﻿ Einstein's Relativity Based on Obvious Falsehood
Discussion:
Einstein's Relativity Based on Obvious Falsehood
(trop ancien pour répondre)
Pentcho Valev
2018-02-05 09:47:30 UTC

"...four pulses are received in the time it takes the source to emit three pulses." http://www.einstein-online.info/spotlights/doppler.html

That is:

The speed of the light pulses relative to the source is c = 3d/t, where d is the distance between the pulses and t is "the time it takes the source to emit three pulses".

The speed of the pulses relative to the moving receiver is c' = 4d/t > c, in violation of Einstein's relativity.

Pentcho Valev
Pentcho Valev
2018-02-06 08:28:02 UTC
The observer starts moving towards the light source. The wavecrests start hitting him more frequently - the frequency he measures increases - which means that the speed of the wavecrests relative to the observer increases as well, in violation of Einstein's relativity:

"Doppler effect - when an observer moves towards a stationary source. ...the velocity of the wave relative to the observer is faster than that when it is still."

"Let's say you, the observer, now move toward the source with velocity Vo. You encounter more waves per unit time than you did before. Relative to you, the waves travel at a higher speed: V' = V+Vo. The frequency of the waves you detect is higher, and is given by: f' = V'/λ = (V+Vo)/λ." http://physics.bu.edu/~redner/211-sp06/class19/class19_doppler.html

"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

There is an ad hoc assumption that saves Einstein's relativity but it is idiotic: When the initially stationary observer starts moving towards the light source with speed v, his motion somehow changes the wavelength of the incoming light - from λ to λ'=λc/(c+v). The idiocy is too great, even for the standards of post-truth science, so Einsteinians don't discuss it explicitly. Here are exceptions (those Einsteinians teach that the motion of the observer changes the wavelength even in the case of sound waves!):