Albert Einstein Institute: "...Doppler...the receiver moving towards the source...the distances between subsequent pulses are not affected, but still there is a frequency shift..."
http://einstein-online.info/spotlights/doppler.html
This entails that the speed of the light pulses relative to the receiver VARIES, in accordance with the formula
(frequency) = (speed of pulses)/(distance between pulses)
This particular variation of the speed of light is obvious:
https://www.youtube.com/watch?v=bg7O4rtlwEE
See more here:
https://twitter.com/pentcho_valev
Pentcho Valev
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