2 ms·
As a slightly-related follow-on, see http://en.wikipedia.org/wiki/Cherenkov_radiation http://en.wikipedia.org/wiki/Cherenkov_radiation for a nice example of wha
by carbocation 16y ago
As a slightly-related follow-on, see http://en.wikipedia.org/wiki/Cherenkov_radiation http://en.wikipedia.org/wiki/Cherenkov_radiation for a nice example of what happens in the case of a charged particle moving through a medium more quickly than the speed of light in that medium.