On Nov 3, 5:10 am, wrote:
light movement in a media cannot be treated as free photon movement in
vacuum.
The reason for that is that in a media photons get re-emitted over and
over again.
And for example in the water flow between the re-emittions the actual
carriers of "the moving light" are excited atoms that do flow with the
flow hence the dependance of the speed of light on the water flow speed

Why don't they recall all food worldwide and kill everybody?