Re: Langevin's paradox again

Le 10/07/2024 à 14:25, Richard "Hachel" Lengrand a écrit :

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For Paul, the logic is different, he is not here to have fun, he wants to know and teach, but the problem is that he does it very badly.

He does it very well, and has a lot of fun too.

1. Subject B accelerates over one light year, spends 8 years in Galilean motion, then reaccelerates over one light year according to a=2ly/y²
and if
2. Subject B accelerates two light years, then spends 8 years in Galilean motion, regaining the speed it had after one light year of travel?
 For Richard Hachel, proper times will be equal

This is a direct violation of the principle of Relativity as me (and
others) have demonstrated numerous times.