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From: Python <python@invalid.org>
Newsgroups: sci.physics.relativity
Subject: Re: Sync two clocks
Date: Tue, 20 Aug 2024 14:01:26 +0200
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Le 20/08/2024 à 13:27, M.D. Richard "Hachel" Lengrand a écrit :
> Le 20/08/2024 à 13:13, Mikko a écrit :
>>>
>>> I have explained these things a hundred times.
>>> It is impossible to synchronize two watches A and B located in 
>>> different places.
>>
>> 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.