[renormalised (Carl)]

Originally Posted by CraigS

When the speed of light depends on its direction:

Paper here.



.. depends on the environment through which the light travels .. and 'space' is filled with EMFs .. the conditions/assumptions under which the question is framed, make all the difference.

Cheers

It was also measured in a gas, which would be far denser even than the dustiest and gassiest nebula. Despite its appearance space is not that full of gas and such. Not only that...how intense was the EMF they tested this under?? Space is full of EMF's but they're spread awfully thinly (remember the strength of a galaxy's average field)...how strong does it have to be before it starts affecting the velocity of the light traveling through it. As we've said ourselves countless times, it's one thing to get a measurement in a lab, an entirely different thing to measure it in "real" life.