- #1
giulio_hep
- 104
- 6
I need some help in defining what are the assumptions needed to derive a constant speed of light from Maxwell equations.
Is it correct to say that this result applies to a sinusoidal wave as an assumption? In my understanding that is (more or less) equivalent to planar waves in vacuum: is it another way to define the context of this derivation?
Sorry, a final doubt: I've read that Maxwell equations say nothing about other frames of observation, so the invariance of speed from this point of view is a postulate of special relativity, not a consequence of Maxwell equations... my question is: have there been any new (more modern) experimental tests related to this postulate in the last couple of years? (found some recent articles in the web about CMB and variable speed of light theories)
Is it correct to say that this result applies to a sinusoidal wave as an assumption? In my understanding that is (more or less) equivalent to planar waves in vacuum: is it another way to define the context of this derivation?
Sorry, a final doubt: I've read that Maxwell equations say nothing about other frames of observation, so the invariance of speed from this point of view is a postulate of special relativity, not a consequence of Maxwell equations... my question is: have there been any new (more modern) experimental tests related to this postulate in the last couple of years? (found some recent articles in the web about CMB and variable speed of light theories)