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29 October, 21:56

What's the speed of light?

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Answers (2)
  1. 29 October, 22:28
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    The speed of light is 299,792,458 meters per second. So, it takes about 8 minutes for the light of the Sun to travel to Earth.
  2. 30 October, 00:27
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    In vacuum: 299,792,458 meters per second. In any material: somewhat less; depends on the substance.
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