We assume that the Sun-Tau Ceti system is stationary.
We set x=12 light years.Thanks to new technology, we use a comfortable acceleration of a=10m/sยฒ (a=1.052ly/yยฒ).
W dniu 21.03.2024 oย 21:07, Paul B. Andersen pisze:
The observers measure obviously the real speed of the rocket!
The observers inhabit the real world, not Wonderland.
Sorry, poor trash, the observers you're mumbling about absolutely
inhabit a wonderland. The observers from the real world have nothing in common with them.
Le 27/03/2024 ร 13:24, "Paul B. Andersen" a รฉcrit :
Don't you think the physicists at CERN had noticed the difference? :-D
But maybe you were joking.In that case you had me!
CERN physicists are doing their job. We have accustomed them to working
at classic relativistic speed (useful but false). So it makes sense that
they find the speed they expect. I tell them that the proton rotates 78 million times per second, They tell me no.
On 3/27/2024 8:25 AM, Paul B. Andersen wrote:
Don't you think the physicists at CERN had noticed the difference? :-DIt appears "Dr." Hachel stumbled across the physics concept of
But maybe you were joking. In that case you had me!
"rapidity". Rapidity is related to speed but isn't a speed. It is
related to speed by r = arctanh(v/c) where v is the velocity. The
rapidity of light is infinity. AFAIK, rapidity is used sometimes to
simplify the math. For example, rapidities of two objects in one
dimensional motion can be just added but velocities need the Einstein velocity addition formula.
Le 28/03/2024 ร 14:56, "Paul B. Andersen" a รฉcrit :
Physicists measure the momentum to be mโ vโ ฮณ and the energy to be mโ cยฒโ ฮณ
where v is the speed and ฮณ = 1/โ(1โvยฒ/cยฒ).
Exactly as predicted by SR.
You think I don't know that? ? ? Paul, I beg you to be a little more
serious.
Gay macron
Le 28/03/2024 ร 23:19, Tom Roberts a รฉcrit :
On 3/27/24 12:07 PM, Volney wrote:
Rapidity is related to speed but isn't a speed. It is related to speed
by r = arctanh(v/c) where v is the velocity.
Yes. It is the hyperbolic angle of rotation in a space-time plane due
to relative velocity v (Minkowski geometry). Just like \theta is
typically the angle of rotation in a space-space plane (Euclidean
geometry). Tom Roberts
No. LOL. "Rapidity is related to speed but isn't a speed"
On 3/28/2024 7:06 AM, Richard Hachel wrote:
Je ne vois pas l'intรฉrรชt de ton intervention.Why are you asking us 'Have you ever wondered why you can't taste your tongue?'
J'attends toujours tes excuses pour ton comportement stupide sur le
description du voyageur de Langevin en vitesses apparentes, et pourquoi
la formule Vapp=Vo/(1+cosยต.Vo/c) ne fonctionne que pour l'aller et pas
pour le retour. R.H.
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