https://en.wikipedia.org/wiki/Relati...Doppler_effect
"Assume the observer and the source are moving away from each other with a relative velocity v (v is negative if the observer and the source are moving towards each other). Considering the problem in the reference frame of the source, suppose one wavefront arrives at the observer. The next wavefront is then at a distance λ=c/fs away from the observer (where λ is the wavelength, fs is the frequency of the wave the source emitted, and c is the speed of light)."

The observer measures the frequency to be

fo = fs(1 - v/c),

and the speed of the light relative to the observer is, accordingly,

c' = λ.fo = c - v,

in violation of Einstein's relativity.

It is easy to see that the "relativistic time dilation" introduced in the Wikipedia article does not change the conclusion that the speed of the light relative to the observer is different from the speed of the light relative to the source. Einsteinians will have to admit that the Doppler effect, relativistic or not, refutes Einstein's relativity. No more hamburgers:

http://s8int.com/images9/eistein.jpg

Pentcho Valev