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Re: The problem of simultaneity

From Thomas Heger <ttt_heg@web.de>
Newsgroups sci.physics.relativity
Subject Re: The problem of simultaneity
Date 2025-10-15 09:44 +0200
Message-ID <ml91d0F3casU1@mid.individual.net> (permalink)
References (8 earlier) <060gekl54bg39ffaaa16hv5p0eklnk3ah4@4ax.com> <mkuecdF5g7gU16@mid.individual.net> <LTL5R06ZZHzFv-F-2xx4FpjgHEE@jntp> <ml3ihhF2j2qU1@mid.individual.net> <IQcHQ.52846$7E53.19542@fx13.ams4>

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Am Montag000013, 13.10.2025 um 21:59 schrieb Paul B. Andersen:
> Den 13.10.2025 07:59, skrev Thomas Heger:
>>
>> I meant that time is always an interval, while Einstein thought about 
>> time as linear and countable.
> 
> So according to Thomas Heger it is impossible to say what
> the time is now. :-D

in a way..

Since nature does not provide little calendars, we have no 'absolute 
anchor' in time.

The 'big-bang' was actually assumed to provide such a zero point in 
time. But the big-bang-theory is most likely wrong.

Therefore, the universe does not have a beginning in some sort of 
explosion and also does not provide 'linear' (calendar like) timelines.

The 'real deal' is actually complicated and so counter-intuitiv, that 
not too many people understand this idea.


You should think about the axis of time as imaginary and the axes of 
space as real.

But both are more or less the same and the axis of time could be rotated 
into space by a multiplication with i.

This would create the impression of a 'big-bang'.

But that isn't creating an entirely new universe, but a new subset of 
the real universe, which we cannot see.

> 
> What the display on a 'clock' shows is a 'point in time'.
> 
> I can say that the 'time' now is October 13, 2025, 14:34:32 CET
> That's 'a point in time'.
> 
> If I left my home at   t1 = October 13, 2025, 7:05:10 CET
> and arrived at work at t2 = October 13, 2025, 7:59:50 CET
> Then I can say that the 'time' I used to walk to work today
> was 54 minutes and 40 seconds.  (Δt = t2 - t1)
> That's a duration (or 'interval').
> 
> So "time" can be both 'a point in time' and a duration.

No: a point in time is also a duration, but where the reference point (= 
the beginning of the interval) is assumed to be known already.

>> But usually we use some starting point as reference, while often that 
>> isn't mentioned.
> 
> The 'starting point' is obviously 'the point in time' at
> the beginning of the duration in question.
> 
> If we are only interested in durations, we may choose to
> use a clock we can set to zero at any time.
> 
Sure, that's correct.
TH

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The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-01 00:46 +0000
  Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-01 07:06 +0200
    Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-01 07:44 +0000
      Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-01 11:07 +0200
        Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-01 09:45 +0000
          Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-01 13:02 +0200
            Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-01 11:31 +0000
              Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-01 13:37 +0200
    Re: The problem of simultaneity Dan Wawrzaszek <kr@wskenezr.pl> - 2025-10-01 13:10 +0000
    Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-01 13:39 +0000
      Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-01 16:32 +0200
        Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-01 09:47 -0700
          Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-02 09:52 +0200
            Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-04 20:39 +0200
              Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-05 11:00 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-05 12:38 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-05 12:43 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-05 10:22 -0700
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-05 14:01 -0700
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-05 23:56 -0700
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-06 21:13 -0700
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-07 10:05 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-07 10:51 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-07 14:37 -0700
                Re: The problem of simultaneity Tommy Bagirov <yggoo@iooma.ru> - 2025-10-07 21:48 +0000
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-07 15:22 -0700
                Re: The problem of simultaneity Shannon Bekovich-Cherkassky <sciaa@ssiivsoea.ru> - 2025-10-08 10:28 +0000
                Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-08 00:08 +0000
                Re: The problem of simultaneity Fidencio Bagdasarov <ia@ddo.ru> - 2025-10-08 10:31 +0000
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-07 15:08 -0700
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-09 09:32 +0200
                Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-09 11:28 +0000
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-11 09:11 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-09 14:08 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-09 16:21 +0200
                Re: The problem of simultaneity Derric Bezumov <eebmm@dbdv.ru> - 2025-10-10 15:10 +0000
                Re: The problem of simultaneity Darryn Belorusov <rodryo@nldulan.ru> - 2025-10-09 12:46 +0000
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-09 16:56 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-09 11:46 -0700
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-09 20:18 -0700
                Re: The problem of simultaneity Huey Moshetov <uve@veeo.ru> - 2025-10-10 07:12 +0000
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-10 10:44 -0700
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-10 10:51 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-10 10:48 -0700
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-11 09:18 +0200
                Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-11 09:28 +0000
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-13 07:59 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-13 21:59 +0200
                Re: The problem of simultaneity Williard Romeijnders <jimso@dilidi.nl> - 2025-10-13 20:36 +0000
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-13 13:45 -0700
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-14 07:53 +0200
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-15 09:44 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-15 10:58 +0200
                Re: The problem of simultaneity Dusty Wronski <yst@ok.pl> - 2025-10-15 10:26 +0000
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-16 06:22 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-15 20:05 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-15 20:49 +0200
                Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-15 19:15 +0000
                Re: The problem of simultaneity squalk <sq@net.inv> - 2025-10-15 20:44 +0100
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-15 13:19 -0700
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-16 08:14 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-16 08:16 +0200
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-16 07:02 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-16 00:44 -0700
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-16 19:42 +0200
                Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-16 17:51 +0000
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-18 11:39 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-18 11:43 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-18 12:16 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-18 12:11 +0200
                Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-18 13:37 +0000
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-18 19:52 +0200
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-19 21:02 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-20 09:50 +0200
                Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-18 13:39 +0000
                Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-18 13:40 +0000
                Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-18 13:52 +0000
                Re: The problem of simultaneity Zackee Barazbiev <vbez@eaek.ru> - 2025-10-18 13:50 +0000
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-16 21:11 +0200
                Re: The problem of simultaneity Mikko <mikko.levanto@iki.fi> - 2025-10-14 13:11 +0300
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-14 12:39 +0200
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-15 09:54 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-15 10:59 +0200
                Re: The problem of simultaneity Mikko <mikko.levanto@iki.fi> - 2025-10-15 12:32 +0300
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-16 06:39 +0200
                Re: The problem of simultaneity Mikko <mikko.levanto@iki.fi> - 2025-10-16 12:53 +0300
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-15 08:26 -0700
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-16 06:53 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-16 00:41 -0700
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-15 20:05 +0200
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-15 20:37 +0200
                Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-15 19:14 +0000
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-16 08:04 +0200
                Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-17 00:19 +0000
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-17 07:36 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-15 11:51 -0700
                Re: The problem of simultaneity Maykel Schneijder <eaa@eleeadmia.nl> - 2025-10-15 18:59 +0000
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-11 21:43 +0200
                Re: The problem of simultaneity Mikko <mikko.levanto@iki.fi> - 2025-10-12 13:03 +0300
                Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-12 12:33 +0200
                Re: The problem of simultaneity Dennett Poplawski <swpt@ltoea.pl> - 2025-10-12 10:53 +0000
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-12 21:13 +0200
                Re: The problem of simultaneity Elier Szczepanski <eee@spi.pl> - 2025-10-12 19:50 +0000
                Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-13 08:31 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-13 00:03 -0700
                Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-13 22:00 +0200
                Re: The problem of simultaneity The Starmaker <starmaker@ix.netcom.com> - 2025-10-13 13:54 -0700
    Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-02 09:20 +0200
      Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-04 21:00 +0200
        Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-05 11:16 +0200
          Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-05 13:51 +0200
            Re: The problem of simultaneity Thomas Heger <ttt_heg@web.de> - 2025-10-07 10:31 +0200
              Re: The problem of simultaneity "Paul B. Andersen" <relativity@paulba.no> - 2025-10-08 21:58 +0200
  Re: The problem of simultaneity Python <jpierre.messager@gmail.com> - 2025-10-01 07:45 +0000
  Re: The problem of simultaneity wugi <wugi@brol.invalid> - 2025-10-13 10:19 -0300
    Re: The problem of simultaneity Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-13 15:43 +0200
    Re: The problem of simultaneity Richard Hachel <rh@tiscali.fr> - 2025-10-13 13:47 +0000
    Re: The problem of simultaneity Jay Wojewódzki <jeazwak@kj.pl> - 2025-10-13 16:55 +0000

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