"Doppler effect -- when an observer moves toward a stationary source" https://www.youtube.com/watch?v=bg7O4rtlwEE

"Vo is the velocity of an observer moving towards the source. This velocity is independent of the motion of the source. Hence, the velocity of waves relative to the observer is c + Vo. [...] The motion of an observer does not alter the wavelength. The increase in frequency is a result of the observer encountering more wavelengths in a given time." http://a-levelphysicstutor.com/wav-doppler.php

So the speed of light relative to the moving observer is c'=c+Vo, and this is more than obvious. How can one test the obviously absurd alternative, c'=c (constant speed of light), postulated by Einstein's relativity?

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Pentcho Valev

In a sane science, the Doppler effect (moving observer: https://www.youtube..com/watch?v=bg7O4rtlwEE) would be regarded as a confirmation of two obvious facts:

1. The speed of the light pulses relative to the moving observer is c'=c+v, where v is the speed of the observer relative to the source.

2. The frequency at the moving observer is f'=c'/d, where d is the distance between subsequent light pulses.

In post-sanity (Einsteinian) science the result f'=c'/d is demonstrated explicitly but the result c'=c+v is always implicit when Doppler in LIGHT is discussed, camouflaged additionally by the so-called relativistic corrections.

Example: In explaining the Doppler effect (moving observer), at 6:09 in this video

https://youtu.be/MBuLTzj3CWA?t=369

Brian Greene derives the formula

𝛎_obs = 1/Δt' = γ(c-v)/λ

where 𝛎_obs is the frequency measured by the moving observer, γ is the Lorentz factor, c is the speed of the light relative to the stationary source, v is the speed at which the observer moves away from the source, and λ is the wavelength.

Accordingly, the speed of the light waves relative to the moving observer is

c' = λ(𝛎_obs) = γ(c-v),

in violation of Einstein's relativity.

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Pentcho Valev