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From: Thomas Heger <ttt_heg@web.de>
Newsgroups: sci.physics.relativity
Subject: Re: Langevin's paradox again
Date: Fri, 12 Jul 2024 08:11:26 +0200
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Am Donnerstag000011, 11.07.2024 um 13:14 schrieb J. J. Lodder:
> Richard Hachel <r.hachel@wanadou.fr> wrote:
> 
>> Langevin's paradox.
>> The Langevin paradox is a very serious criticism against the theory of
>> relativity. Unfortunately, the canonization and divinization of Albert
>> Einstein as the new son of God on earth (it was excessive in both
>> substance and form) completely obscured the problem, and we only saw
>> dozens high-level theorists were right against him, and that their
>> grievances were audible.
> 
> Here you have Langevin (seated in front of the blackboard)
> with Einstein and Ehrenfest.
> You can see how devastated Einstein is at his theory
> having been destroyed by Langevin, can't you?
> <https://en.wikipedia.org/wiki/Paul_Langevin#/media/File:EinsteinEhrenfestKamerlingh-OnnesWeiss.jpg>
> 
> BTW, Einstein is on record as having praised Langevin
> as 'the only Frenchman who understands relativity'.
> Langevin started lecturing on relativity in 1910.

I had assumed, that Einstein spoke French very well.

He had several other opportunities to speak French.

E.g. the works of Poincaré were written in French and seemingly Einstein 
knew them.

He had attended the 'Solveig Conference' which was held in French.

Einstein had also a number of contacts to people speaking French, like:

Marie Curie
Langvin
George Lemaitre

But when did he learn French?

He had no particular talent for foreign languages, which can be seen at 
his very poor perfomance in English, after ten years in Princton!!

So: where, when and why did he learn French?

My current 'work hypothesis' goes like this:

he was actually Swiss citizen from birth and born in the west of 
Szwizzerland, were they speak German and French.

And possibly his CV was a complete fake and his name wasn't Einstein and 
he was possibly not even a Jew (which is why he declined the presidency 
of Israel).


TH