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From: Thomas Heger <ttt_heg@web.de>
Newsgroups: sci.physics.relativity,sci.physics,sci.math
Subject: Re: ? ? ?
Date: Tue, 12 Mar 2024 09:30:34 +0100
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Am 10.03.2024 um 11:35 schrieb Maciej Wozniak:

>>>>
>>>> GPS is pyhsically connected to the Earth, hence 'lives' in the same
>>>> 'time-domain' (uses Earth time).
>>>
>>> What is the range of Earth time, then?
>>
>> If timer is local (opposite to 'universal'), than Earth time is valid
>> on Earth or nearby.
>
> So - for every observation made from Earth or nearby?

No: time is local everywhere.

The set of all places, which could use the same time are called 'time 
domaine' (in my 'book').

This is the case for all places on the surface of planet Earth.

Other places have other times, which is not necessarily parallel.

Extreme cases are places, where time runs backwards (from our perspective).

Also places are possible, where matter radiates (in our view), while 
remains usual matter, if seen in the own frame of reference.

>>> What kind of object does use time?
>>
>> I regard matter as 'timelike stable patterns'.
>
> 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'), time enters into the picture, if we have material objects.

All material objects within a certain 'time domain' build the set of 
material objects, which an observer in that 'time domaine' would regard 
as real (material).

Material objects from other time domains (with their axis of time in a 
an angle) the obverer would percieve as radiation (or not at all).

(This 'ghost-like' behaviour of matter from other worlds makes this 
concept a little difficult to accept.)


TH