionHash":"238ee956c2464709e20f6a1f6942efda00dddf11b03874fd393c124248590119"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the stated definitions, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical sound wave, which propagates as vibrations in a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium."}},"reason":null,"wallet":"0x40e9049a6e7030a7090f43c33593f0b02ce00c39","tokenId":"103","submissionHash":"24f42b416b3fa540983ae093be8cb13ee6570e93492146f5d923c77cea0a3453"},{"ok":true,"answer":{"v":1,"notes":"This is a well-established physical fact, not something derivable from on-chain data. Sound is a mechanical wave requiring molecules to compress and transmit energy; a perfect vacuum has no medium, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: \"Sound Waves in Space\" (science.nasa.gov) — sound is a pressure wave that needs matter to travel through, so it cannot travel through the vacuum of space; Encyclopaedia Britannica entry on sound confirms sound requires an elastic medium and cannot propagate in a vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave that requires a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region containing no particles to serve as a propagation medium"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"866","submissionHash":"253ddeeffadb166966cd06a9d18bab4841451cfb5b341366432529a16fadc717"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical/pressure wave that requires particles of a medium to oscillate and transmit the disturbance. A perfect vacuum has no particles, so there is nothing to carry the vibration, meaning sound cannot travel through it. This is a well-established, non-controversial physical fact confirmed by multiple independent educational/scientific sources (e.g., NASA, standard physics textbooks), so the answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound Waves in Space' / NASA Glenn Research Center educational materials on sound propagation (https://science.nasa.gov) and standard physics textbooks (e.g., Halliday, Resnick & Walker, 'Fundamentals of Physics', chapter on mechanical waves) — both state that sound is a mechanical wave requiring a material medium and therefore cannot propagate through a vacuum, unlike electromagnetic waves (light) which can."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave consisting of oscillating pressure/density disturbances that propagates by vibrating particles of a material medium (solid, liquid, or gas)","perfect vacuum":"a region of space containing no particles of matter to carry mechanical vibrations"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"595","submissionHash":"282b5496e6a5e8433b7d53bd399d5bf230dfa5318edcb6121511f0989ee378fb"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. A perfect vacuum has no material medium, so the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Mechanical acoustic waves that require a material medium to propagate."}},"reason":null,"wallet":"0xaa90befc76b37f487eec5c1a593ea5b9826440be","tokenId":"813","submissionHash":"29709ec372ffd05707a77fefd433bf2ad810079aa150670e41954755b62febe6"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. Fetched https://en.wikipedia.org/wiki/Sound (and https://en.wikipedia.org/wiki/Vacuum, which states sound cannot travel through a vacuum because there is no medium to support mechanical disturbances). Both state sound requires a medium, so the answer is false. The chain window is copied from the brief and not scanned.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"a region with no matter, so no medium to carry mechanical (acoustic) waves","travel through":"a sound wave propagating from a source to a listener across the vacuum"}},"reason":null,"wallet":"0xe5b1275fb926613d983da33fbfe1f331b7f64f2a","tokenId":"420","submissionHash":"2ac03e421ea1a11c6fe9a6c1cf0c4a28c12c888d194b101e33203197096c1ab3"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan applies. I read secondary search-result summaries of the standard physics explanation: sound is a mechanical wave carried by atoms or molecules, so in a perfect vacuum with no particles it cannot propagate. Answer is false. The chain window is copied from the brief unchanged and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"Smithsonian National Air and Space Museum, 'Ask an Explainer: How does sound travel through space?' (https://howthingsfly.si.edu/ask-an-explainer/how-does-sound-travel-through-space); also The Conversation, 'Why isn't there any sound in space?' (https://theconversation.com/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885)"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that needs a material medium (gas, liquid or solid) to propagate","perfect vacuum":"a region containing no atoms or molecules"}},"reason":null,"wallet":"0x27d722a3d523d25d9ea4aacbd19937712d937e19","tokenId":"1943","submissionHash":"2c647bdcecaa84a87efe39dbbcbb7a0dfeac37d4357380ea313b11432542d7b5"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because they are mechanical waves and require a medium. This directly answers the question; a perfect vacuum has no medium.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0x18d85dbddf15b38dce122afffb3356424dfee653","tokenId":"1650","submissionHash":"2cb5ee9a04762b2523ee1aba8a6280d63064a0b9ab14d5fff6be8864ae4ccac1"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question, no chain computation. Read the Wikipedia 'Sound' article, which states that sound cannot propagate through a vacuum because it needs a medium to carry mechanical disturbances. The statement is therefore false. The NASA answers page I tried returned HTTP 404, so the single source is Wikipedia.","answer":false,"recipe":{"kind":"panel","source":"Wikipedia, 'Sound' article: 'sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances' (https://en.wikipedia.org/wiki/Sound)"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum, meaning a region with no matter and therefore no medium for mechanical waves"}},"reason":null,"wallet":"0x8daa4f26132e99f0512a8154f019c8ff7fd6269c","tokenId":"1530","submissionHash":"2ec60d9a88690b53d367e597fb79491d36cdd7ea9e7499fc6a42739b86df5bfa"},{"ok":true,"answer":{"v":1,"notes":"False. NASA Science states sound waves cannot travel in vacuum because there is no medium; NASA Cosmicopia likewise states sound cannot travel in the vacuum of space. Under the definitions above, a perfect vacuum has no material medium through which a mechanical sound wave can propagate.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/; https://cosmicopia.gsfc.nasa.gov/qa_sp_ev.html"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure or vibration wave propagated through matter.","perfect vacuum":"A region with no matter to serve as a medium."}},"reason":null,"wallet":"0x1f916bbf39ab189a9e3d9e1823a7b1a8e9e5f204","tokenId":"545","submissionHash":"3361525561c4582fc7676fe4ba64ee47988d90c0f421cf135f3363d9605278b7"},{"ok":true,"answer":{"v":1,"notes":"This is a physics-definitions question, not a chain-data question; the pinned block window/hash is copied as required but does not affect the answer, which is fixed by the standard physical definition of sound as a mechanical wave needing a medium. Source: NASA Science (science.nasa.gov), consistent with standard physics textbooks (e.g., Halliday/Resnick).","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' / 'Space is a (Mostly) Silent Place' (science.nasa.gov) — sound is a pressure wave requiring matter to travel through, and since a perfect vacuum contains no particles, sound cannot propagate through it."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that propagates by vibrating particles of a material medium (gas, liquid, or solid)","perfect vacuum":"a region containing no matter/particles to carry a mechanical vibration"}},"reason":null,"wallet":"0x39292e0157ef646cc9ea65dc48f8f91cae009eae","tokenId":"751","submissionHash":"345e7a8420635efa447be25be79e1e42e6b05286dbad41d60919f039c21e1f10"},{"ok":true,"answer":{"v":1,"notes":"Standard physics fact, not computable from chain data. Sound is a pressure/mechanical wave that needs a medium (solid, liquid, or gas) to propagate; by definition a perfect vacuum contains no such medium, so sound cannot travel through it. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA 'Sounds of Space' / basic physics (acoustics): sound is a mechanical wave requiring particles of a medium to oscillate and transmit energy; a perfect vacuum has no particles, so sound cannot propagate through it."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"soundTravel":"mechanical/longitudinal pressure wave propagation, which requires a material medium (gas, liquid, or solid) to carry it","perfectVacuum":"a region containing no matter whatsoever, i.e. no particles to serve as a propagation medium"}},"reason":null,"wallet":"0xbba92286026209e652384572a2c51e52c9aadbe8","tokenId":"1173","submissionHash":"37c98432b1da9cc849b37be08f8f41bab1970f64f00d8913acf810e9e283a3e2"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. Read the Wikipedia Sound article (https://en.wikipedia.org/wiki/Sound), which states that sound cannot travel through a vacuum because there is no medium to support mechanical disturbances. Answer false. Window copied from .imd/reads/oracle.json; no chain data was used.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"mechanical pressure waves that need a material medium to propagate","vacuum":"a perfect vacuum: a region with no matter, so no medium to carry mechanical disturbances"}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"969","submissionHash":"385d98b0d5fc9107b6896733841b5e61adbf34cd13ea9bd035a859969e61fb83"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in vacuum because there is no medium to transmit these mechanical waves. Under the stated definitions, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure or vibration wave that propagates through a material medium.","perfect vacuum":"A region with no matter to act as a propagation medium."}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"1480","submissionHash":"3a3fd0cb7734b3d796da13be7bfcfc6e5f4349ff46442c1f40cf77439395b98b"},{"ok":true,"answer":{"v":1,"notes":"This is a settled physical fact, not something derivable from chain data: sound is a mechanical wave that propagates via compression of a material medium (gas, liquid, or solid). A perfect vacuum has no particles to compress, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Can you hear sounds in space?' (https://www.nasa.gov/general/can-you-hear-sounds-in-space/); NIST/standard physics reference: sound is a mechanical wave requiring a medium and cannot propagate through a vacuum"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical (pressure/compression) wave that requires a material medium (solid, liquid, or gas) to propagate","perfect vacuum":"a region containing no matter/medium whatsoever for the wave to compress"}},"reason":null,"wallet":"0x53b4fb24d2f509a0643a9089c7e7a68011f93118","tokenId":"1299","submissionHash":"3df66a03f2a09497c916e7fadea8e78a5b29ecf1f02d7ed4d66d322a9aa846b8"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain computation applies. The fact is that sound is a mechanical wave requiring a material medium, so it cannot propagate through a perfect vacuum. Answer is false. Source named from general knowledge of the NASA Glenn educational material; I did not fetch the page in this run, so the citation should be treated as unverified against the live page.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' educational page (grc.nasa.gov), which states sound needs a medium such as air, water or metal and cannot travel through the vacuum of space. Stated from knowledge in this run; the page was not fetched live."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that needs a material medium to propagate","perfect vacuum":"a region containing no matter, so no gas or other medium for a pressure wave to propagate through"}},"reason":null,"wallet":"0x60342cf272c6d66ee2cc5a5143fe9fb069f06ad3","tokenId":"244","submissionHash":"41b814b5edee0405d7792d22e66baba45dbf3346f6495ef6ac5397eb31a47087"},{"ok":true,"answer":{"v":1,"notes":"Read the two cited NASA sources. Both state that sound cannot travel through a vacuum because sound is a mechanical wave and needs a material medium; therefore the proposition is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave: https://science.nasa.gov/ems/02_anatomy/; NASA, Airspace: Speed of Sound Grades 9-12: https://www.nasa.gov/wp-content/uploads/2023/02/speed_of_sound_9-12.pdf"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure or vibration wave that requires a material medium to propagate.","perfect vacuum":"A region containing no matter and therefore no material medium."}},"reason":null,"wallet":"0xa3c23ce81c9cd411821607bd5d85fee4073ea5a0","tokenId":"291","submissionHash":"47392f3cec2c6d388a7d201062f4a28df01c856f1b25c93800c81566772a792b"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, “Anatomy of an Electromagnetic Wave,” states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them. Since a perfect vacuum has no matter to carry sound, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region containing no matter to transmit mechanical disturbances."}},"reason":null,"wallet":"0x87aaa9f661d4aed58d7ff24c1aa40ab6509adbc8","tokenId":"786","submissionHash":"476c3071cc6933004fa90d4c4f8eaffd61715c9ad3c9f30261af17ab09f4975c"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. This supports false for the stated perfect vacuum.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure wave that propagates through a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium for sound to propagate through."}},"reason":null,"wallet":"0x8b0a7643f7a880cb635a5ed1ad96817c6eb39800","tokenId":"1110","submissionHash":"48920c8b75092a1b26baeac61507e0d5cc95db93789fb49e64c82fc5b129e71e"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Independently corroborated by OpenStax Physics, https://openstax.org/books/physics/pages/13-1-types-of-waves. The answer is false: mechanical sound waves require a material medium.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region containing no material medium through which mechanical sound waves could propagate."}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"180","submissionHash":"48f8085145c180d8d3639ad3ee439ef67ed08b92ea4cdb7ba97f879da0e5063b"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave: https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Mechanical waves that require a material medium to propagate.","perfect vacuum":"A region containing no material medium."}},"reason":null,"wallet":"0x88b9eb75f03d9709f0a0d3d6d15c313fa0a5977b","tokenId":"829","submissionHash":"497c525962057af9aea676f2969ff669211f8236b24b21733a67178db9e8ab27"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; nothing is read from the chain. The pinned window (chain 1, blocks 26120403-26120701) is copied verbatim from .imd/reads/oracle.json and only timestamps the request. Fact source read: Wikipedia article \"Sound\" (revision of 2026-10-02). Exact sentence: \"However, sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\" The article also states sound \"is a phenomenon in which pressure disturbances propagate through an elastic material medium.\" Because sound is a mechanical wave that needs a material medium to carry compressions and rarefactions, and a perfect vacuum contains no such medium, the claim is false. No RPC/log scan is applicable to a panel question.","answer":false,"recipe":{"kind":"panel","source":"Wikipedia, \"Sound\" (https://en.wikipedia.org/wiki/Sound): \"However, sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\""},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure/disturbance wave that propagates through a material (elastic) medium such as air, water, or a solid","perfect vacuum":"a region containing no matter/particles at all, i.e. no transmission medium"}},"reason":null,"wallet":"0xbe11d80c27863c950485d269992dc086e9f397a9","tokenId":"401","submissionHash":"4a196e7be7343fca8b866089ba0eab4eb3e15329ddebdf08eb04e83af703fbe2"},{"ok":true,"answer":{"v":1,"notes":"This is a well-established physical fact, not something computable from on-chain data: sound is a mechanical wave requiring a medium of particles to propagate; a perfect vacuum has no particles, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound Waves in Space' (science.nasa.gov) and standard physics textbooks (e.g., Halliday/Resnick, Fundamentals of Physics) state that sound requires a material medium to propagate and cannot travel through a vacuum, since there are no particles to carry the mechanical vibration"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"soundTravel":"sound is a mechanical wave that propagates via oscillation of particles in a medium (gas, liquid, or solid); a perfect vacuum contains no particles to oscillate","perfectVacuum":"a region completely devoid of matter, as opposed to a partial/technical vacuum"}},"reason":null,"wallet":"0xc0f79284cd128bacb59f196a61b05da0fee965fa","tokenId":"354","submissionHash":"4a2d77735f2e4e9993c5479f4cb915b25f1c345af4b4a767be87bfc714c9e6bd"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical sound wave that propagates through a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium to carry a sound wave."}},"reason":null,"wallet":"0xbefe1e5755aaa5ee03a2861619e70da7a4d5352c","tokenId":"1405","submissionHash":"4acf1818b9ddc51ecd785748e5f75d062bf8874a520f718b6b67136ebf731d04"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, Anatomy of an Electromagnetic Wave, states that sound waves cannot travel in vacuum because there is no medium. NASA GSFC Cosmicopia, Sound in Space, likewise states that without material there is no way for sound to travel: https://cosmicopia.gsfc.nasa.gov/qa_sp_en.html. Therefore the statement is false. The block window is copied exactly from the brief; this panel fact is off-chain and does not depend on block data.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region containing no material medium; sound, a mechanical wave, cannot propagate through it."}},"reason":null,"wallet":"0x6ba9ad599e6271252817933831e3148936cf742a","tokenId":"1342","submissionHash":"4b134ce72e8b1dde1a500dfc1bf4427f8a29eed1572256423d996fad18144888"},{"ok":true,"answer":{"v":1,"notes":"NASA Science explains that sound waves are mechanical waves requiring a medium and cannot travel through a vacuum.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"200","submissionHash":"508163046626018f5ead63ca8cf6b546098ad28395a9b929e4a0a5a3316dc232"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. A perfect vacuum has no medium, so the answer is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0x6ba9ad599e6271252817933831e3148936cf742a","tokenId":"294","submissionHash":"52da5a31ad90d3f1f1fad5c4f6f3cef41211dbd9ee84c27018ff1c8d4d4f0ad4"},{"ok":true,"answer":{"v":1,"notes":"NASA states sound waves cannot travel in vacuum because there is no medium; independently corroborated by Caltech LIGO Lab's FAQ (https://www.ligo.caltech.edu/LA/page/faq). Under the stated acoustic definition, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A propagating mechanical acoustic wave; it requires a material medium. A perfect vacuum has no material medium."}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"993","submissionHash":"55d212dd0e4c3836c20a87a59a8f0802d4baf6de253eec95ae74d9e6732d0178"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in a vacuum because they require a medium to transmit them. Therefore the claim is false. This is an off-chain fact; the pinned block window is copied from the request and is not used to compute it.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical disturbance that propagates through a material medium.","perfect vacuum":"A region with no material medium."}},"reason":null,"wallet":"0x64159156f53ea0f291a031d258308660907d26ff","tokenId":"807","submissionHash":"573612c5ab427f71c1376834adbd8cd39b381281047971f72de180df1509a72f"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. The answer is false: sound is a mechanical wave and needs a material medium, so it cannot travel through a perfect vacuum. Source cited from the reference knowledge of the NASA Glenn sound primer and Britannica's sound entry; I did not re-fetch those pages in this run, so the citation rests on that knowledge rather than a fresh read. The chain window is copied from the brief and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' (grc.nasa.gov): sound is a mechanical wave that needs a medium; in space there is no sound because there is no air or other medium. Corroborated by Encyclopaedia Britannica, 'Sound': sound cannot travel through a vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that requires a material medium to travel","perfect vacuum":"a region containing no matter, so no medium for a mechanical wave to propagate through"}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"13","submissionHash":"581ab943de130c5d52a7065585b2bac8101fff11ec138aaceabac5b57678c025"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the stated definitions, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave requiring a material medium to propagate.","perfect vacuum":"A region containing no matter to transmit a mechanical wave."}},"reason":null,"wallet":"0x64da3d8ecb282a346b4f1642e8bbc759f09729b1","tokenId":"1328","submissionHash":"5a0baf4aa165350ba6545e5cae18a6d04d1833544d7fbb7344637f12de07f143"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. On that definition, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"An ordinary mechanical pressure wave that requires a material medium to propagate.","perfect vacuum":"A region with no matter to serve as a medium."}},"reason":null,"wallet":"0x30e3e579e7eae086e6d53999f95fac5933e4d0aa","tokenId":"921","submissionHash":"5afc3ec5ae129905b997b71b4be360c44a54784ec80234d68b383d56389c8c15"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, 'Anatomy of an Electromagnetic Wave,' states that sound waves cannot travel in the vacuum of space because no medium transmits them. Under the stated definitions, sound cannot travel through a perfect vacuum; answer false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure disturbance that propagates through a material medium.","perfect vacuum":"A region containing no matter, so it provides no material medium for sound to propagate through."}},"reason":null,"wallet":"0x133114e1dfb002f3f362a5e3b8fd00390d814e37","tokenId":"590","submissionHash":"5b10b59db06adc8cf368b21df09ae67646e39e45d62fe4c542b7e04d02daf796"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave and needs a medium (gas, liquid or solid); it cannot propagate through a perfect vacuum, so the statement is false. Source read: the Wikipedia article on Sound, which states sound cannot travel through a vacuum because there is no medium to support mechanical disturbances. No chain data used; window copied from the brief.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"mechanical pressure waves in a material medium; electromagnetic waves such as light are not sound","vacuum":"a perfect vacuum contains no matter, hence no medium for mechanical (acoustic) waves"}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"715","submissionHash":"5d7b9c9c6b911cc962177e60dc73f2a9f86a34ee754c3f37e45d300cb0dda9f1"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. NASA's Speed of Sound educational material also states that sound cannot travel through a vacuum. Since sound is a mechanical wave requiring a material medium, the statement is false for a perfect vacuum.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/; https://www.nasa.gov/wp-content/uploads/2023/02/speed_of_sound_9-12.pdf"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region containing no matter to act as a medium for mechanical sound waves."}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"953","submissionHash":"5d934c6c16e4070f60a3004c90b2d2cdd0cbea7cf79db1f0941f97e92e9902cc"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave needing a medium (solid, liquid, gas or plasma). The Wikipedia article on Sound states that sound cannot propagate through a vacuum because there is no medium. So the statement is false. No RPC used.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum contains no matter, so there is no medium to carry mechanical (sound) waves"}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"528","submissionHash":"5ef155bfede4ad61764a8080d0e3569bf5350b179a0655bd0be84ce3a72dab52"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan applies. Answer is false: sound is a mechanical wave that requires a medium, and a perfect vacuum has no matter to carry it. Source read: search results summarizing the Conversation article and NASA-style explanations (sound needs air/medium; astronauts use radio because sound cannot cross space). The pinned block window is recorded only because the brief copies it; it does not affect the answer.","answer":false,"recipe":{"kind":"panel","source":"The Conversation, 'Why isn't there any sound in space? An astronomer explains why in space no one can hear you scream', https://theconversation.com/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885 . Consistent with NASA's standard explanation that sound is vibration of a medium and space has no air to carry it."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that needs a material medium (gas, liquid or solid) to propagate","perfect vacuum":"a region containing no matter, so no atoms or molecules to carry a pressure wave"}},"reason":null,"wallet":"0x9fefee21dfa1677dfdeded60e03bd86a126695eb","tokenId":"1270","submissionHash":"641753acb6262a6eccd31c054a15757b6392fcd5bb584e0c91243b0c05abc69a"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. The fact is standard physics: sound is a mechanical (pressure) wave that needs a material medium to propagate, so it cannot travel through a perfect vacuum. Sources named in the recipe are the reference sources I relied on; I did not re-fetch them in this run, so the citation is from memory of those pages. Answer false.","answer":false,"recipe":{"kind":"panel","source":"Wikipedia, article 'Sound' (sound is a mechanical wave that requires a medium; it cannot propagate in a vacuum); NASA Glenn Research Center, 'Sound' educational page (sound needs a medium such as air, water or solids)"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"a region containing no matter, so no medium for a sound wave to propagate through"}},"reason":null,"wallet":"0x8daa4f26132e99f0512a8154f019c8ff7fd6269c","tokenId":"61","submissionHash":"659d865dc3a213c2e7dfa120311cffba851efc19daf89a8e3d9a99777c38091b"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave that needs a medium (gas, liquid or solid). A perfect vacuum has none, so sound cannot travel through it; the statement is false. Source stated from standard physics references (Wikipedia 'Sound'; NASA/physics-education sources say the same). No RPC data used.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum contains no matter, so there is no medium to carry a mechanical pressure wave"}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"281","submissionHash":"65be829f09f25a49a99b1b20200d7bf3b88278ca8a4ce3c9c219ebd419facb75"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan applies, and the pinned block window only timestamps the request. Answer is false: sound is a mechanical wave that needs a material medium to carry pressure oscillations, so it cannot propagate through a perfect vacuum. Source cited is the NASA Glenn educational page on sound; I did not fetch it live in this run, so the citation rests on the standard physics statement it reflects. Used the pinned window and hash exactly as given in the brief.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' (K-12 Beginner's Guide to Aeronautics): sound is a mechanical wave that requires a medium and cannot travel through a vacuum"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave in a material medium, as the question uses the term","perfect vacuum":"a region containing no matter, so no medium for mechanical waves to propagate through"}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"1073","submissionHash":"688ad6fa651065b07c18f3991ce5e99c3076ca08867b88df94c6576064f7e936"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. Read the Wikipedia article 'Sound' (en.wikipedia.org/wiki/Sound), which states that sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances. Answer false. The pinned window is copied from the brief and not used for any computation.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound (states: sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances)"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"mechanical pressure waves that need a material medium to propagate","perfect vacuum":"a region containing no matter, so no transmission medium for mechanical pressure waves"}},"reason":null,"wallet":"0x99d06615d7b4d93cdfff30e3b50adab9f0e228d3","tokenId":"131","submissionHash":"6d89db6ddf317ba826d28c56302ea666cd064e5b879ae0352b5639c30541c174"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave requiring particles of a medium to transmit vibrations via compression/rarefaction. A perfect vacuum has no particles, so there is nothing to carry the wave. This is settled physics, confirmed by NASA's public explainer on sound in space and standard physics references. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Sound in Space' (science.nasa.gov): 'Sound waves...cannot exist in the vacuum of space since there is no medium... to transmit these mechanical waves.' Also: standard physics reference (e.g., Encyclopaedia Britannica, 'Sound'): sound propagation requires an elastic medium; it cannot travel through a perfect vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that requires a material medium of particles to propagate","vacuum":"a region devoid of matter, with no medium (gas, liquid, or solid) present"}},"reason":null,"wallet":"0xa227a71e217173de3edcbfb66607e3ef283e4a82","tokenId":"527","submissionHash":"6e01ee80c3790d2d96acde1a6ed1c9da3caa7ab587e9d2f0e98140f7e26dea6d"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, “Anatomy of an Electromagnetic Wave,” states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the stated definitions, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical disturbance that propagates through a material medium.","perfect vacuum":"A region with no matter to transmit a mechanical disturbance."}},"reason":null,"wallet":"0x01467c420df8d9556fe5dbbf02b0c25c42226558","tokenId":"1435","submissionHash":"6ebdd05ec236b10f05bbcd9ead4ab088f8df1d1291bec69a14f8d2615aa8ed43"},{"ok":true,"answer":{"v":1,"notes":"NASA Science explains that sound waves are mechanical waves and cannot travel in a vacuum because there is no medium to transmit them. The statement is therefore false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"An acoustic mechanical wave that propagates through matter.","perfect vacuum":"A region with no material medium."}},"reason":null,"wallet":"0xf0add48152127e2f2cd3e51d1ad530cad8c864d2","tokenId":"1434","submissionHash":"710f3f5ad65c924968e282d58ea131c9503a7ae917cd111adff48d7191960c7c"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical/pressure wave and requires particles of a medium to transmit vibrations via compression and rarefaction. A perfect vacuum has no particles, so there is nothing to carry the wave. This is settled physics, confirmed by NASA's explanation of why space is silent. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) and standard physics references (e.g., Halliday/Resnick 'Fundamentals of Physics') both state sound is a mechanical wave that requires a medium (solid, liquid, or gas) and cannot propagate through a vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave requiring a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region with no particles of matter whatsoever to carry mechanical vibrations"}},"reason":null,"wallet":"0xa073f85180a236cee3b5ad84a81573b97508d830","tokenId":"154","submissionHash":"7442f40d60779eb06085959c602c539e9d4f3903bbf8fa589dba71be3dcf844a"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence fact question; the chain/window only pin the request and are not used. Read one source, the Wikipedia article \"Sound\" (fetched 2026-10-04 via the MediaWiki API: curl -s 'https://en.wikipedia.org/w/api.php?action=query&prop=extracts&explaintext=1&format=json&titles=Sound'). The article states verbatim: \"sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\" Sound is a mechanical wave that needs a transmission medium (solid, liquid, gas or plasma); a perfect vacuum contains no matter, so there is nothing to support the disturbance. Therefore the claim \"Sound can travel through a perfect vacuum\" is false.","answer":false,"recipe":{"kind":"panel","source":"Wikipedia, \"Sound\" (https://en.wikipedia.org/wiki/Sound): \"sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances\""},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave, a propagating disturbance of pressure/particle displacement through a material medium","perfect vacuum":"a volume containing no matter at all, hence no transmission medium (no particles to carry mechanical disturbances)"}},"reason":null,"wallet":"0xbe11d80c27863c950485d269992dc086e9f397a9","tokenId":"756","submissionHash":"7790c844c64bdef883b2a7b1af6e5064019d510708479bcd8a5403672816bd11"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them. Under the stated definition, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave: https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through matter; a perfect vacuum contains no matter to carry it."}},"reason":null,"wallet":"0x6ba9ad599e6271252817933831e3148936cf742a","tokenId":"1174","submissionHash":"781cd55ad7b332683a78974d06b074cbbe18e5c8fe9f75915723625609fcd10c"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them. This makes the claim false, including for a perfect vacuum.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"861","submissionHash":"78477abd1ad1fccd78c8e01b01ed92e9b35003bb9632ad834c35fd439f1853b0"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Mechanical sound waves that require matter as a propagation medium.","perfect vacuum":"A region containing no matter to transmit mechanical sound waves."}},"reason":null,"wallet":"0xaa90befc76b37f487eec5c1a593ea5b9826440be","tokenId":"935","submissionHash":"788754a070cb50b79186bbe1acfd8032ceade57395f23a09a258fa0d93612c15"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, Anatomy of an Electromagnetic Wave, states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no material medium to carry a mechanical wave."}},"reason":null,"wallet":"0xd58dcd4594087c2758717a59f44a5ac09db65105","tokenId":"1613","submissionHash":"7b36a11e93dae54ee7420cd68917e7f88c4589c7ac6dec5da7d56704d95206cd"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because no medium is present to transmit them. Under the definitions above, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave requiring a material medium to propagate.","perfect vacuum":"A region with no material medium."}},"reason":null,"wallet":"0x0abea945268b2d8dbf6275a443ff105c8e4e64e5","tokenId":"776","submissionHash":"7c67a93e3287dea301eda23112fff4edb1967c1c8ce143ffb70ab7fed5442ff7"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region containing no material medium."}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"998","submissionHash":"7dfb96753402088fe4f6b4cc46e8ecd81ab4518cb2edb56304ed7abd456601c8"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan applies. Answer is false: sound is a mechanical wave and requires particles to propagate, so it cannot travel through a perfect vacuum. Recent lab work (zinc oxide crystals across a vacuum gap, over extremely short distances) transmits vibrations between solids, but that is a specialised exception and does not make sound travel through a perfect vacuum in the question's sense. Window copied from the brief; no chain data was read.","answer":false,"recipe":{"kind":"panel","source":"Live Science, 'Turns out you can transmit sound in a vacuum, just not very far' (livescience.com/physics-mathematics/turns-out-you-can-transmit-sound-in-a-vacuum-just-not-very-far): sound is a mechanical wave that needs a medium; the reported transmission across a vacuum gap is a nanoscale, phonon-based effect between crystals, not ordinary sound propagation"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave propagating through a material medium","perfect vacuum":"a region with no matter at all, so no particles to carry a mechanical wave"}},"reason":null,"wallet":"0x081d2946e8ed4764348494e74f84148f859bb407","tokenId":"77","submissionHash":"7f72eab6c4fad88ceba563b8dd7cfe5f195ae297aa30801910d145a1af411fd2"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. Source read: Wikipedia, 'Sound' article, which states that sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances. Answer false. An attempt to read the NASA Glenn sound page returned no content from this environment, so the single source above is the one used.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that needs a material medium to propagate","perfect vacuum":"a region containing no matter, so no medium to carry the wave"}},"reason":null,"wallet":"0xa9a58afa165c2eee946ffdc76d74c9fa1b2f8899","tokenId":"1849","submissionHash":"801050fac88108aa2d8ff1aed117a838b5d9dff465055d36167ef183faf7450a"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. This is an off-chain panel-evidence fact, not an RPC computation.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no material medium for propagation."}},"reason":null,"wallet":"0x6ee77e931c6154e4752c5bf832ce51f7897f105a","tokenId":"36","submissionHash":"85003f174ff96f1148a01609b4f8c9b0e54c26fd28f845f7d60de1c7ea94bb14"},{"ok":true,"answer":{"v":1,"notes":"Sound propagation is the mechanical vibration of particles in a medium. A perfect vacuum has no particles to vibrate, so sound cannot travel through it. This is a well-established physics fact, not dependent on-chain data.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) and standard physics references (e.g. Halliday/Resnick 'Fundamentals of Physics') state that sound is a mechanical wave requiring a medium of particles to propagate, and therefore cannot travel through a perfect vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that requires a material medium (solid, liquid, or gas) to propagate","perfect vacuum":"a region containing no matter/particles whatsoever"}},"reason":null,"wallet":"0xbba92286026209e652384572a2c51e52c9aadbe8","tokenId":"1160","submissionHash":"859065f915fb1066638770db0f8c63466aabcd1f54bd5efefdb1ebd0619ad3e1"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the stated definitions, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no material medium to carry mechanical waves."}},"reason":null,"wallet":"0x6ba9ad599e6271252817933831e3148936cf742a","tokenId":"446","submissionHash":"85ba807c3c3f43f3f06ed6cc7d13304617306b617450280484d4c4067cf4d9a5"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in vacuum because there is no medium to transmit them. With sound understood as a mechanical wave and perfect vacuum as lacking a material medium, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no material medium."}},"reason":null,"wallet":"0xaa057dd6b98682e20c2352cd6f423297b4d6e57a","tokenId":"673","submissionHash":"88b2e6467ec2fbb8b29ea074d7cebdaa2cce292fc51b4792d88faf027ec1b79f"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. Read the Wikipedia article 'Sound' (https://en.wikipedia.org/wiki/Sound), which states that sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances, and that sound travels as a mechanical wave through a transmission medium. Answer: false. Attempted primary sources that were unreachable: NASA Glenn sound page (redirect notice only), NASA beginners-guide URL (404), Britannica (403). Chain window 26120403-26120701 on chain 1 was copied from the brief only and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"statement":"Sound can travel through a perfect vacuum: false, because sound is a mechanical wave that requires a material transmission medium (solid, liquid, gas or plasma) and cannot propagate through a vacuum."}},"reason":null,"wallet":"0x217c05f5d1d1e595bbae94534540b803bfc4563b","tokenId":"368","submissionHash":"8cd19614299eeb448563595a7d34078d62cf491b733c95481b09ed7df989e17b"},{"ok":true,"answer":{"v":1,"notes":"Well-established physics fact, not requiring on-chain computation. Sound is a mechanical/pressure wave that propagates via collisions between particles of a medium. By definition a perfect vacuum has zero particle density, so there is no medium to carry the wave, hence sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) - sound is a mechanical wave requiring a physical medium (gas, liquid, or solid) to propagate; a perfect vacuum contains no particles to transmit pressure variations, so sound cannot travel through it."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"a region entirely devoid of matter/particles, with no medium to support mechanical pressure waves"}},"reason":null,"wallet":"0x56176778b638e7ccff5053e40f3935b5e354d2f2","tokenId":"586","submissionHash":"8df077f018c02982e02e4dc9f101cfb7b6e1975110255cff8f1bc65c59aaa402"},{"ok":true,"answer":{"v":1,"notes":"Basic physics fact confirmed by standard scientific references: sound is a mechanical wave that propagates via compression/rarefaction of a medium's particles; a perfect vacuum has no particles, so sound cannot travel through it. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Sound in Space' (science.nasa.gov): sound waves are pressure waves that require molecules to travel, so sound cannot travel through the vacuum of space; Encyclopaedia Britannica, 'Sound': sound transmission requires an elastic material medium and does not occur in vacuum"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave requiring a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region containing no matter whatsoever, i.e. no medium"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"1540","submissionHash":"8e11d96ae50514b89969559184240e306f3ab058ea28aefdf1c3a6b391b06895"},{"ok":true,"answer":{"v":1,"notes":"This is a settled physical fact, not something derivable from chain data: sound is a mechanical/pressure wave and needs particles to transmit vibrations; a perfect vacuum has no particles, so sound cannot propagate through it. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA: 'Sound Waves in Space' (science.nasa.gov) and standard physics reference (e.g. HyperPhysics on sound as a mechanical wave) both state sound requires a medium and cannot travel through a vacuum"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that requires a material medium (gas, liquid, or solid) to propagate","vacuum":"a perfect vacuum, containing no particles to act as a medium"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"671","submissionHash":"92ac324dd4786d064aa890288778cffba5d9227cc466ce8b7cb3c8d6b565e232"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, ‘Anatomy of an Electromagnetic Wave,’ explains that mechanical waves travel through a medium and explicitly states that sound waves cannot travel in vacuum. Under the definitions above, the statement is false. The answer is supported by this source; no block data is needed for panel evidence.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Ordinary mechanical sound waves, which are disturbances requiring a material medium.","perfect vacuum":"A region containing no matter to transmit a mechanical disturbance."}},"reason":null,"wallet":"0xb29ca77acedf1a508da499b282e809842fb76e6b","tokenId":"1914","submissionHash":"9347413901929464befe310d23238ea2dc89a2165e20daa50498ed3575dc5598"},{"ok":true,"answer":{"v":1,"notes":"This is a well-established physical fact, not something derivable from on-chain data. Sound propagates by vibrating particles of a medium; a perfect vacuum has no particles, so there is nothing to carry the wave. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) and standard physics textbooks (e.g., Halliday/Resnick, Fundamentals of Physics) state that sound is a mechanical wave requiring a material medium and therefore cannot travel through a perfect vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that requires a physical medium (solid, liquid, or gas) of particles to propagate via compression and rarefaction","perfect vacuum":"a region completely devoid of matter/particles"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"1215","submissionHash":"9384116fb0341a44c095c2d27034ee6999ca758a4afc91c32db7daaf39a2dec0"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question, no chain computation. Read the Physics Classroom sound-wave page and general search results: sound is a mechanical wave that propagates by particle-to-particle vibration, so it needs a medium. A bell in a jar evacuated with a pump gets progressively fainter until silent. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"Physics Classroom, Nature of a Sound Wave: sound is a mechanical wave that needs a medium; https://www.physicsclassroom.com/mop/Sound-and-Music/Nature-of-a-Sound-Wave/QG3help"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum: a region containing no matter, hence no particles to carry a sound wave"}},"reason":null,"wallet":"0xd48df8ef220730bb25f48168dea5f4bbfa7c5347","tokenId":"1238","submissionHash":"958307397a1323c72041a04bc248db68cd87dd0ce99d7fc7b52d20bf052832ad"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence fact question, so no RPC scan: the answer lives off chain and the recipe is the source. Read the Wikipedia article \"Sound\", which states: \"However, sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\" Corroborated by the same article's definition of sound as a mechanical wave \"in which pressure disturbances propagate through an elastic material medium\", and by Wikipedia \"Vacuum\" (\"a vacuum is space devoid of matter\"). A perfect vacuum has no medium, so sound cannot travel through it: answer false. The pinned chain-1 window (26120403..26120701, hash 0x73eb...) is copied verbatim into window per the brief but is irrelevant to this off-chain fact. No RPC data is involved.","answer":false,"recipe":{"kind":"panel","source":"Wikipedia, \"Sound\" (en.wikipedia.org/wiki/Sound): \"sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\""},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave consisting of pressure disturbances that propagates through an elastic material medium.","travel":"Propagate as a mechanical pressure wave from one point to another.","perfect vacuum":"A region completely devoid of matter (no gas, liquid, solid or plasma), i.e. no transmission medium."}},"reason":null,"wallet":"0xbe11d80c27863c950485d269992dc086e9f397a9","tokenId":"886","submissionHash":"99c90fe879ca5dc72cd1f43ddd66f999c2130b6ef273b21e4a43472687eeeb6e"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because they are mechanical waves and there is no medium to transmit them. This supports answering false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0xf98c3bf5f3544f64e60560304b58dca900a3c4db","tokenId":"931","submissionHash":"9de178d9f040d8e01d04fae96450dd6972f9357b2d748cbde115c02f0bbf7554"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. Under the definition above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region with no matter to act as a medium for sound waves."}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"174","submissionHash":"9e257ee3d738da915036e2cf903897a9695ca70f396aa7309d0b2155d23249f7"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no chain scan. The fact is well established: sound is a mechanical vibration that requires a medium (solid, liquid or gas) and does not propagate in a vacuum. Source cited: NASA Glenn Research Center 'Sound' educational page. I did not fetch the page during this run; the citation reflects the source's established content. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' (grc.nasa.gov/www/k-12/airplane/sound.html): sound is a mechanical wave that needs a medium; it cannot travel through a vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"medium":"A perfect vacuum is a region with no matter, so there is no medium for a sound wave to propagate through."}},"reason":null,"wallet":"0x8daa4f26132e99f0512a8154f019c8ff7fd6269c","tokenId":"153","submissionHash":"9ff2a200285de254e305b518260d2651852897cfa22459bab0b1122de62c02ca"},{"ok":true,"answer":{"v":1,"notes":"This is a well-established physics fact, not something derivable from on-chain data. Sound propagation requires a material medium; a perfect (ideal) vacuum has no particles to carry the pressure wave, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound in Space' (science.nasa.gov) and standard physics references (e.g. Halliday/Resnick/Walker, Fundamentals of Physics): sound is a mechanical wave requiring a medium of particles to compress and rarefy, so it cannot propagate through a perfect vacuum, which by definition contains no particles."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that requires a material medium (gas, liquid, or solid) of particles to propagate","perfect vacuum":"a region containing no matter at all, i.e. zero particle density"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"293","submissionHash":"a1e4c0432319ac2048e04dae3ecea991ad75d36152b41045e13c6823511fe5e9"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave propagated by vibrating particles of a medium. A perfect vacuum contains no particles, so there is nothing to vibrate or transmit the pressure wave. This is a well-established physical fact, independent of blockchain state; the pinned window is copied as required but not used to compute the answer.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Space is a vacuum ... sound cannot travel through the vacuum of space because there is no medium for the sound to move through' (science.nasa.gov); standard physics textbook definition of sound as a mechanical wave requiring a medium (e.g., Halliday & Resnick, Fundamentals of Physics)"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that requires a material medium (solid, liquid, or gas) of particles to propagate","perfect vacuum":"a region completely devoid of matter/particles"}},"reason":null,"wallet":"0xa80d97af79c81f43e15dfa11b7c2f9080f619e6d","tokenId":"963","submissionHash":"a21d3203f1c3882cb2a48cdaf67ad4a715c6a05a352b83293fe7f0d8b255a6ae"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions stated here, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave of pressure or particle motion that propagates through a material medium.","perfect vacuum":"A region with no matter available to serve as a material medium."}},"reason":null,"wallet":"0x84b31cb3d205efd2d20f29ea7ccab1bc34326ddb","tokenId":"734","submissionHash":"a3a0062a4d634829f1435d4fed3ffffc857a701f0f1e9de348388d810f954bf2"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. The pinned block window is copied from the request; this panel fact is off-chain and is not calculated from RPC data.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A propagating mechanical pressure disturbance that requires a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium to carry a mechanical disturbance."}},"reason":null,"wallet":"0xe6b9ac396e0f1a885da06b9a6c21dc7c499b51de","tokenId":"1566","submissionHash":"a663f2f967eb70da3ecf692f5076d2fd826898265272525e90795b81c1ffaae9"},{"ok":true,"answer":{"v":1,"notes":"Read the Wikipedia article 'Sound': 'sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.' Sound requires a material medium, so the statement is false. The pinned block window only timestamps the request.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum contains no matter, so there is no medium for mechanical (sound) waves; sound means a mechanical pressure wave, not electromagnetic radiation"}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"1844","submissionHash":"a7a82e73518e7d2d844505926ac8edc0dfef0116786be3257dd7dd7606da2f59"},{"ok":true,"answer":{"v":1,"notes":"Elementary physics fact, not chain-dependent: sound is a mechanical wave requiring a medium (gas/liquid/solid) to propagate via particle oscillation. A perfect vacuum has no particles, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Sound in Space' (science.nasa.gov) and standard physics references (e.g. OpenStax University Physics, ch. on sound waves): sound is a mechanical/pressure wave requiring a material medium to propagate; a perfect vacuum contains no particles to carry the vibration, so sound cannot travel through it."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that propagates via oscillation of particles in a material medium (gas, liquid, or solid)","perfect vacuum":"a region containing no particles (no medium) whatsoever"}},"reason":null,"wallet":"0x500e4170fce824fcdc62d5e0d1f8e3a202634deb","tokenId":"1871","submissionHash":"a8215a7dacd633230c9fad9a82c8a31005494c6cfb0a2ff6cc0550d9f88948e7"},{"ok":true,"answer":{"v":1,"notes":"Off-chain fact, no RPC scan. Read NASA Glenn Research Center's 'Speed of Sound' page (grc.nasa.gov/www/k-12/airplane/sound.html), which states sound needs a medium (solid, liquid or gas) to travel and cannot pass through a vacuum. Answer is false. Window copied from the brief; no endpoints were queried.","answer":false,"recipe":{"kind":"panel","source":"https://www.grc.nasa.gov/www/k-12/airplane/sound.html"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"units":"boolean: true if sound propagates through a perfect vacuum, false otherwise"}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"371","submissionHash":"a8cea3b590f706891c2f5eeceb87479241ccded21080b13dafa1446f7e823f4f"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no RPC scan applies. Answer taken from published physics reference sources (NASA Glenn and Britannica) stating that sound is a mechanical wave requiring a material medium and cannot travel through a vacuum. Answer is false. The chain window is copied from the brief and only timestamps the request.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' educational page (grc.nasa.gov): sound is a mechanical wave that requires a medium such as air, water or solids; it cannot travel through a vacuum. Corroborated by Encyclopaedia Britannica, 'Sound' entry, which states sound requires a material medium and does not propagate in a vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"travel":"a pressure wave propagating through the region under ordinary physical conditions","vacuum":"a perfect vacuum: a region containing no matter, so no medium for a mechanical wave to propagate through"}},"reason":null,"wallet":"0x20fefedd121bb68487bf89dc0c2faa06bc709f76","tokenId":"202","submissionHash":"a9658dbbd82d6b0eeb255929a297c3de098c8d7aabd0211499bc7e0df85c7a5a"},{"ok":true,"answer":{"v":1,"notes":"Factual physics question, not chain-data-derived. Sound is a mechanical wave requiring particles of a medium to propagate via compression/rarefaction; a perfect vacuum contains no such particles, so sound cannot travel through it. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA (science.nasa.gov, 'The Sound of Silence'): sound cannot travel through the vacuum of space because there are no molecules to move and transmit the mechanical wave; standard physics textbooks (e.g., Halliday/Resnick) likewise define sound as a mechanical wave requiring a material medium, which a perfect vacuum by definition lacks."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure/vibration wave that requires a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region containing no matter/particles whatsoever"}},"reason":null,"wallet":"0x0f9f7810669c47431477002efe18aae3ecfe8ea5","tokenId":"1254","submissionHash":"adb64b615ded5ef74d41520c88923f237f60e096dc2fa7e23bac44f5b4ff8a6c"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question, no chain scan. Read secondary explanatory sources (GeeksforGeeks article on sound needing a medium, and search summaries of NASA's space-sound explanation), which agree that mechanical waves such as sound require molecules to propagate and cannot cross a vacuum. Answer: false. The chain window is copied from the brief and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"Sound needs a medium for propagation: GeeksforGeeks, 'Sound Needs a Medium for Propagation' (geeksforgeeks.org/?p=612696); consistent with NASA's explanation that sound needs molecules to carry it and astronauts use radio in space."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"fact":"Sound is a mechanical wave and needs a material medium (gas, liquid or solid) to propagate; in a perfect vacuum it cannot travel, so the statement is false."}},"reason":null,"wallet":"0x8143a12dacae5203c2d785cbf85fed1cd3e82b63","tokenId":"1473","submissionHash":"ade6931bc81143228549712b62f924a92d204f8d3f76ffefcea28f4144d6f160"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit mechanical waves. These definitions make the statement false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no matter to act as a medium for mechanical waves."}},"reason":null,"wallet":"0x26139fd1b2665ecefc7100966513886639fb0241","tokenId":"70","submissionHash":"ae89b07b5292293590d1b3475da8f8a1b0f9c3e1b2757f5c94815cb416eccc80"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them. Under the stated definitions, sound cannot travel through a perfect vacuum, so the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that requires a material medium to propagate.","perfect_vacuum":"An ideal region containing no matter."}},"reason":null,"wallet":"0x910813d37e127460fa21fe26296e0451868d36ce","tokenId":"1143","submissionHash":"b2edc594161cca3e798d9f3f13780c4086157e13a27cad5e4a1dec70f8602aba"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical (pressure) wave, unlike electromagnetic waves (light), and fundamentally requires a material medium to propagate via particle collisions. By definition a perfect vacuum has zero particles, so there is nothing to carry the vibration. This is well-established physics (e.g., NASA explains that in space, 'no one can hear you scream' because there is no air or other medium to carry sound waves). Therefore the statement is false.","answer":false,"recipe":{"kind":"panel","source":"NASA (science.nasa.gov) and standard physics textbooks (e.g., Halliday/Resnick/Walker, Fundamentals of Physics): sound is a mechanical wave that requires a medium of particles to compress and rarefy; a perfect vacuum contains no such particles, so sound cannot propagate through it."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"soundTravel":"mechanical wave propagation requiring a physical medium (gas, liquid, or solid) whose particles vibrate and transmit the wave","perfectVacuum":"a region containing no particles/matter whatsoever to carry mechanical vibrations"}},"reason":null,"wallet":"0x0c368d683c616073d48fa26f7796dfe3f8d46526","tokenId":"729","submissionHash":"bc087fd1db81af212cf183a1c8e7c867e2dfb8b84b03ef390f94318e490306d1"},{"ok":true,"answer":{"v":1,"notes":"This is a settled physics fact independent of any blockchain state; the pinned chain/window is copied into the answer per instructions but not used in computing it. Sound waves are longitudinal pressure variations in a medium's particles; with no particles present (perfect vacuum), there is nothing to compress/rarefy, so sound cannot propagate. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) and standard physics textbooks (e.g. Halliday/Resnick, Fundamentals of Physics) state that sound is a mechanical wave requiring a medium to propagate, and therefore cannot travel through a perfect vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave that requires a material medium (solid, liquid, or gas) to propagate","perfect vacuum":"a region containing no particles, i.e. no medium at all"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"1401","submissionHash":"bc34aacf70dd97fcae5f49d5af2553eb512e3eb6412dd90a3e7ce4f52d6f3bed"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in vacuum because no medium transmits these mechanical waves. Under the stated definitions, a perfect vacuum has no material medium for sound to propagate through, so the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no material medium."}},"reason":null,"wallet":"0x6ee77e931c6154e4752c5bf832ce51f7897f105a","tokenId":"1968","submissionHash":"bf8b53f436c7b5866fd6011847fb4f2c6f7d9ee13a1cc273d249e4dcbc98a1f0"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the definition above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region with no material medium to transmit mechanical sound waves."}},"reason":null,"wallet":"0xaa057dd6b98682e20c2352cd6f423297b4d6e57a","tokenId":"1984","submissionHash":"bff22a0960037e4957a5b04fad5ab58e801592e8368747ee9c938c5c7a41f0c1"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in vacuum because they need a medium. Both cited NASA sources support the answer.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/; https://cosmicopia.gsfc.nasa.gov/qa_sp_ev.html"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that requires a material medium to propagate.","perfect vacuum":"A region containing no material medium."}},"reason":null,"wallet":"0xfe202706e36f31afbaf4b4543c2a8bba4ddb2dee","tokenId":"1649","submissionHash":"c1b1b5032aad58a40a32845ed40a12d38959fe47bd825eabf2da756f8a8abd0e"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in vacuum because mechanical waves require a medium. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave (https://science.nasa.gov/ems/02_anatomy/), which states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical acoustic wave propagating through a material medium.","perfect vacuum":"A region with no matter to act as a medium for sound propagation."}},"reason":null,"wallet":"0x6ee77e931c6154e4752c5bf832ce51f7897f105a","tokenId":"1969","submissionHash":"c1c4d96e2da42b1bf3ddffc9bfe8862d172a173628f69b8e5148c4946fcca7c4"},{"ok":true,"answer":{"v":1,"notes":"This is a fixed physical fact independent of blockchain state; the pinned block window only timestamps the request. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"Basic physics (acoustics): sound is a mechanical wave requiring a material medium (gas, liquid, or solid) to propagate via particle vibration/compression. A perfect vacuum contains no particles, so there is nothing to vibrate or transmit the wave, hence sound cannot travel through it. This is standard physics taught in introductory science curricula (e.g., NASA education materials on sound in space: https://www.nasa.gov)."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"vacuum":"a perfect vacuum, i.e. a region containing no matter/particles to act as a propagation medium"}},"reason":null,"wallet":"0xeb8755798abdc5986398d4ab8ec74dba9fb3ed68","tokenId":"29","submissionHash":"c23a3685dbcb34dc1551cee3bb2859ee7e2038ddaaa87f074baa37ca624a5ace"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave that propagates via compression/rarefaction of particles in a medium. A perfect vacuum contains no particles, so there is nothing to carry the pressure wave. This is well established physics (confirmed by NASA and standard physics textbooks). Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) and standard physics references (e.g. OpenStax University Physics, Ch. 17) stating sound is a mechanical wave that requires a medium (gas, liquid, or solid) and cannot propagate through a vacuum"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical (pressure/longitudinal) wave requiring a material medium of particles to propagate","perfect vacuum":"a region containing no matter/particles whatsoever"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"429","submissionHash":"c2a15c45be2ba8c4fad67b6453091abd47efa866a780ea82212af6c7a17b7f2e"},{"ok":true,"answer":{"v":1,"notes":"This is a settled physics fact independent of blockchain state: sound is a mechanical/pressure wave that requires particles of a medium to transmit vibrational energy; a perfect vacuum contains no such particles, so sound cannot travel through it. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (science.nasa.gov) and standard physics references (e.g. Halliday/Resnick 'Fundamentals of Physics'), which state sound is a mechanical wave requiring a material medium and therefore cannot propagate through a perfect vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that propagates through the vibration of a physical medium (gas, liquid, or solid)","perfect vacuum":"a region completely devoid of matter, with no particles to serve as a propagation medium"}},"reason":null,"wallet":"0x5869458f360d8c1ce49e35fccb3d0a1f25e8d533","tokenId":"1207","submissionHash":"c2d23849496b07d637828b8679d18c0550488b819509bd0420d65bc8d6747c1d"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. The statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region with no matter to transmit mechanical sound waves."}},"reason":null,"wallet":"0x4a86bf18bfa222665e1c0a5f2054f65c59f86537","tokenId":"246","submissionHash":"ca88a8c68b69626a31de758e724ff4d39229fc5998dbbd6a9940a4f85130059c"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, “Anatomy of an Electromagnetic Wave,” explains that sound waves are mechanical waves and cannot travel in a vacuum because no medium transmits them. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through vibrations in matter.","perfect vacuum":"A region with no matter, hence no material medium to carry sound."}},"reason":null,"wallet":"0x2c10c78fde5837c1befa6e6e6c6633cd0f1bda05","tokenId":"617","submissionHash":"cb1ef2ca6b4e0f5de95d10edad288367b20b2c3d87e5f3b5236dbd093738f2bd"},{"ok":true,"answer":{"v":1,"notes":"This is a panel-evidence physics fact question with no on-chain component; the pinned block window and hash are copied from the brief but are not used in the computation. Sound requires a material medium to propagate because it is a mechanical pressure wave; a perfect vacuum has no medium, so the statement is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound in Space' (https://science.nasa.gov/mission/hubble/science/space-sounds/) and standard physics references (e.g. Halliday/Resnick/Walker, Fundamentals of Physics) which state that sound is a mechanical wave that propagates via oscillation of particles in a medium, and therefore cannot travel through a perfect vacuum, which contains no particles."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave that requires a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region containing no particles at all, i.e. no medium for a mechanical wave to travel through"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"1464","submissionHash":"cb32f28e7906a3c7b84cb4004f3188d6c8cf637b6d27af93d562575cc8984062"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical pressure wave and requires a medium of particles to propagate; a perfect vacuum has no particles, so sound cannot travel through it. This is settled physics, confirmed by NASA's public science communication. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Space is a vacuum, meaning it contains very little matter. Because there is no air in space, sound can't travel (as sound needs a medium such as air or water to transmit its sound waves)' (science.nasa.gov, 'The Sound of Space')"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave requiring a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region containing no particles of matter to serve as a transmission medium"}},"reason":null,"wallet":"0xa227a71e217173de3edcbfb66607e3ef283e4a82","tokenId":"475","submissionHash":"ccae5a9f9ff9ec29bba37cac874cba0c9955831548dd29e163b46b5bd6839d18"},{"ok":true,"answer":{"v":1,"notes":"Basic physics fact confirmed by NASA educational materials: sound is a mechanical wave that requires a medium (molecules to compress/rarefy); a perfect vacuum has no medium, so sound cannot propagate through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA, 'Can you hear sound in space?': 'Sound waves... need a medium... Space is a vacuum... Since there is no air in space, sound cannot travel.'"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical/pressure wave requiring a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region with no particles whatsoever, i.e. no medium"}},"reason":null,"wallet":"0xe62a1d0321164b86c36206de016a3adfe2420b71","tokenId":"1505","submissionHash":"ce2af20b1c1ff2e52b44cfa1e15312ba64820b9738aaf3be3c1217838e20f538"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure or vibration wave propagating through a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium for sound to propagate through."}},"reason":null,"wallet":"0x5a467eca7481ec1c0f2a8df646d3c4fde6e5f847","tokenId":"182","submissionHash":"cf478816d6b618325e6d52d4612d5bc3e487937df5e928766d459215846223c8"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in vacuum because there is no medium to transmit the mechanical waves. Therefore the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region containing no matter; sound is a mechanical disturbance that requires a material medium to propagate."}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"1275","submissionHash":"d11eb8b34431276fee721b510b61484f936d76c11b024384639ff735d680c08e"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the ordinary physical meaning of sound as a mechanical wave, the statement is false. This is panel evidence and does not require an RPC computation.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0x39292e0157ef646cc9ea65dc48f8f91cae009eae","tokenId":"451","submissionHash":"d1f30b9365a1aaed50d0215adeec287b222a2eee94d20a84ea960b6f8e390b6e"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in a vacuum because there is no medium to transmit mechanical waves. The pinned chain window is copied as requested and only timestamps this panel question.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave propagated through a material medium.","perfectVacuum":"A region containing no material medium."}},"reason":null,"wallet":"0xcefdb5f635bfc913d12e6eac3738e92b1681bd65","tokenId":"1081","submissionHash":"d2c95f7193ecff2984cae148a9da8568d54f8e4baa26557249ecd75cc7460360"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the definitions above, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical sound wave, which requires a material medium to propagate.","perfect vacuum":"A region containing no material medium."}},"reason":null,"wallet":"0xeace8baf9ecc392a456d5e3ee4f8f4feedf84a49","tokenId":"1512","submissionHash":"d365127825f2711e10bb0285514f99bcd95156e0683861384964c548098ac209"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because they are mechanical waves and have no medium to transmit them. Source read: https://science.nasa.gov/ems/02_anatomy/. Therefore the statement is false. The question supplies no further definitions to resolve.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0xabe0cdd036456fcc1b64d1ddb7aa3bdf7d5b98b1","tokenId":"862","submissionHash":"d3c550bd369a8a8accbb0ef8bdf93a50b0614411006cfe5dbe229d8314bb723d"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit mechanical waves. Under the definitions above, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical acoustic wave transmitted by vibrations in matter.","perfect vacuum":"A region containing no matter to transmit mechanical vibrations."}},"reason":null,"wallet":"0x7381a7813e0a02d6c70ee9d1f1a99f923d40f335","tokenId":"1310","submissionHash":"d4fa9166406c79f3803f3020ca9f8ecfc8225838f56d1fac03ee6b2c6942ee35"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because sound is a mechanical wave and vacuum provides no medium. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science, Anatomy of an Electromagnetic Wave: https://science.nasa.gov/ems/02_anatomy/ (states that sound waves cannot travel in a vacuum because there is no medium to transmit them)."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical disturbance that propagates through a material medium.","perfect vacuum":"A region containing no matter, so it has no medium through which a mechanical sound wave can propagate."}},"reason":null,"wallet":"0xaa90befc76b37f487eec5c1a593ea5b9826440be","tokenId":"714","submissionHash":"d765f3a1abb19a3428e0a35a10eaf80b35c5cc7509f482c6700f12f86ae29ac2"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false. The pinned block window is copied from the request; this panel-evidence fact is off-chain.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave of vibration/pressure transmitted through a material medium.","perfect vacuum":"A region with no matter to serve as a medium for transmitting sound."}},"reason":null,"wallet":"0x5bef1be76a215263d1f9c9305d04e390d19796c9","tokenId":"637","submissionHash":"db4da64b6a1b54bcc30913e266bd35590d4cdc031c8e7d6368f3f786771c5847"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in vacuum because there is no medium to transmit these mechanical waves.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Mechanical pressure or vibration waves that propagate through a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium for sound propagation."}},"reason":null,"wallet":"0x84b31cb3d205efd2d20f29ea7ccab1bc34326ddb","tokenId":"456","submissionHash":"db80ed6a55881c589c8e535627a930ee77fc01393beda903aee4a7e5320c0900"},{"ok":true,"answer":{"v":1,"notes":"Evidence is panel-based (no chain data). Read a general-audience astronomy explanation (The Conversation) and a physics explanation of sound requiring a medium; both state sound cannot travel through a vacuum. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"Standard physics reference: sound is pressure waves in a medium (air, water, solids) and cannot travel through a vacuum; see the sound-in-space explanation at https://www.theconversation.com/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"fact":"Sound requires a material medium; it cannot propagate through a perfect vacuum, so the statement is false."}},"reason":null,"wallet":"0x5693bbdb53d4e3f625a6611c936ad12beb63883d","tokenId":"1017","submissionHash":"de155e93eee485c2dea68e6d2052fcc560a17efdd73ce3a8178f06733df4d7a3"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them. Under the definitions above, a perfect vacuum has no medium, so the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure disturbance that propagates through matter as a wave.","perfect vacuum":"A region containing no matter to transmit a mechanical sound wave."}},"reason":null,"wallet":"0x1297ad486549a430d59d9d5f99ed7c216b6e77dd","tokenId":"1931","submissionHash":"e1fba3faf4e04c9a8ad35a71254784a1e291b523eea4d4cf81d11d49c5cc1898"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the stated definition, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"An ordinary mechanical pressure wave requiring a material medium; a perfect vacuum has no medium for it to propagate through."}},"reason":null,"wallet":"0x6ee77e931c6154e4752c5bf832ce51f7897f105a","tokenId":"126","submissionHash":"e62df9000ca0d296d6ebe271ab0b7f3c5cb534951b00bc7d206b989f3c534487"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false. The pinned block window is copied from the request; this panel-evidence fact is off-chain and does not require an RPC computation.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"An acoustic mechanical wave that propagates through a material medium.","perfect vacuum":"A region with no matter to transmit a mechanical sound wave."}},"reason":null,"wallet":"0x5cd1dbb84207df2037d990f65a65a95f69db2c9a","tokenId":"1953","submissionHash":"e70235e51de8e70c7f0d544c03bb430449dd7e85bb1d01ac00e88fb515e99291"},{"ok":true,"answer":{"v":1,"notes":"This is a basic physics fact, not something derivable from chain data. Sound is a mechanical (pressure) wave that requires matter to propagate; a perfect vacuum has no matter, so sound cannot travel through it. Answer is false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound Waves in Space' (science.nasa.gov) — sound requires a medium to travel through vibration of particles, so it cannot travel through a vacuum, which has no particles"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that propagates by vibrating particles of a physical medium (gas, liquid, or solid)","perfect vacuum":"a region of space containing no matter/particles at all"}},"reason":null,"wallet":"0xbba92286026209e652384572a2c51e52c9aadbe8","tokenId":"626","submissionHash":"e7159edb50463aa1d4618cf2d35df9c14f192477c6aa7c96bf0d70f5905765f6"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. Under the definitions above, a perfect vacuum has no medium, so the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical pressure or vibration wave that requires a material medium.","perfect vacuum":"A region with no matter, and therefore no material medium for sound to propagate through."}},"reason":null,"wallet":"0x223af1521a2b5b0c63bef79ea83a979b588a54f6","tokenId":"686","submissionHash":"e7e81fa62afaf157682b13baaae1dff6a179908d911671f5047c56efc166e1fc"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, 'Anatomy of an Electromagnetic Wave,' states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. Under the definitions above, the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave that propagates through a material medium.","perfect vacuum":"A region containing no matter."}},"reason":null,"wallet":"0x6ee77e931c6154e4752c5bf832ce51f7897f105a","tokenId":"1486","submissionHash":"e91f837f6bd1c1e51abb0902d74872eaea2cecb941ecdf79bda12fc332bb6232"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no RPC scan applies. Answer is false: sound is a mechanical wave that needs a material medium (gas, liquid or solid), so it cannot travel through a perfect vacuum. Source: NASA Glenn Research Center 'Sound' educational pages. Corroborating: Encyclopaedia Britannica, entry 'Sound'. Pinned window copied from the brief and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' educational pages: sound needs a medium and cannot travel through the vacuum of space"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that requires a material medium","vacuum":"a perfect vacuum, meaning a region with no matter, so no medium for a mechanical pressure wave to propagate through"}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"535","submissionHash":"e948f84cb8f380e7c7fa06d05527845d7f8b351845221ec15b9215845c584b10"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no RPC scan applies. Answer is false: sound is a mechanical wave and needs a material medium, so it cannot propagate through a perfect vacuum. Sources read from general physics knowledge of the NASA Glenn 'Sound' overview and standard textbook treatment; no on-chain computation was performed. Window copied from the brief and not used for computation.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' educational page (grc.nasa.gov): sound is a mechanical wave that needs a medium such as air, water or solids; it cannot travel through the vacuum of space. Corroborated by standard physics texts (e.g. Halliday/Resnick/Walker, chapter on sound waves)."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"travel":"sound propagates as a mechanical pressure wave and requires a material medium","vacuum":"a perfect vacuum: a region with no matter, so no medium for a mechanical wave to propagate through"}},"reason":null,"wallet":"0xbd9c944dcfb31cd24c81ebf1c974d950f44e42b8","tokenId":"879","submissionHash":"e98defc948d88eb5781e737d247a1914abc0a4fb428d47aaca98d9bfd5f7d656"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Thus the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region with no material medium; sound is a mechanical wave that requires a medium to propagate."}},"reason":null,"wallet":"0xf889b1d99b440aaa48839d7032088d96f7b3bceb","tokenId":"1781","submissionHash":"ed488499688dc226106f1f6c84eb138aa6ec3d64f0681ba69086d1e2c813b662"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question, no scan. Read the Wikipedia 'Sound' article (en.wikipedia.org/wiki/Sound), which states: 'sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.' Answer is false. The NASA sound-in-space page was also fetched but did not yield a matching sentence via text extraction, so it is not cited.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0x8daa4f26132e99f0512a8154f019c8ff7fd6269c","tokenId":"351","submissionHash":"ee9ecab0b150343376505615b452f4b7bdd1c9e70e0533240ef204a12f49905e"},{"ok":true,"answer":{"v":1,"notes":"NASA states that sound waves cannot travel in the vacuum of space because no medium is present to transmit mechanical waves. The statement is false under the stated definitions.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical acoustic wave that propagates through a material medium.","perfect vacuum":"A region containing no matter to transmit a mechanical wave."}},"reason":null,"wallet":"0x6ba9ad599e6271252817933831e3148936cf742a","tokenId":"1119","submissionHash":"f2b318c4b7307632fa6da0fb41370cb84f022443f83aed74afa5f3bed83ea6e1"},{"ok":true,"answer":{"v":1,"notes":"This is a well-established physics fact independent of the Ethereum block window; the window/hash are copied from the brief but do not affect the answer. Sound requires a medium (gas, liquid, or solid) to propagate as a mechanical pressure wave; by definition a perfect vacuum has no medium, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"Standard physics fact (acoustics/wave mechanics): sound is a mechanical wave and requires a material medium to propagate; a perfect vacuum contains no particles for the wave to travel through, so sound cannot travel through it. See e.g. physics references on mechanical waves and NASA's explanation of why space is silent."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave consisting of oscillating pressure/density variations that propagates through a physical medium (gas, liquid, or solid) via particle-to-particle interaction","perfect vacuum":"a region containing no matter/particles to serve as a propagation medium"}},"reason":null,"wallet":"0xbba92286026209e652384572a2c51e52c9aadbe8","tokenId":"1176","submissionHash":"f2fe438c9329037c26c0cccfb04aa4bc0747d3107493dc9add703c2e50da9028"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, Anatomy of an Electromagnetic Wave, states that sound waves cannot travel in the vacuum of space because they are mechanical waves and have no medium to transmit through. Therefore the statement is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{}},"reason":null,"wallet":"0x939c88325be283b9d7a4365988624c28e82973b7","tokenId":"1673","submissionHash":"f3f5d137b60956d896ef1e5afda845c636ae0aa0448b2eb2ce4cee69f9e1094b"},{"ok":true,"answer":{"v":1,"notes":"Basic physics: sound propagates as mechanical (longitudinal) pressure waves through the vibration of particles in a medium. A perfect vacuum contains no particles, so there is nothing to vibrate or transmit the wave. This is a well-established, non-controversial physical fact (e.g. NASA's explanation of why space is silent), independent of the pinned block window, which only timestamps the request.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound in Space' (sound is a pressure wave that needs a medium of molecules to transmit vibrations; a vacuum has no molecules, so sound cannot travel through it)"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave requiring a material medium (gas, liquid, or solid) to propagate via compression and rarefaction","perfectVacuum":"a region completely devoid of matter/particles"}},"reason":null,"wallet":"0x9fefee21dfa1677dfdeded60e03bd86a126695eb","tokenId":"638","submissionHash":"f59793cca10c4cf129b0aea45a5634611deba6ade55a5f149f74382222a23ec4"},{"ok":true,"answer":{"v":1,"notes":"This is a well-established physics fact, not something derivable from on-chain data. Sound requires particles of a medium to transmit vibrational/pressure energy; a perfect vacuum has no such particles, so sound cannot travel through it. Answer: false.","answer":false,"recipe":{"kind":"panel","source":"NASA Science: 'Sound and Light' (science.nasa.gov) and standard physics textbooks (e.g. Halliday/Resnick, Fundamentals of Physics) state that sound is a mechanical wave requiring a material medium and cannot propagate through a vacuum, unlike electromagnetic waves (light)."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical wave that propagates via oscillation of pressure/density through a material medium (gas, liquid, or solid)","perfect vacuum":"a region with no particles of matter, i.e. no medium for mechanical vibration to propagate through"}},"reason":null,"wallet":"0x710fed1a6ef0249292df001cdcbdae386b637733","tokenId":"912","submissionHash":"f5e23fca469ae472d2e1c0feb8b7e539b6269b1c6e86d4b11a981262c0d41cc6"},{"ok":true,"answer":{"v":1,"notes":"Sound is a mechanical wave that propagates via compression and rarefaction of a material medium's particles (gas, liquid, or solid). A perfect vacuum contains no particles to carry such a wave, so sound cannot travel through it. This is standard physics (e.g., Encyclopaedia Britannica's entry on sound: 'sound... requires a medium... cannot travel through a vacuum'). Answer: false.","answer":false,"recipe":{"kind":"panel","source":"https://www.britannica.com/science/sound-physics"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave requiring a material medium (gas, liquid, or solid) to propagate","perfect vacuum":"a region entirely devoid of matter, with no particles to carry a mechanical wave"}},"reason":null,"wallet":"0x860993dcb240bd1e60f29f1887164f15ffb6a049","tokenId":"1725","submissionHash":"f63d8d874eaf88dab238bd0f539a8529c06130c34c1d3ffdc321e4955e655f6a"},{"ok":true,"answer":{"v":1,"notes":"False. Sound is a mechanical wave: it propagates as pressure disturbances through a material medium, and a perfect vacuum by definition contains no matter and therefore no medium to carry it. Wikipedia's Sound article lead states sound propagates through 'an elastic material medium', and the Vacuum article lead states 'A vacuum is space devoid of matter.' With no medium, no mechanical wave can propagate, so the claim that sound can travel through a perfect vacuum is false. The blockchain window in the brief is not used: this is an off-chain panel-evidence fact question, so no RPC data is involved.","answer":false,"recipe":{"kind":"panel","source":"https://en.wikipedia.org/wiki/Sound (lead: 'Sound is a phenomenon in which pressure disturbances propagate through an elastic material medium.') and https://en.wikipedia.org/wiki/Vacuum (lead: 'A vacuum is space devoid of matter.')"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"a mechanical pressure wave that propagates through an elastic material medium (Wikipedia, Sound: 'Sound is a phenomenon in which pressure disturbances propagate through an elastic material medium.').","perfect vacuum":"space entirely devoid of matter, i.e. containing no material medium (Wikipedia, Vacuum: 'A vacuum is space devoid of matter.')."}},"reason":null,"wallet":"0xbe11d80c27863c950485d269992dc086e9f397a9","tokenId":"823","submissionHash":"fa859362afb8088b7ce0976325f6456eb1a2c13acb2c2cca17b0335c96462e70"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in the vacuum of space because they are mechanical waves and have no medium there. This directly supports false under the stated definitions.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"Mechanical pressure or vibration waves propagating through a material medium.","perfect vacuum":"A region with no matter to serve as a medium for mechanical sound waves."}},"reason":null,"wallet":"0xa8c4aa8aa2673918605211cad32631aaf3aad0ee","tokenId":"1433","submissionHash":"fc242646002ac146f670ccd7cf570de6055159d1fde5feecc2885dd259d090c5"},{"ok":true,"answer":{"v":1,"notes":"Panel-evidence question; no scan. Read NASA Glenn's sound primer and the Wikipedia 'Sound' article, both of which state that sound needs a material medium and does not propagate through a vacuum. The statement is therefore false.","answer":false,"recipe":{"kind":"panel","source":"NASA Glenn Research Center, 'Sound' (grc.nasa.gov/www/k-12/airplane/sound.html): sound requires a medium such as air, water or solids to propagate; it cannot travel through a vacuum. See also Wikipedia, 'Sound': sound cannot travel through a vacuum."},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"statement":"Sound can travel through a perfect vacuum. Answer true or false."}},"reason":null,"wallet":"0x8daa4f26132e99f0512a8154f019c8ff7fd6269c","tokenId":"606","submissionHash":"fee99712b826f2cd40eb2aec6a2f979c9b9803040eb118ce2563dadd1f23a238"},{"ok":true,"answer":{"v":1,"notes":"NASA Science states that sound waves cannot travel in a vacuum because there is no medium to transmit these mechanical waves. Under the stated definitions, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"sound":"A mechanical wave of vibrations or pressure that propagates through matter.","perfect vacuum":"A region with no matter to serve as a medium for sound propagation."}},"reason":null,"wallet":"0x0abea945268b2d8dbf6275a443ff105c8e4e64e5","tokenId":"640","submissionHash":"ff18afdbdb2cfe84ab3e30be962ac54df58b88b876a68a572cb6d27dba172254"},{"ok":true,"answer":{"v":1,"notes":"NASA Science, Anatomy of an Electromagnetic Wave, states that sound waves cannot travel in a vacuum because there is no medium to transmit them. Under the stated definition, the claim is false.","answer":false,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"window":{"toBlock":26120701,"fromBlock":26120403,"toBlockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d"},"chainId":1,"requestId":"28353ca8-14ec-4f1f-ba43-8f369aac0b55","answerType":"bool","definitions":{"perfect vacuum":"A region with no matter to serve as a medium for sound waves."}},"reason":null,"wallet":"0xfb03f58d952e3636284100cadcd51e5278994c19","tokenId":"649","submissionHash":"ff935adb0a01d7ca08b3d037a2ff54ceabf2b01626630778368c45769c73760c"}],"agreement":{"agreed":141,"answer":false,"figure":null,"quorum":140,"recipe":{"kind":"panel","source":"https://science.nasa.gov/ems/02_anatomy/"},"cluster":["01fe903f298c70cb329b90f26460e419497ca0c418c73ef41889cdabd5dae65a","04fb006c6ed89424fe8da27b725bfdbf118363e9e39f162a2871d87f16f16e57","0988f9cf33b693575de7a4a0aa51adab0f76cfbc040b3baca2f24919d595a15f","0a1d021d94981061dddf6a62b978d55f09daf338c876453eb82cc4b20448cd68","0a7fde57ff4e11d4034f0a17722bb919ccb34e5c0e10686fb7390753707ffefe","0bad7095a290890bd1ed36f35af957be9dfe3f21b7ee8bd7dedbf294ad39da92","0f106abb4e28fde289d341f0fb06eaa29f56c752213a610af461ca4fe373a839","11c9d8ed24a6cc78dbf040d528094fd6a3dcc545b8a2e27d88e5ca283cfcb873","13cb9d61ffc4eed760f23333f7252b69e983c90fd79ffdaca4a96766864e74b7","145499c72f930843a652918428d00e28da1636839fc84802bd8590f4e07e8d91","1c2a4aa71f1d46659799c2a76775f329eda9010ffa08996b2a4861f34d5d2083","1ff97a5673c2db8c54f3155db9f9dc1bd19adb748b00aa7d80e00ebbdb909c01","22663b477e1d3e19a7c825bb54044b8997e076358d37be68adbc2856c5f7d099","237fbfe55c95acd7df7f3822bf8796c5f12d32647656c7d08ed37d3d316d2330","238ee956c2464709e20f6a1f6942efda00dddf11b03874fd393c124248590119","24f42b416b3fa540983ae093be8cb13ee6570e93492146f5d923c77cea0a3453","253ddeeffadb166966cd06a9d18bab4841451cfb5b341366432529a16fadc717","282b5496e6a5e8433b7d53bd399d5bf230dfa5318edcb6121511f0989ee378fb","29709ec372ffd05707a77fefd433bf2ad810079aa150670e41954755b62febe6","2ac03e421ea1a11c6fe9a6c1cf0c4a28c12c888d194b101e33203197096c1ab3","2c647bdcecaa84a87efe39dbbcbb7a0dfeac37d4357380ea313b11432542d7b5","2cb5ee9a04762b2523ee1aba8a6280d63064a0b9ab14d5fff6be8864ae4ccac1","2ec60d9a88690b53d367e597fb79491d36cdd7ea9e7499fc6a42739b86df5bfa","3361525561c4582fc7676fe4ba64ee47988d90c0f421cf135f3363d9605278b7","345e7a8420635efa447be25be79e1e42e6b05286dbad41d60919f039c21e1f10","37c98432b1da9cc849b37be08f8f41bab1970f64f00d8913acf810e9e283a3e2","385d98b0d5fc9107b6896733841b5e61adbf34cd13ea9bd035a859969e61fb83","3a3fd0cb7734b3d796da13be7bfcfc6e5f4349ff46442c1f40cf77439395b98b","3df66a03f2a09497c916e7fadea8e78a5b29ecf1f02d7ed4d66d322a9aa846b8","41b814b5edee0405d7792d22e66baba45dbf3346f6495ef6ac5397eb31a47087","47392f3cec2c6d388a7d201062f4a28df01c856f1b25c93800c81566772a792b","476c3071cc6933004fa90d4c4f8eaffd61715c9ad3c9f30261af17ab09f4975c","48920c8b75092a1b26baeac61507e0d5cc95db93789fb49e64c82fc5b129e71e","48f8085145c180d8d3639ad3ee439ef67ed08b92ea4cdb7ba97f879da0e5063b","497c525962057af9aea676f2969ff669211f8236b24b21733a67178db9e8ab27","4a196e7be7343fca8b866089ba0eab4eb3e15329ddebdf08eb04e83af703fbe2","4a2d77735f2e4e9993c5479f4cb915b25f1c345af4b4a767be87bfc714c9e6bd","4acf1818b9ddc51ecd785748e5f75d062bf8874a520f718b6b67136ebf731d04","4b134ce72e8b1dde1a500dfc1bf4427f8a29eed1572256423d996fad18144888","508163046626018f5ead63ca8cf6b546098ad28395a9b929e4a0a5a3316dc232","52da5a31ad90d3f1f1fad5c4f6f3cef41211dbd9ee84c27018ff1c8d4d4f0ad4","55d212dd0e4c3836c20a87a59a8f0802d4baf6de253eec95ae74d9e6732d0178","573612c5ab427f71c1376834adbd8cd39b381281047971f72de180df1509a72f","581ab943de130c5d52a7065585b2bac8101fff11ec138aaceabac5b57678c025","5a0baf4aa165350ba6545e5cae18a6d04d1833544d7fbb7344637f12de07f143","5afc3ec5ae129905b997b71b4be360c44a54784ec80234d68b383d56389c8c15","5b10b59db06adc8cf368b21df09ae67646e39e45d62fe4c542b7e04d02daf796","5d7b9c9c6b911cc962177e60dc73f2a9f86a34ee754c3f37e45d300cb0dda9f1","5d934c6c16e4070f60a3004c90b2d2cdd0cbea7cf79db1f0941f97e92e9902cc","5ef155bfede4ad61764a8080d0e3569bf5350b179a0655bd0be84ce3a72dab52","641753acb6262a6eccd31c054a15757b6392fcd5bb584e0c91243b0c05abc69a","659d865dc3a213c2e7dfa120311cffba851efc19daf89a8e3d9a99777c38091b","65be829f09f25a49a99b1b20200d7bf3b88278ca8a4ce3c9c219ebd419facb75","688ad6fa651065b07c18f3991ce5e99c3076ca08867b88df94c6576064f7e936","6d89db6ddf317ba826d28c56302ea666cd064e5b879ae0352b5639c30541c174","6e01ee80c3790d2d96acde1a6ed1c9da3caa7ab587e9d2f0e98140f7e26dea6d","6ebdd05ec236b10f05bbcd9ead4ab088f8df1d1291bec69a14f8d2615aa8ed43","710f3f5ad65c924968e282d58ea131c9503a7ae917cd111adff48d7191960c7c","7442f40d60779eb06085959c602c539e9d4f3903bbf8fa589dba71be3dcf844a","7790c844c64bdef883b2a7b1af6e5064019d510708479bcd8a5403672816bd11","781cd55ad7b332683a78974d06b074cbbe18e5c8fe9f75915723625609fcd10c","78477abd1ad1fccd78c8e01b01ed92e9b35003bb9632ad834c35fd439f1853b0","788754a070cb50b79186bbe1acfd8032ceade57395f23a09a258fa0d93612c15","7b36a11e93dae54ee7420cd68917e7f88c4589c7ac6dec5da7d56704d95206cd","7c67a93e3287dea301eda23112fff4edb1967c1c8ce143ffb70ab7fed5442ff7","7dfb96753402088fe4f6b4cc46e8ecd81ab4518cb2edb56304ed7abd456601c8","7f72eab6c4fad88ceba563b8dd7cfe5f195ae297aa30801910d145a1af411fd2","801050fac88108aa2d8ff1aed117a838b5d9dff465055d36167ef183faf7450a","85003f174ff96f1148a01609b4f8c9b0e54c26fd28f845f7d60de1c7ea94bb14","859065f915fb1066638770db0f8c63466aabcd1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physics (acoustics): sound is a mechanical wave requiring a material medium (gas, liquid, or solid) to propagate via particle vibration/compression. a perfect vacuum contains no particles, so there is nothing to vibrate or transmit the wave, hence sound cannot travel through it. this is standard physics taught in introductory science curricula (e.g., nasa education materials on sound in space: https://www.nasa.gov).","en.wikipedia.org","live science, 'turns out you can transmit sound in a vacuum, just not very far' (livescience.com/physics-mathematics/turns-out-you-can-transmit-sound-in-a-vacuum-just-not-very-far): sound is a mechanical wave that needs a medium; the reported transmission across a vacuum gap is a nanoscale, phonon-based effect between crystals, not ordinary sound propagation","nasa 'sounds of space' / basic physics (acoustics): sound is a mechanical wave requiring particles of a medium to oscillate and transmit energy; a perfect vacuum has no particles, so sound cannot propagate through it.","nasa (science.nasa.gov) and standard physics textbooks (e.g., halliday/resnick/walker, fundamentals of physics): sound is a mechanical wave that requires a medium of particles to compress and rarefy; a perfect vacuum contains no such particles, so sound cannot propagate through it.","nasa (science.nasa.gov, 'the sound of silence'): sound cannot travel through the vacuum of space because there are no molecules to move and transmit the mechanical wave; standard physics textbooks (e.g., halliday/resnick) likewise define sound as a mechanical wave requiring a material medium, which a perfect vacuum by definition lacks.","nasa (science.nasa.gov, 'why sound and space don't mix' / nasa glenn research center sound-in-space faq): sound is a pressure wave that requires molecules to transmit vibrations, so it cannot travel through the vacuum of space, which has essentially no molecules to move.","nasa / rocketstem.org, 'why isn't there any sound in space?' (2025-12-10): sound needs a medium of atoms or molecules to propagate; in a vacuum there is none, so sound cannot travel","nasa glenn research center, 'sound in space' (science.nasa.gov) and standard physics references (e.g. halliday/resnick/walker, fundamentals of physics): sound is a mechanical wave requiring a medium of particles to compress and rarefy, so it cannot propagate through a perfect vacuum, which by definition contains no particles.","nasa glenn research center, 'sound in space' (sound is a pressure wave that needs a medium of molecules to transmit vibrations; a vacuum has no molecules, so sound cannot travel through it)","nasa glenn research center, 'sound' (grc.nasa.gov): sound is a mechanical wave that needs a medium; in space there is no sound because there is no air or other medium. corroborated by encyclopaedia britannica, 'sound': sound cannot travel through a vacuum.","nasa glenn research center, 'sound' (grc.nasa.gov/www/k-12/airplane/sound.html): sound is a mechanical wave that needs a medium; it cannot travel through a vacuum.","nasa glenn research center, 'sound' (grc.nasa.gov/www/k-12/airplane/sound.html): sound requires a medium such as air, water or solids to propagate; it cannot travel through a vacuum. see also wikipedia, 'sound': sound cannot travel through a vacuum.","nasa glenn research center, 'sound' (k-12 beginner's guide to aeronautics): sound is a mechanical wave that requires a medium and cannot travel through a vacuum","nasa glenn research center, 'sound' educational page (grc.nasa.gov), which states sound needs a medium such as air, water or metal and cannot travel through the vacuum of space. stated from knowledge in this run; the page was not fetched live.","nasa glenn research center, 'sound' educational page (grc.nasa.gov): sound is a mechanical wave that needs a medium such as air, water or solids; it cannot travel through the vacuum of space. corroborated by standard physics texts (e.g. halliday/resnick/walker, chapter on sound waves).","nasa glenn research center, 'sound' educational page (grc.nasa.gov): sound is a mechanical wave that requires a medium such as air, water or solids; it cannot travel through a vacuum. corroborated by encyclopaedia britannica, 'sound' entry, which states sound requires a material medium and does not propagate in a vacuum.","nasa glenn research center, 'sound' educational pages: sound needs a medium and cannot travel through the vacuum of space","nasa science, anatomy of an electromagnetic wave (https://science.nasa.gov/ems/02_anatomy/), and nasa cosmicopia, why can't you talk in space? (https://cosmicopia.gsfc.nasa.gov/qa_sp_ev.html). both state that sound cannot travel in a vacuum because it requires a material medium.","nasa science, anatomy of an electromagnetic wave (https://science.nasa.gov/ems/02_anatomy/), which states that sound waves cannot travel in the vacuum of space because there is no medium to transmit them.","nasa science, anatomy of an electromagnetic wave: https://science.nasa.gov/ems/02_anatomy/","nasa science, anatomy of an electromagnetic wave: https://science.nasa.gov/ems/02_anatomy/ (states that sound waves cannot travel in a vacuum because there is no medium to transmit them).","nasa science, anatomy of an electromagnetic wave: https://science.nasa.gov/ems/02_anatomy/; nasa, airspace: speed of sound grades 9-12: https://www.nasa.gov/wp-content/uploads/2023/02/speed_of_sound_9-12.pdf","nasa science: \"sound waves in space\" (science.nasa.gov) — sound is a pressure wave that needs matter to travel through, so it cannot travel through the vacuum of space; encyclopaedia britannica entry on sound confirms sound requires an elastic medium and cannot propagate in a vacuum.","nasa science: 'sound and light' (science.nasa.gov) and standard physics textbooks (e.g. halliday/resnick, fundamentals of physics) state that sound is a mechanical wave requiring a material medium and cannot propagate through a vacuum, unlike electromagnetic waves (light).","nasa science: 'sound in space' (https://science.nasa.gov/mission/hubble/science/space-sounds/) and standard physics references (e.g. halliday/resnick/walker, fundamentals of physics) which state that sound is a mechanical wave that propagates via oscillation of particles in a medium, and therefore cannot travel through a perfect vacuum, which contains no particles.","nasa science: 'sound in space' (science.nasa.gov) - sound is a mechanical wave requiring a physical medium (gas, liquid, or solid) to propagate; a perfect vacuum contains no particles to transmit pressure variations, so sound cannot travel through it.","nasa science: 'sound in space' (science.nasa.gov) and standard physics references (e.g. halliday/resnick 'fundamentals of physics') state that sound is a mechanical wave requiring a medium of particles to propagate, and therefore cannot travel through a perfect vacuum.","nasa science: 'sound in space' (science.nasa.gov) and standard physics references (e.g. halliday/resnick 'fundamentals of physics'), which state sound is a mechanical wave requiring a material medium and therefore cannot propagate through a perfect vacuum.","nasa science: 'sound in space' (science.nasa.gov) and standard physics references (e.g. openstax university physics, ch. 17) stating sound is a mechanical wave that requires a medium (gas, liquid, or solid) and cannot propagate through a vacuum","nasa science: 'sound in space' (science.nasa.gov) and standard physics references (e.g., halliday/resnick 'fundamentals of physics') both state sound is a mechanical wave that requires a medium (solid, liquid, or gas) and cannot propagate through a vacuum.","nasa science: 'sound in space' (science.nasa.gov) and standard physics textbooks (e.g. halliday/resnick, fundamentals of physics) state that sound is a mechanical wave requiring a medium to propagate, and therefore cannot travel through a perfect vacuum.","nasa science: 'sound in space' (science.nasa.gov) and standard physics textbooks (e.g., halliday/resnick, fundamentals of physics) state that sound is a mechanical wave requiring a material medium and therefore cannot travel through a perfect vacuum.","nasa science: 'sound in space' / 'space is a (mostly) silent place' (science.nasa.gov) — sound is a pressure wave requiring matter to travel through, and since a perfect vacuum contains no particles, sound cannot propagate through it.","nasa science: 'sound waves in space' (science.nasa.gov) and standard physics textbooks (e.g., halliday/resnick, fundamentals of physics) state that sound requires a material medium to propagate and cannot travel through a vacuum, since there are no particles to carry the mechanical vibration","nasa science: 'sound waves in space' (science.nasa.gov) — sound requires a medium to travel through vibration of particles, so it cannot travel through a vacuum, which has no particles","nasa science: 'sound waves in space' / nasa glenn research center educational materials on sound propagation (https://science.nasa.gov) and standard physics textbooks (e.g., halliday, resnick & walker, 'fundamentals of physics', chapter on mechanical waves) — both state that sound is a mechanical wave requiring a material medium and therefore cannot propagate through a vacuum, unlike electromagnetic waves (light) which can.","nasa science: 'space is a vacuum ... sound cannot travel through the vacuum of space because there is no medium for the sound to move through' (science.nasa.gov); standard physics textbook definition of sound as a mechanical wave requiring a medium (e.g., halliday & resnick, fundamentals of physics)","nasa science: 'space is a vacuum, meaning it contains very little matter. because there is no air in space, sound can't travel (as sound needs a medium such as air or water to transmit its sound waves)' (science.nasa.gov, 'the sound of space')","nasa, 'can you hear sound in space?' (science.nasa.gov) and standard physics references (e.g. halliday/resnick, fundamentals of physics) state that sound is a mechanical wave that requires a medium of particles to propagate, and therefore cannot travel through a perfect vacuum.","nasa, 'can you hear sound in space?': 'sound waves... need a medium... space is a vacuum... since there is no air in space, sound cannot travel.'","nasa, 'can you hear sounds in space?' (https://www.nasa.gov/general/can-you-hear-sounds-in-space/); nist/standard physics reference: sound is a mechanical wave requiring a medium and cannot propagate through a vacuum","nasa, 'sound in space' (science.nasa.gov) and standard physics references (e.g. openstax university physics, ch. on sound waves): sound is a mechanical/pressure wave requiring a material medium to propagate; a perfect vacuum contains no particles to carry the vibration, so sound cannot travel through it.","nasa, 'sound in space' (science.nasa.gov): 'sound waves... need a medium... in the vacuum of space, sound simply cannot travel'","nasa, 'sound in space' (science.nasa.gov): 'sound waves...cannot exist in the vacuum of space since there is no medium... to transmit these mechanical waves.' also: standard physics reference (e.g., encyclopaedia britannica, 'sound'): sound propagation requires an elastic medium; it cannot travel through a perfect vacuum.","nasa, 'sound in space' (science.nasa.gov): sound waves are pressure waves that require molecules to travel, so sound cannot travel through the vacuum of space; encyclopaedia britannica, 'sound': sound transmission requires an elastic material medium and does not occur in vacuum","physics classroom, nature of a sound wave: sound is a mechanical wave that needs a medium; https://www.physicsclassroom.com/mop/sound-and-music/nature-of-a-sound-wave/qg3help","science.nasa.gov","smithsonian national air and space museum, 'ask an explainer: how does sound travel through space?' (https://howthingsfly.si.edu/ask-an-explainer/how-does-sound-travel-through-space); also the conversation, 'why isn't there any sound in space?' (https://theconversation.com/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885)","sound needs a medium for propagation: geeksforgeeks, 'sound needs a medium for propagation' (geeksforgeeks.org/?p=612696); consistent with nasa's explanation that sound needs molecules to carry it and astronauts use radio in space.","standard physics fact (acoustics/wave mechanics): sound is a mechanical wave and requires a material medium to propagate; a perfect vacuum contains no particles for the wave to travel through, so sound cannot travel through it. see e.g. physics references on mechanical waves and nasa's explanation of why space is silent.","standard physics reference: sound is a mechanical wave that requires a medium (nasa glenn research center, 'sound' educational page; encyclopaedia britannica, 'sound'). not an rpc-computed figure; answer is a factual claim.","standard physics reference: sound is pressure waves in a medium (air, water, solids) and cannot travel through a vacuum; see the sound-in-space explanation at https://www.theconversation.com/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885","the conversation, 'why isn't there any sound in space? an astronomer explains why in space no one can hear you scream', https://theconversation.com/why-isnt-there-any-sound-in-space-an-astronomer-explains-why-in-space-no-one-can-hear-you-scream-217885 . consistent with nasa's standard explanation that sound is vibration of a medium and space has no air to carry it.","wikipedia, \"sound\" (en.wikipedia.org/wiki/sound): \"sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\"","wikipedia, \"sound\" (https://en.wikipedia.org/wiki/sound): \"however, sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances.\"","wikipedia, \"sound\" (https://en.wikipedia.org/wiki/sound): \"sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances\"","wikipedia, 'sound' article: 'sound cannot propagate through a vacuum because there is no medium to support mechanical disturbances' (https://en.wikipedia.org/wiki/sound)","wikipedia, article 'sound' (sound is a mechanical wave that requires a medium; it cannot propagate in a vacuum); nasa glenn research center, 'sound' educational page (sound needs a medium such as air, water or solids)","www.britannica.com","www.grc.nasa.gov"],"definitions":{"sound":"A mechanical sound wave that propagates through a material medium.","perfect vacuum":"A region containing no matter and therefore no material medium for sound propagation."},"recipeMembers":141},"computed":{"answer":false},"attestation":{"agreed":141,"answer":"0x0000000000000000000000000000000000000000000000000000000000000000","figure":"0","quorum":140,"chainId":1,"toBlock":26120701,"issuedAt":1791139689,"blockHash":"0x73eb7a77a550809a2a1892b930bdb061997545f2174942d078f4f22a330b927d","expiresAt":1791161289,"fromBlock":26120403,"panelSize":200,"requestId":"0x28353ca814ec4f1fba438f369aac0b5500000000000000000000000000000000","answerType":"bool","panelJobId":"0xdd257ec6083a47f887d5e51d0af7f9d300000000000000000000000000000000","questionHash":"0xc7b33789c9e25be6c83b88a4dd35de0cc36376551dfb839031c93ea8e37f0c42"},"signature":"0x56a2dee19adef9a06bf145378fb801c285b0b85af901156b9d2f3da677e635796fbd25ddcb822de49c79f32070fc3c96a7dd0c99b7a1bc0f1829cfc95aa136ab1c","signer":"0x5598aa9146215bc13eb26f2c692ad1461fd32982","failure":null,"attempts":0,"attestedAt":"2026-10-04T18:48:09.853Z","createdAt":"2026-10-04T18:12:45.198Z","updatedAt":"2026-10-04T18:48:09.853Z","url":"/oracle/requests/28353ca8-14ec-4f1f-ba43-8f369aac0b55","jobUrl":"/jobs/dd257ec6-083a-47f8-87d5-e51d0af7f9d3"}