Timeline for Why is the speed of light said to be constant when we know it slows down in a medium?
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| Apr 13, 2017 at 12:40 | history | edited | CommunityBot |
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| Jan 4, 2017 at 17:27 | comment | added | AccidentalFourierTransform | @Physicist most people omit the "in vacuum" for simplicity, but when books try to make a precise statement, they always include that phrase. | |
| Jan 4, 2017 at 16:13 | history | answered | AccidentalFourierTransform | CC BY-SA 3.0 |