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Newsgroups: sci.physics.relativity
Subject: Re: "Time" vs "physical time"
From: nospam@de-ster.demon.nl (J. J. Lodder)
Reply-To: jjlxa31@xs4all.nl (J. J. Lodder)
Date: Thu, 8 Aug 2024 21:18:17 +0200
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Richard Hachel <r.hachel@jesauspu.fr> wrote:

> Le 08/08/2024 à 19:16, "Paul.B.Andersen" a écrit :
> >> R.H.
> > 
> > You claim that clocks in Norway and France are not synchronous
> > even if both show the time UTC + 2h because of the universal
> > anisochrony.
> > 
> > The question is about your anisochrony, so please read this and
> > answer the questions.
> > 
> > I leave Oslo Airport (Gardemoen Airport) when the watch on the airport
> > shows 12.00.00
> > I arrive at Paris Airport (Charles De Gaulle Airport) when the watch
> > on the airport shows 13.30.32.
> > 
> > The difference is T = 1h 30m 32s
> > Is this a real time, or is it impossible to know the real time
> > because of the universal anisochrony?
> > 
> > The distance in the ground frame between the airports is L = 1358.03 km.
> > Is the real speed of the plane in the ground frame v = L/T = 900 km/h,
> > or is it impossible to know the real speed of the plane because
> > of the universal anisochrony?
> > 
> > 
> > The question is simple:
> > Is it possible to calculate the real duration of the journey
> > by comparing the reading of the clock in Oslo at the departure
> > and the reading of the clock in Paris at arrival?
> > 
> > Yes or no, please.
> > 
> > I can understand why you find it very hard to answer
> > questions when they are taken from practical scenarios
> > in the real world, and not from your fantasy world.
> > 
> > Paul
> 
> No, it is not difficult to answer your question, it is simply not very
> practical.
> Discussing relativistic times with planes whose speeds are very Newtonian
> is quite difficult.
> Paris to Oslo and vice versa?

So it is evasions, rather than yes or no.
FYI, you failed the test.

> Can you reformulate your question using a vast underground tunnel between
> Paris and Oslo, in which we could launch particles at high speed from
> We assume that the length of the tunnel would be 1320 kms.
> L= 13.2.10^5m
> c=3.10^8m/s
> (1/c)=3.333ns/m
> There exists, between Paris and Oslo (the notion of universal present time
> being finally understood as ridiculous and abstract in any inertial frame
> of reference) a reciprocal delay of information, of real present of 
> universe, of ?To=4.44ms during a synchronization that nevertheless 
> appears perfectly established.

Your lack of physics knowledge is showing again.
Precisely this experiment has already been done,
between CERN and Gan Sasso, middle Italy, with high energy neutrinos.
(so no tunnel needed)
The atomic clocks at CERN and Gran Sasso were synchronised
by refering to the GPS sats that were visible simultaneously
from both places.

Does your peculiar physics predict a measured speed of c
for the highly relativistic neutrinos,
and if not, what else?

Jan