speed of light
(redirected from 299,792,458)Also found in: Dictionary, Encyclopedia.
- noun
Also found in: Dictionary, Encyclopedia.
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2]/s Speed of light 299,792,458 m/s meter in a vacuum Elementary 1.
0] and since 1983, has been defined as 299,792,458 metres per second.
I think they had meant to say "speed of light", which everyone knows is 299,792,458 m/s.
A meter is defined as the distance light travels in 1/299,792,458 seconds, which fixes c to the value 299,792,458 m/s.
Gezari [1] reported a difference of 200 [+ or -] 10 m/s to the known value (c = 299,792,458 m/s according to [1]), which is in accordance with the speed of the observatory on the earth to the retro-reflector on the moon.
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