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From: Mikko <mikko.levanto@iki.fi>
Newsgroups: sci.physics.relativity
Subject: Re: Incorrect mathematical integration
Date: Mon, 22 Jul 2024 14:25:47 +0300
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On 2024-07-21 20:34:25 +0000, Richard Hachel said:

> Le 21/07/2024 à 21:26, "Paul.B.Andersen" a écrit :
> 
>> You have said strange statements about synchronisation of clocks.
> 
> Clock synchronization.
> 
> I have already told you hundreds of times over the past 40 years that 
> it is impossible to synchronize two clocks placed in different places.
> 
> If I place a very precise atomic clock, one on this bench, one on this 
> table, the other on the mantelpiece, I could never synchronize them 
> absolutely, because it is impossible and an abstract representation of 
> the notion of simultaneity of present time.
> 
> In the best case of my synchronization, each watch will delay the other 
> by t=x/c unavoidable, universal, physical delay.
> 
> We will say: “How does GPS work?”
> 
> GPS works on the idea of ​​an abstract point, located outside our 
> universe, and placed orthogonally and ideally almost to infinity, such 
> that an impulse coming from it will be returned to it at the same time 
> by all the components of our universe.
> 
> It is on such an “ideal and abstract” point that GPS works, giving the 
> illusion of a real universal present time.

How does GPS implement that idea?

-- 
Mikko