- #1
mjacobsca
- 98
- 0
Often times I read in these forums that the sped of light is C in a vacuum, but is slower in non-vacuum environments. Every time I read this, I wonder if it is a misstatement. Doesn't light always travel at C, but gets interrupted by being absorbed and re-emitted countless times by intervening particles? The way I understand it, the photon travels at C, gets absorbed and/or stopped by a particle, then gets emitted, traveling at C to the next stop, emitted, C, and so on. So while light may propagate slower than C, the photons themselves never travel slower than C. Is this a correct statement?