Re: [SR] The traveler of Tau Ceti

Le 19/03/2024 à 20:44, "Paul B. Andersen" a écrit :

You have in another posting said that the traveller's clock
would show  τ = √(2⋅d/a) = 4.7764 y ,

That's actually what I said.

and the speed relative to
Tau Ceti would be Vr = a⋅t = 5.0279 ly/y when she passes the star.

 Absolutely.

Since it is experimentally confirmed that the speed relative
to the star never can exceed c, the theory you have used
to arrive at these predictions is obviously falsified.

 I beg you to understand something...
When I talk in Vr notation, I'm talking about real speeds (which can take any value).
You are talking about speeds observable in a frame of reference which is not that of the mobile, but that of the observer, and therefore you are talking about Vo.
It is very obvious, and I have never said the opposite in 40 years of explanations that I wanted to be consistent, that Vo could be greater than c.
It’s YOU who made me say it.
I never said that.
I implore you to show a little more humility when responding to me. To say "Doctor Hachel, you are an idiot, you don't know that we cannot exceed c", is to be both very extravagant, and above all very unhumble.
I would not allow myself to make such a stupid and humiliating remark to you.

 The "theory" is obviously Newtonian mechanics with Galilean relativity.

 Absolutely not.
 My concepts are ultra-relativistic.  Absolutely not newtonian, nor einsteinian.  R.H.