- #36
Jimmy Snyder
- 1,127
- 20
If it worked that way, then some photons would arrive ahead of others.khemist said:I believe DaveC was the one to post in my thread a while back so he would probably be a better person to elaborate.
Say a photon moves through a dense cloud of gas. From what I understand, the time it takes the photon to traverse through the cloud will be less than the time it would take the photon to travel the same distance, because the photon is constantly being absorbed by the electrons and re-emitted, which takes a finite amount of time. This delay will slow the "speed" of light down, though the velocity it has in between the atoms is c.