Re: [SR] Their proper times will necessarily be equal

Le 21/04/2024 à 23:47, Python a écrit :

Oh come on!
 There are only two events involved! One for when the travelers
departs and another one when they meet again.
 Hence a SINGLE time elapsed between these two events, as seen in any
frame of reference.
 You seemed to have, at least, understood this recently. It appears
you don't. You are insufferable.

Breathe in, exhale.
Breathe.
When Bella and Stella make their trip, they take the same amount of time. Everyone agrees on that.
The calculated time is the same for all physicists in the world, French, American, German, Spanish, English, and even Richard Hachel.
Here, 12,915 years old.
I call this time improper time because it does not correspond to the proper time of the two rockets and in any system of relativistic Axelian or Minkowskian calculations.
It goes without saying that it defines the time between the joint departure event of the two rockets and the joint arrival of the two rockets.
We have entered into tautology there.
R.H.