Given the formula

(frequency) = (speed of light)/(wavelength),

Einstein's 1905 constant-speed-of-light axiom implies that ANY frequency shift entails (is caused by) an inversely proportional wavelength shift. In particular, the motion of the observer (receiver) must idiotically change the wavelength of the incoming light (or the distance between light pulses) - otherwise the speed of light is not constant:

https://youtube.com/watch?v=bg7O4rtlwEE

Sometimes Einsteinians extend the idiocy beyond light - here it is applied to sound waves:

https://bretagnemontagne.files.wordp...2011/02/23.jpg

If there is a next, Einstein-free version of fundamental physics, Einstein's 1905 nonsensical axiom

"The speed of light is constant"

will be replaced with the easily justifiable axiom

"For a given emitter, the wavelength of light is constant".

I have developed the idea in a series of tweets he https://twitter.com/pentcho_valev

Pentcho Valev