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From: "Paul.B.Andersen" <relativity@paulba.no>
Newsgroups: sci.physics.relativity
Subject: Re: Langevin's paradox again
Date: Mon, 15 Jul 2024 20:19:26 +0200
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Den 15.07.2024 15:10, skrev Richard Hachel:
> Le 15/07/2024 à 14:57, "Paul.B.Andersen" a écrit :
> 
>> The scenario is:
>>
>> Terrence is inertial.
>> Stella passes Terrence with the speed 0.8c relative to Terrence.
>> At the instant when Stella is adjacent to Terrence they both set
>> their clocks to zero, and Stella starts her rocket engine so that
>> she accelerates at the constant acceleration c per year (≈ 0.97g)
>> towards Terrence.
>> Some time later, Stella will again pass Terrence at the speed 0.8c.
>>
>> The only question I want answered is:
>> What do Stella's clock and Terrence's clock show
>> at the instant when Stella passes Terence the second time?
> 
> But it's a very simple question.
> Why don't you do it to show me you understand?
> 
> R.H.

I can only give you the answer according to SR.
You will find all the equations and the method to
solve the problem here:
https://paulba.no/pdf/TwinsByMetric.pdf

But you have told me that SR doesn't give the right answer
when acceleration is involved, so please give the answer according
to your corrected equations.

Or are you telling me that the greatest relativistic physicist
in the universe (Doctor Richard Hachel) is unable to answer
the simple question?

-- 
Paul

https://paulba.no/