Groups > sci.physics.relativity > #671608

Re: How is time really organized

From	Julio Di Egidio <julio@diegidio.name>
Newsgroups	sci.physics.relativity, sci.math
Subject	Re: How is time really organized
Date	2026-07-23 15:54 +0200
Organization	A noiseless patient Spider
Message-ID	<113t6dr$3qmim$1@dont-email.me> (permalink)
References	(5 earlier) <18c408b1ff54fcc6$1355681$260416$c2065a8b@news.newsdemon.com> <113r323$36hds$1@dont-email.me> <18c4b5cd14cde5c5$1440186$260416$c2065a8b@news.newsdemon.com> <113svhk$3q8of$1@dont-email.me> <113t2u5$2hon6$1@news.nntp4.net>

Cross-posted to 2 groups.

Show all headers | View raw

On 23/07/2026 14:54, Barton Valetov wrote:
> Paul B. Andersen wrote:
> 
>> An event (point in time and space) does not depend on the arbitrary
>> choice of coordinate system in which it is defined. I chose to use a
>> geocentric coordinate system, but I might equally well have chosen to
>> use a heliocentric coordinate system,
>> or a local coordinate system with my desk as origin.
>>
>> The event is unique, and it is meaningless to call it geocentric',
>> 'heliocentric' or 'desk-centric'.
> 
> yes, but it supposes you have another event as reference, both in time and
> space, otherwise there are no events

Or, said more technically, position is a torsor,
and needs a coordinate system to become a number:
only distance is independent of coordinates.

Julio

Thread

How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-17 13:36 +0200
  Re: How is time really organized Natividad Ślusarski <rsi@val.pl> - 2026-07-17 12:10 +0000
    Re: How is time really organized Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2026-07-18 00:40 +0200
      Re: How is time really organized Cale Balabuha <eah@baal.ru> - 2026-07-17 23:04 +0000
      Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-18 06:34 +0200
        Re: How is time really organized "Paul B. Andersen" <paul.b.andersen@paulba.no> - 2026-07-19 10:44 +0200
        Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-19 15:55 -0700
          Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-20 06:18 +0200
        Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-20 07:39 +0200
          Re: How is time really organized Ivo Balakirev <vaovb@kkrea.ru> - 2026-07-20 10:12 +0000
            Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-22 08:36 +0200
          Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-20 10:44 -0700
            Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-23 07:26 +0200
              Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-23 09:26 -0700
                Re: How is time really organized Fayv Bakharev <kerv@aaaah.ru> - 2026-07-23 18:10 +0000
                Re: How is time really organized Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-23 15:16 -0700
      Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-20 07:37 +0200
        Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-20 08:28 +0200
          Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-22 08:28 +0200
            Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-22 09:41 +0200
              Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-23 07:33 +0200
                Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-23 07:52 +0200
        Re: How is time really organized "Paul B. Andersen" <paul.b.andersen@paulba.no> - 2026-07-20 13:13 +0200
          Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-20 17:21 +0200
            Re: How is time really organized "Paul B. Andersen" <paul.b.andersen@paulba.no> - 2026-07-22 20:44 +0200
              Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-22 22:14 +0200
                Re: How is time really organized "Paul B. Andersen" <paul.b.andersen@paulba.no> - 2026-07-23 13:56 +0200
                Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-23 14:45 +0200
                Re: How is time really organized "Paul B. Andersen" <paul.b.andersen@paulba.no> - 2026-07-24 12:02 +0200
                Re: How is time really organized Maciej Woźniak <mlwozniak@wp.pl> - 2026-07-24 12:41 +0200
                Re: How is time really organized Barton Valetov <btaovl@lln.ru> - 2026-07-23 12:54 +0000
                Re: How is time really organized Julio Di Egidio <julio@diegidio.name> - 2026-07-23 15:54 +0200
                Re: How is time really organized Ross Finlayson <ross.a.finlayson@gmail.com> - 2026-07-23 08:31 -0700
          Re: How is time really organized Thomas Heger <ttt_heg@web.de> - 2026-07-22 08:41 +0200
            Re: How is time really organized "Paul B. Andersen" <paul.b.andersen@paulba.no> - 2026-07-22 20:59 +0200
              Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-22 15:48 -0700
        Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-22 15:05 -0700
          Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-22 15:16 -0700
          Re: How is time really organized The Starmaker <starmaker@ix.netcom.com> - 2026-07-22 15:21 -0700
          Re: How is time really organized Dolph Bazulev <vblpb@vuu.ru> - 2026-07-23 21:16 +0000

csiph-web