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From: Thomas Heger <ttt_heg@web.de>
Newsgroups: sci.physics.relativity,sci.physics,sci.math
Subject: Re: ? ? ?
Date: Sun, 17 Mar 2024 07:55:08 +0100
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Am 14.03.2024 um 09:42 schrieb Maciej Wozniak:
> W dniu 14.03.2024 o 08:24, Thomas Heger pisze:
>
>>>>> I don't give a damn to it. So, what kind of objects
>>>>> does use time? Does a rock do? What for?
>>>>>
>>>>
>>>>
>>>> 'timelike stable' is a requirement, which all material objects have to
>>>> fullfil.
>>>
>>>> Since 'timelike stable' requires time (actually a certain 'axis of
>>>> time')
>>>
>>> So, a rock is using time to be "timelike stable".
>>> How does it use it?
>>> And what is this "time" of yours? Are UTC, TAI, a zone
>>> time - times, or are they something else?
>>>
>>
>> I regard matter (e.g. particles) as 'timelike stable patterns' (of/in
>> spacetime).
>>
>> Rock is more a crystal than a particle, what is an ensamble of atoms.
>>
>> A particle is modelled as 'timelike stable' because this would alllow a
>
>
> Modelled by a rock, or modelled by us?
> Who or what is using "time" concept  here?
??

Natur is not a modell, but the thing, which we like to modell.

Modells are necessarily simpler than the real thing, because otherwise 
they are simply unusable.


> So, are UTC, TAI, zone times - times? Or
> are they something else?

Time zones are something else.

a 'time domaine' is a set of places, where the same clocks can be used 
and permanently show the same time, once they are synchronized properly.

This is the case for all clocks around the Earth at the same hight above 
mean sea level.

Time zones are just for convinience, to allow same time of sunrise.

But that makes clocks show different times and disallows synchronization.

TH

TH