Re: Relativism Killer

On Sun, 13 Jul 2025 21:22:48 +0000, guido wugi wrote:

Op 12/07/2025 om 5:55 schreef LaurenceClarkCrossen:
>

According to relativity the relative speed of light does not include the
relative speed of the observer so the observer finds the speed of light
relative to him to be C even if he is moving towards or away from the
source. This is not true of either particles or waves and is so
illogical as to be irrational and utterly stupid.

>
Funny though it be, constancy of light speed still baffling intelligent
people even nowadays is demonstrated by you (supposing you are that:).
Yet the truth and necessity of it are also accessible to highschool
teenagers. There are even nice intuitive axiomatic approaches to SRT,
where "c-o-l-s" doesn't need to be imposed as a counterintuitive
postulate, but where it follows kindly as a corollary, a provable
result. Mine for instance wugi's interactive relativity
<https://www.wugi.be/srtinterac.html>.

We could steel-man Einstein's second postulate as meaning that an
observer at the interferometer of the MMX would always find the speed of
light to be invariant. That is for a round trip with the observer
stationary within the IRF. That does not mean the relative speed of
light observed by a moving observer is invariant.