Re: Sync two clocks

Le 20/08/2024 à 13:27, M.D. Richard "Hachel" Lengrand a écrit :

Le 20/08/2024 à 13:13, Mikko a écrit :

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I have explained these things a hundred times.
It is impossible to synchronize two watches A and B located in different places.

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So you agree that Paul B. Andersen's prodedure is doable and achieves
what you call "impssible".

 You have to understand the words and concepts, and in relativistic theory, this is very poorly done. There is no theory in the world that is so poorly explained, and the fact that some people think they understand it, when they only possibly understand how to do the equations (and again, I am amazed at the enormous errors made on proper times and instantaneous observable speeds in accelerated frames of reference, the misunderstandings in Langevin in apparent speeds and the madness of rotating frames of reference) does not really help the dissemination of a theory that is both beautiful and true, which I have been trying to do (under idiotic laughter) for 40 years, with, nevertheless, some great personal successes.
 As for Paul's or Python's synchronization procedure, I'm not saying it's wrong, or useless. On the contrary, it's very useful for giving a coherent and practicable universal time.
It's just that it's only true for an imaginary, abstract observer, who, placed far away and in an ideal fourth dimension, synchronizes the entire universe on itself, with the particularity, for him, of considering that all movements can ONLY be transversal, including the movements of information which then take the value c in all directions.
What I mean is that two watches set according to this procedure each advance on the other by an artificial and false value which is AB/c.

This means that your synchronization criteria is broken. That's all.
While Einstein-Poincaré's criteria is NOT broken.
End Of Story.