The velocity of light in vacuum, c, is approximately 3 × 10 8 m s −1, fast enough to make 7.5 round-the-world trips in a single second, and to move a distance of 300 mm in 1 ns. This ultrahigh speed ...
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We independently review everything we recommend. We may make money from the links on our site. Learn more› By Christine Cyr Clisset Christine Cyr Clisset is the special projects director for ...
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