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Subject: Re: "Time" vs "physical time"
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Date: Thu, 08 Aug 24 17:55:04 +0000
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From:  Richard Hachel   <r.hachel@jesauspu.fr>
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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.
Can you reformulate your question using a vast underground tunnel between 
Paris and Oslo, in which we could launch particles at high speed from 
Paris to Oslo and vice versa?

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 ΔTo=4.44ms during a synchronization that nevertheless 
appears perfectly established.

R.H. 
R.H.