The easiest way to refute Einstein's relativity:

Consider a light source emitting a series of pulses the distance between which is d (e.g. d = 300000 km). A stationary observer (receiver) measures the frequency of the pulses to be f = c/d:

http://www.einstein-online.info/imag...ler_static.gif

The observer starts moving with speed v towards the light source - the measured frequency shifts from f = c/d to f' = (c+v)/d (Doppler effect):

http://www.einstein-online.info/imag...ector_blue.gif

Question: Why does the frequency shift from f = c/d to f' = (c+v)/d ?

Answer 1 (fatal for Einstein's relativity): Because the speed of the pulses relative to the observer shifts from c to c' = c+v.

Answer 2 (possibly saving Einstein's relativity): Because...

There is no reasonable statement that could become Answer 2.

Pentcho Valev