Groups > sci.physics.relativity > #656260

Re: Sync two clocks

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics.relativity
Subject	Re: Sync two clocks
Date	2024-08-23 08:32 +0200
Message-ID	<liqonpFr49eU5@mid.individual.net> (permalink)
References	(6 earlier) <va26au$3c12c$8@dont-email.me> <DBY62RW1eKeJ1CBElubh-FukMnE@jntp> <va5cd7$3vdmg$1@dont-email.me> <lio63qFf36mU7@mid.individual.net> <va76co$blq6$8@dont-email.me>

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Am Donnerstag000022, 22.08.2024 um 13:11 schrieb Python:
...
>>>
>>> Richard, read your watch NOW. Write down the time nn:nn:nn.
>>> The time nn:nn:nn is a proper time (read off a clock), it is
>>> invariant, not depending on frame of reference.
>>>
>>> Nobody can have another opinion of what time YOU read of YOUR watch.
>>>
>>> How is it possible to fail to understand this?
>>>
>>> If we have two stationary clocks in an inertial frame,
>>>   and clock A shows tA = t1 when it emits light,
>>>   and clock B shows tB = t1 + td when the light hits it,
>>>   and clock A shows tA'= t1 + 2⋅td when it is hit by the reflected 
>>> light,
>>>
>>> then tA, tB, tA', t1 and td are all proper times which are frame
>>> independent (invariants) and "the same for all".
>>>
>>>   tB − tA = t'A − tB = td
>>>
>>> The transit time td is a frame independent invariant and
>>> the same in both directions, which means that the clocks according
>>> to Einstein's _definition_ are synchronous in the inertial frame.
>>
>>
>> You introduced t_d or 'transit time' (aka 'delay'), while Einstein 
>> didn't use any of these terms.
> 
> But he write down two equations that implies directly that a delay
> is taken into account.


The equation on page 3 COULD be interpeted as calculation of the delay.

But Einstein wrote, that would be the definition of the speed of light.

I would miss the word 'delay' in this context (or something similar).

Also the remainder of this paper does not mention delay neither.

So: where have YOU found any use of delay or transit time in this paper?

I 'combed' the text very carefully and could not find any statement, 
which eventually would match this discription.

...

TH

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Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-15 19:38 +0000
  Re: Sync two clocks Akaike Takashita <ab@abbe.jp> - 2024-08-15 20:09 +0000
  Re: Sync two clocks Python <python@invalid.org> - 2024-08-16 12:47 +0200
    Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-16 12:56 +0200
      Re: Sync two clocks Python <python@invalid.org> - 2024-08-16 13:05 +0200
        Re: Sync two clocks Python <python@invalid.org> - 2024-08-16 13:29 +0200
        Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-16 14:05 +0200
          Re: Sync two clocks Python <python@invalid.org> - 2024-08-16 14:08 +0200
            Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-16 14:15 +0200
              Re: Sync two clocks Python <python@invalid.org> - 2024-08-16 14:24 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-16 14:32 +0200
          Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-16 12:35 +0000
        Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-16 12:31 +0000
          Re: Sync two clocks Python <python@invalid.org> - 2024-08-16 14:37 +0200
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-16 12:51 +0000
      Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-16 12:27 +0000
    Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-16 12:24 +0000
      Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-17 11:26 +0300
        Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-17 08:56 +0000
          Re: Sync two clocks hitlong@yahoo.com (gharnagel) - 2024-08-17 13:19 +0000
            Re: Sync two clocks Python <python@invalid.org> - 2024-08-17 15:35 +0200
          Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-18 15:05 +0300
        Re: Sync two clocks Schepkin Baiguloff <flnen@efd.ru> - 2024-08-17 11:10 +0000
      Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-19 22:33 +0200
        Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-19 23:13 +0200
        Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-19 23:15 +0000
          Re: Sync two clocks hitlong@yahoo.com (gharnagel) - 2024-08-19 23:33 +0000
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-19 23:39 +0000
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-19 23:41 +0000
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 00:01 +0000
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 00:35 +0000
              Re: Sync two clocks hitlong@yahoo.com (gharnagel) - 2024-08-20 02:26 +0000
                Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 02:56 +0000
                Re: Sync two clocks hitlong@yahoo.com (gharnagel) - 2024-08-20 11:31 +0000
                Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 13:10 +0000
                Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 03:12 +0000
          Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-20 14:13 +0300
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 11:27 +0000
              Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 14:01 +0200
                Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 12:43 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 14:56 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-20 15:59 +0200
                Re: Sync two clocks hitlong@yahoo.com (gharnagel) - 2024-08-20 13:02 +0000
              Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 11:07 +0300
                Re: Sync two clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2024-08-22 11:02 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-22 12:11 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-22 10:57 +0000
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-22 11:09 +0000
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-22 20:20 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-22 20:26 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-22 19:12 +0000
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-23 13:23 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 11:45 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-23 15:21 +0300
                Re: Sync two clocks The Starmaker <starmaker@ix.netcom.com> - 2024-08-23 08:03 -0700
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 17:05 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 18:16 +0200
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-23 20:39 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 11:54 +0000
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-23 21:03 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 11:57 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 16:04 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 16:52 +0000
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-23 22:42 +0200
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-24 13:57 +0200
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-23 21:45 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 21:08 +0000
                Re: Sync two clocks The Starmaker <starmaker@ix.netcom.com> - 2024-08-23 21:21 -0700
                Re: Sync two clocks The Starmaker <starmaker@ix.netcom.com> - 2024-08-25 09:36 -0700
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-25 19:41 +0200
                Re: Sync two clocks The Starmaker <starmaker@ix.netcom.com> - 2024-08-26 09:41 -0700
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 12:09 +0000
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-23 21:15 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 14:28 +0200
            Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 14:45 +0000
              Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 17:02 +0200
                Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 15:28 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 17:32 +0200
                Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 16:18 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 18:22 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-20 18:38 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 18:42 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-20 19:46 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-21 09:51 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-21 11:07 +0200
                Re: Sync two clocks Damon Del bosque <qleb@ddqqled.es> - 2024-08-21 10:11 +0000
                Re: Sync two clocks Fehmi Bezrukov <efbh@eror.ru> - 2024-08-20 18:58 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-21 00:59 +0200
                Re: Sync two clocks Athel Cornish-Bowden <me@yahoo.com> - 2024-08-21 09:58 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-21 10:11 +0200
                Re: Sync two clocks László Buzás <iz@stssb.hu> - 2024-08-21 08:33 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 14:24 +0300
                Re: Sync two clocks Harrison Leontarakis <niore@rol.gr> - 2024-08-22 14:00 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 16:10 +0200
                Re: Sync two clocks Darien Rorris <rrdoe@dio.gr> - 2024-08-23 23:08 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-24 07:52 +0200
                Re: Sync two clocks Hershel Fournier <nero@fs.refr> - 2024-08-24 20:04 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-24 11:06 +0300
                Re: Sync two clocks Badyaev Pavlinov <eviyip@ipl.ru> - 2024-08-20 16:41 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 11:08 +0300
              Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 10:59 +0300
          Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-20 15:08 +0200
            Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-20 16:01 +0200
              Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 16:03 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-20 16:39 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 16:42 +0200
        Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-19 23:25 +0000
          Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-20 15:34 +0200
            Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 15:39 +0200
              Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 15:12 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 17:17 +0200
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-21 20:42 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-21 20:20 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 11:18 +0300
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-22 12:28 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-22 10:52 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-22 13:49 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-22 14:19 +0200
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 14:49 +0300
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-22 14:21 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-22 14:23 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-22 14:28 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-22 14:45 +0200
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-22 20:30 +0200
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-22 09:02 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-22 13:11 +0200
                Re: Sync two clocks Yonny Bukowski <skyo@yobnwkyy.pl> - 2024-08-22 22:02 +0000
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-23 08:37 +0200
                Re: Sync two clocks Rodobaldo Koustoubos <oob@doko.gr> - 2024-08-23 23:16 +0000
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-23 08:32 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 15:49 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 21:52 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-23 11:51 +0300
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-24 08:50 +0200
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-24 11:02 +0300
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-24 12:23 +0000
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-25 08:55 +0200
                Re: Sync two clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2024-08-25 10:35 +0200
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-25 13:06 +0300
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-25 12:49 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-25 09:24 +0200
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-26 08:13 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-26 12:46 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-26 11:10 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-26 13:15 +0200
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-23 07:41 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 07:59 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 15:41 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 15:57 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 15:59 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 16:27 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 16:29 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 18:15 +0200
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-23 18:19 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-23 19:06 +0200
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-24 08:25 +0200
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-24 08:46 +0200
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-23 11:55 +0300
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 11:30 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-23 15:16 +0300
                Re: Sync two clocks "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-24 12:09 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-24 11:47 +0000
                Re: Sync two clocks Python <python@invalid.org> - 2024-08-25 09:44 +0200
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-25 09:07 +0200
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-25 13:15 +0300
                Re: Sync two clocks Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-25 12:51 +0200
                Re: Sync two clocks Richard Hachel <r.hachel@tiscali.fr> - 2024-08-23 10:58 +0000
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-23 15:18 +0300
                Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-24 09:03 +0200
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-24 11:04 +0300
                Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 11:13 +0300
              Re: Sync two clocks Mikko <mikko.levanto@iki.fi> - 2024-08-22 11:10 +0300
        Re: Sync two clocks Thomas Heger <ttt_heg@web.de> - 2024-08-20 08:43 +0200
          Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 08:45 +0200
          Re: Sync two clocks  Richard Hachel   <r.hachel@jesauspu.fr> - 2024-08-20 09:55 +0000
        Re: Sync two clocks Hanoi Bagdasaroff <faa@fgs.ru> - 2024-08-20 15:33 +0000
          Re: Sync two clocks Python <python@invalid.org> - 2024-08-20 17:58 +0200
            Re: Sync two clocks Guadalupe Hankoev <ogpa@uauvv.ru> - 2024-08-20 16:17 +0000

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