Re: The Langevin's traveler

Le 02/08/2024 à 20:26, hitlong@yahoo.com (gharnagel) a écrit :

On Fri, 2 Aug 2024 14:35:52 +0000, Richard Hachel wrote:

In your example, when the rocket reaches its goal, we neglect
the short-term accelerations, Stella's watch marks 1969. It
crossed the 12 ly in 9 years of proper time.
But the terrestrial watch FOR the earth marks 1987!!!

 Nope.  The ship started from Earth in 1960 going 0.8c.  It
traveled 12 LYrs, so according to Earth time it would take
12/.8 = 15 years.

You are wrong, because you are reasoning in Newtonian mode, or at best, Minkowskian.
I asked you to breathe and blow, which meant that there was bound to be some heavy stuff, and you seem not to have understood it.
When you boast of being the world's best specialist in special relativity (from uniform Galilean frames of reference to uniformly accelerated frames of reference, including rotating frames of reference) you can well imagine that you cannot make such a gross error as saying that the rocket will arrive in 1987, after 27 years of travel.
However, this is what I confirm.
It is therefore notorious that the error is on your side.
It is obvious that either you have not read what I say about the theory and why I say it, or you have not understood anything at all.
So I repeat: you are making a conceptual mistake somewhere, and I implore you to have two or three cups of coffee, to reread what I said about universal anisochrony and the internal dilation of chronotropies.
You will perhaps understand why I am right, and why the entire universe should think like me.
What I say is very important, because it is only a small part of the revelation of the concept. And if you do not make the effort to assimilate
(I do not ask you to believe, but only to assimilate) what I say, you will have real problems when I will post the same comics, not for Terrence, but for Stella, and then it will be even more difficult to admit.
It will nevertheless be the perfect truth.
R.H.