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Why does light slow down in a fiber optic cable?
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If we put a mirror millions of light years away and reflected earth, could we see what earth looked like millions of years ago? Started bythedocBoardPhysics, Astronomy & Cosmology |
Replies: 9 Views: 18338 |
20/05/2018 00:53:37 byraf21 |
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What is "light" pressure? Started bysorincosofretBoardPhysics, Astronomy & Cosmology |
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13/02/2018 19:46:54 by比尔年代 |
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What is a halogen light bulb? What halogen is used and why is this better? Started bychrisBoardTechnology |
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02/02/2010 11:17:45 byMazurka |
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Is solar energy the same as light energy? Started by FeliciaBoardTechnology |
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27/01/2023 00:00:13 byBored chemist |
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What is Time? If there was no light would Time cease to be? Started bylondounkmBoardPhysics, Astronomy & Cosmology |
Replies: 328 Views: 140421 |
05/08/2021 23:30:04 bygem |