Variable Speed of Light, Einsteinians!

The speed of light is variable, not constant, and this has been confirmed in the simplest possible way - by measuring the Doppler frequency shift. Consider the following setup:

A light source emits a series of pulses equally distanced from one another. A stationary observer (receiver) measures the speed of the pulses to be c and the frequency to be f=c/d, where d is the distance between the pulses:

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

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

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

The following formula is correct:

f' = c'/d

where c' is the speed of the pulses as measured by the moving observer. Clearly,

c' = c + v.

That is, the speed of the pulses varies with the speed of the observer, in violation of Einstein's relativity. Any correct interpretation of the Doppler effect unavoidably leads to the same conclusion:

http://www.einstein-online.info/spotlights/doppler
Albert Einstein Institute: "In this particular animation

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

which has the receiver moving towards the source at one third the speed of the pulses themselves, four pulses are received in the time it takes the source to emit three pulses." [end of quotation]

Since "four pulses are received in the time it takes the source to emit three pulses", the speed of the pulses relative to the receiver (observer) is greater than their speed relative to the source, in violation of Einstein's relativity.

Pentcho Valev