Scientists examine nothing, find something

26/03/2013 13:40

By Staff / March 25, 2013
Where did the speed of light in a vacuum come from? Why is it 299,792,458 meters per second and not some other figure? The simple answer is that, since 1983, science has defined a meter by the speed of light: one meter equals the distance light travels in one 299,792,458th of a second. But that doesn't really answer our question. It's just the physics equivalent of saying, "Because I said so."  [Read more] ...