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From: Richard Hachel <r.hachel@liscati.fr.invalid>
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Le 01/01/2025 à 21:06, clzb93ynxj@att.net (LaurenceClarkCrossen) a écrit 
:
> Albert Einstein, “What Is The Theory Of Relativity?” (November 28, 1919)
> 
> In the London Times, Einstein explained this fact about his theory:
> 
> "The second principle, on which the special theory of relativity rests,
> is the "principle of the constant velocity of light in vacuo." This
> principle asserts that light in vacuo always has a definite velocity of
> propagation (independent of the state of motion of the observer or of
> the source of the light). The confidence which physicists place in this
> principle springs from the successes achieved by the electrodynamics of
> Maxwell and Lorentz."
> 
> The velocity of waves does not include the velocity of the source
> because compression waves are formed, constraining the speed to that
> dictated by the medium.
> 
> The velocity of both particles and waves includes that of the observer.
> 
> To deny that light velocity involves that of the observer is stupid,
> illogical, and irrational nonsense. It is a denial of relative motion
> itself.

I see that you still do not understand the theory of relativity.
This is very unfortunate, and I feel like I am unfortunately speaking into 
the void.
The second postulate of Poincaré (and not of Einstein who NEVER 
postulated anything at all except copied the work of others) proposes 
something A PRIORI.
It is a postulate.
It postulates that the speed of light in a vacuum is invariant by change 
of reference frame, which poses a double problem.
It is both true and false physically, and, secondly, it is a postulate and 
a postulate does not say why.

We do not have this double problem with Dr. Hachel.

In Hachel, who is very mean, not only is the postulate obviously derived 
from another postulate that explains WHY (the notion of universal 
anisochrony and the relativity of hyperplanes of simultaneity in the same 
stationary frame of reference) but moreover,
it explains that it is the transverse speed of light that is invariant, 
and equal to c in all frames of reference.

I remind you, breathe, blow, do not feel unwell, that each observer, in 
Hachel, observes his universe live. It then becomes obvious that a light 
ray is instantly perceived by any receiver (it could be my retina), and 
that this speed (infinite) remains so by change of frame of reference (it 
is me who moves), or whatever the speed of the source.

On the other hand, if a photon flees me, I would always see it flee in the 
same way, and at the same speed (Vapp=c/2).

And this in whatever frame of reference I am in.

Which means that the transverse speed of a photon will always be equal to 
c, whatever frame of reference I am in (even if I am in a uniformly 
accelerated frame of reference).

The transverse speed of light will become a physical invariant.

So there is some truth and some falsehood in what physicists say.

They do not say that we observe the universe live, and believe that this 
galaxy which is 13 billion light years away (notion of distance) existed 
thirteen billion years ago (notion of time).

They do not understand that 13 billion years is a value given by a 
geometric position of a distant observer who would observe the path of the 
photon transversely, but that it has nothing to do with my retinal 
hyperplane of simultaneity.

They are absolutely incapable of passing Cape Hachel, and again, they 
passed Cape Poincaré with some difficulty (they understand the notion of 
relativity of the internal chronotropy of watches) but, and this is for me 
an extraordinary phenomenon, even miraculous, the notion of anisochrony 
and correct spatio-temporal geometry.

They remain stuck in a completely abstract and mathematically stupid 
Minkowskian block, and are incapable of seeing further.

This has always amazed me.

R.H.