Re: Langevin and Doppler effects...

Le 07/09/2024 à 00:12, tomyee3@gmail.com (ProkaryoticCaspaseHomolog) a écrit :

On Thu, 5 Sep 2024 21:45:22 +0000, Richard Hachel wrote:
 

We just have to not be afraid, and have a playful spirit.

 There is no contradiction.

 Terrance receives the exact number of beeps that Stella has transmitted.

 

Stella receives the exact number of beeps that Terrance has transmitted.

Absolutely.
In 18 years, Stella has pulsed 18*12=216 times.
In 30 years, Terrence has pulsed 30*12=360 times
During the trip, it is impossible for beeps to have been lost, neither for Terrence nor for Stella.
Everything is of a sumptuous obviousness and a great relativistic clarity.

 This is TRIVIAL to demonstrate using a spacetime diagram.

 Oh no please, please no, I beg you...
 No satanic spacetime diagram... Please...pleasa... No....

No matter what path through spacetime Stella follows, this must be true.
 Don't bother with my table. Just LOOK at my Figure 4-4.
https://en.wikipedia.org/wiki/Special_relativity#Twin_paradox

 Irrelevant.
 Is not my question.
 My question is: Stella sees Terrence in her ultra-powerful telescope moving away from her with an apparent speed of 0.4444c, and for 9 years.
Is it true, or is it not true?
On the way back, for 9 years, she sees Terrence coming back to her for 9 years, with a speed of 4c.
Is it true or is it not true?
If it is true why not say it?
In his human trickery, man is very intelligent, he intuitively KNOWS that he cannot say it.
If he says: it is false. He makes a fool of himself.
If he says: it is true, he knows that we will answer, and what distance does the earth travel in both cases?
And this is frankly intolerable for relativistic believers who see their God naked, and his two laughable German prophets.
R.H.