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From: "Paul.B.Andersen" <relativity@paulba.no>
Newsgroups: sci.physics.relativity
Subject: Re: Sync two clocks
Date: Sat, 24 Aug 2024 13:57:37 +0200
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Den 23.08.2024 18:52, skrev His Holiness Richard Hachel:
> 
> J'ai signalé à Paul où se trouvaient les erreurs, et même si la barrière 
> de la langue peut jouer, il est impossible qu'il ne comprenne pas ce que 
> je dis s'il faut l'effort de comprendre.

Translated by Google:
> I pointed out to Paul where the errors were, 
> and although the language barrier may play a role, 
> it is impossible for him not to understand what I am 
> saying if it takes the effort to understand. 

Since I have missed the posts where Richard Hachel
has pointed out my errors, I would like to know
which posts he has responded to, and found errors.

Was it this?

| Let's assume that both clocks show UTC + 2h within a second.

UTC clocks are synchronous in the ECI-frame,
but since the longitude of Oslo is ca. 8⁰ east of Paris,
the clocks will be ca. 3 ns out of sync in the ground frame.

So the clocks are synchronous within a second in the ground frame.

|
| I leave Oslo Airport (Gardemoen Airport) when the watch on
| the airport shows 12.00.00 ± 1 s
| I arrive at Paris Airport (Charles De Gaulle Airport) when
| the watch on the airport shows 13.30.32 ± 1 s.
| The difference is T = 1h 30m 32 ± 2 s
| The distance in the ground frame between the airports is
| L = 1358.03 ± 0.1 km
| v = T/L = 250.01 ± 0.11 m/s = 900.0 ± 0.4 km/h
|
| Question #1:
| ------------
| Is the time T = 1h 30m 32 ± 2 s
| the correct time (temporal interval) measured in
| the ground frame, between the events "Departure from Oslo"
| and "Arrival in Paris"?
|
| Question #2:
| ------------
| Is the speed v = 900.0 ± 0.4 km/h
| the correct speed of the aeroplane, measured in the ground frame?
|
|
| The point is that if the clocks in Oslo and Paris are not
| synchronous within a second, you have to answer "no" to both
| questions.
|
| So what are your answers to the simple questions?
|
| I bet you will keep fleeing. Chicken! 😂

But since you didn't flee, but pointed out the errors
in the post I missed, which errors did you point out?


-- 
Paul

https://paulba.no/