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Groups > sci.physics.relativity > #666445
| From | "Paul B. Andersen" <relativity@paulba.no> |
|---|---|
| Subject | Re: Should we synchronize clocks |
| Newsgroups | sci.physics.relativity |
| References | (9 earlier) <mk1frgFa17rU1@mid.individual.net> <WKz9yYDxcwRTrRdfBh6CkJ_7iB0@jntp> <mk6oenF68rgU4@mid.individual.net> <JCuDQ.6$R153.3@fx01.ams4> <mk9et6FklrkU1@mid.individual.net> |
| Message-ID | <RkUDQ.13252$fVG4.6009@fx03.ams4> (permalink) |
| Organization | Eweka Internet Services |
| Date | 2025-10-03 20:12 +0200 |
Den 03.10.2025 10:18, skrev Thomas Heger:
> Am Donnerstag000002, 02.10.2025 um 14:57 schrieb Paul B. Andersen:
>>
>> Einstein's _only_ point was to define simultaneity,
>> it was not to show how you can make two asynchronous clocks
>> synchronous.
>
>
> No, because Einstein wrote about a method, which included clocks.
>
> But clocks are technical devices and are subject to human interactions.
>
> Time in contrast is not supposed to be affected by humans or clocks.
>
> So, Einstein's definition does not define time, but describes a
> technical method, which ultimatively synchronizes remote clocks.
>
> (And as an enignieer I know a few things about technical procedures.)
>
> If Einstein actually wanted to define simultineity he should have use a
> hypothetical signal, which connects without delay.
>
> That such a signal does not exist in reality does not hinder to define
> it and use it in a definition.
>
> The discrepancy to the real world and the real signal by light or radio
> waves could be put in 'by hand' and by calculating the delay of light to
> travgel between two points and adding the result to the timing signals.
This is irrelevant to Einstein's definition of simultaneity-
We are talking about: § 1. Definition of Simultaneity
It is an indisputable fact that Einstein in §1 of his paper
defines simultaneity, and does not explain how to synchronise
asynchronous clocks.
>
>> Einstein's method to see if clocks are synchronous,
>> is a thought experiment.
>
> Really? Could he do that?
>
>> A thought experiment is to see the logical consequences of a set
>> of assumptions.
>> A thought experiment does not prove that the assumptions are true.
>>
> Well, yes.
>
> This is similar to a proof in mathematics.
>
>> quote from § 1. Definition of Simultaneity
>> -------------------------------------------
>> | "If at the point A of space there is a clock, an observer
>> | at A can determine the time values of events in the immediate
>> | proximity of A by finding the positions of the hands which
>> | are simultaneous with these events.
>> | If there is at the point B of space another clock in all
>> | respects resembling the one at A, it is possible for an observer
>> | at B to determine the time values of events in the immediate
>> | neighbourhood of B."
>>
>> With what kind of precession do you think it in 1905 was possible
>> to "determine the time values of events" "by finding the positions
>> of the hands"? And the observer at B had to find the position of
>> the hands when he saw the ray hit the mirror.
>
> The mirror was supposed to stand near the clock at point B, while the
> observer at A sends out a beam of light at some known point in time.
>
> So, the observer at B (also named 'B') watches his mirror and tries to
> catch that moment, when a signal from A arrives, looks immediatly at his
> watch and tries to remember, where the hands were.
>
> But what Einstein didn't write was also important:
>
> he had to write down the read out of his clock and mail it to A.
> >
> Ok, actually that method was the other way round:
>
> A reads out his clock at the start of the ray, writes that value down
>
> next A reads the own clock, once the ray returns and writes that value
> down.
>
> Then this paper is sent as a letter (by US-postal service or similar) to
> the remote station (the Moon for instance).
>
> There the observer at B receives the letter, calculates the delay, adds
> that delay to the start time and turns the own clock to the result.
Why could Einstein write:
"In accordance with definition the two clocks are synchronous if
tB − tA = t′A − tB" ?
Was it because:
1. A human observer at A had, by observing the hands of his clock,
measured that the clock showed tA when the ray was sent,
and that the clock showed t'A when he saw the reflected ray.
And a human observer at B had, by observing the hands of his clock,
measured that his clock showed tB when he saw the ray from A.
And when the measurements were done, the human observer at A
sent tA and t'A to the human observer at B who could calculate
if (tB − tA) = (t′A − tB) = d/c, in which case the two clocks
were synchronous.
2. Einstein demonstrated that if tA, t'A and tB were measured
with infinite precision, and the transit time is exactly d/c by
definition, then it logically follows that if (tB−tA) = (t′A−tB)
then tB = (tA + d/c) and t′A = (tB + d/c) which means that both
clocks simultaneously show the same.
Of course you know that none of the measurements described in
1. were made.
Einstein statement:
"In accordance with definition the two clocks are synchronous if
tB − tA = t′A − tB"
is a logical consequence of the postulates of SR
and that the speed of light is isotropic.
It is not a result of real measurements.
You can see this explained in better detail below:
(Why did you snip it? Didn't you understand it?)
-----------------------------
We start with this quote:
quote from § 1. Definition of Simultaneity
-------------------------------------------
| we establish
| by definition that the “time” required by light to travel
| from A to B equals the “time” it requires to travel from
| B to A."
Note that this statement imply that A and B are stationary
relative to each other.
This definition together with the two postulates of SR means:
The speed of light is isotropic c by definition.
This is a definition of simultaneity, se below.
That two clocks are synchronous means that they
simultaneously show the same.
Now Einstein made the following _thought experiment_:
quote from § 1. Definition of Simultaneity
-------------------------------------------
| "Let a ray of light start at the “A time” tA from A towards B,
| let it at the “B time” tB be reflected at B in the direction
| of A, and arrive again at A at the “A time” t′A."
tA is the time shown by the clock at A when the ray leave A.
tB is the time shown by the clock at B when the ray hits B.
t'A is the time shown by the clock at A when the reflected
ray hits A.
In a thought experiment measurements can be made with
infinite precision, and we can sit at our desks and analyse it.
The transit time is d/c where d is the distance between A and B.
Let clock B be F ahead of clock A, where F is between 0 and
a long time.
We then have: tB = tA + d/c + F
and: t'A = tB + d/c - F
so: (tB - tA) = d/c + F
(t'A - tB) = d/c - F
If (tB - tA) = (t'A - tB) then (d/c + F) = (d/c - F),
which is true only if F = 0,
the clocks simultaneously show the same.
This means:
TB = (TA + d/c)
When clock B shows TB clock A simultaneously
shows (TA + d/c), which is the same.
t'A = (tB + d/c)
When clock A shows t'A clock B simultaneously
shows (tB + d/c), which is the same.
Thus:
In accordance with definition the two clocks are synchronous if
tB − tA = t′A − tB.
This is a logical consequence of the postulates of SR
and that the speed of light is isotropic.
Einstein's definition of simultaneity is mathematically
consistent.
This doesn't say anything about whether or not SR's
predictions are in accordance with measurements.
Only real experiments can do that.
--
Paul
https://paulba.no/
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Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-18 15:36 +0200
Re: Should we synchronize clocks Lemuel Sniegowski <mesue@lloeii.pl> - 2025-09-18 14:36 +0000
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-18 19:15 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-18 21:51 +0200
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Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-18 20:16 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-18 22:39 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-18 20:39 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 06:52 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 10:17 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 12:36 +0200
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Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 13:02 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 11:05 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 15:21 +0200
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Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 15:09 +0000
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 15:11 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 20:14 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 18:54 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 21:48 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 19:53 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 20:13 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-19 18:59 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 21:54 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-18 22:40 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-18 20:42 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-19 06:55 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-18 20:03 +0000
Re: Should we synchronize clocks Ron Dubanowski <oob@rrr.pl> - 2025-09-18 21:02 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-21 10:48 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-21 09:50 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-22 08:44 +0200
Re: Should we synchronize clocks Jesaiah Hofmeister <oe@eajeem.de> - 2025-09-22 10:08 +0000
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-09-22 22:09 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-22 22:34 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-22 20:51 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-22 23:29 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-22 21:44 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-23 07:14 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-23 20:19 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 00:02 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-23 22:06 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 07:28 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-23 10:04 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-23 10:54 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-24 07:47 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 08:32 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-26 08:32 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-26 07:09 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-27 08:25 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-28 09:47 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-28 08:39 +0000
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Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-28 09:15 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-28 12:12 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-28 10:22 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-28 13:54 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-28 12:24 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-28 14:31 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-28 10:40 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-02 08:36 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-04 13:15 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-05 10:46 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-30 09:45 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-01 10:26 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-02 09:42 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-02 14:57 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-02 15:24 +0200
Re: Should we synchronize clocks Hoyet Bobienski <neen@tnisyoeh.pl> - 2025-10-02 17:58 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-03 10:18 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-03 10:41 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-04 09:03 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-04 09:53 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-03 20:12 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-03 23:07 +0200
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-03 21:59 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-03 22:13 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-04 07:42 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-04 09:21 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-04 19:52 +0200
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-10-04 13:19 -0700
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-04 23:13 +0200
Re: Should we synchronize clocks Hensley Poplawski <pwep@lapne.pl> - 2025-10-04 21:40 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-04 22:39 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-05 08:03 +0200
Re: Should we synchronize clocks Humb Szczepanski <hze@bzrppes.pl> - 2025-10-05 09:39 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-05 12:27 +0200
Re: Should we synchronize clocks Dwight Ślusarski <sk@sriigd.pl> - 2025-10-05 11:06 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-05 14:35 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-05 15:14 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-05 19:25 +0200
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-05 16:11 +0000
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-10-05 10:23 -0700
Re: Should we synchronize clocks Athel Cornish-Bowden <me@yahoo.com> - 2025-10-05 19:25 +0200
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-05 17:52 +0000
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-05 18:05 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-05 19:21 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-05 20:47 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-06 07:00 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-06 07:15 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-06 12:14 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-06 10:35 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-06 12:50 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-06 10:54 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-06 14:37 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-06 12:47 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-06 14:58 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-06 21:22 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-06 21:24 +0000
Re: Should we synchronize clocks Mylowe Babineaux <auo@aeu.fr> - 2025-10-06 21:40 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-07 07:36 +0200
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-10-06 15:03 -0700
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-10-06 14:32 -0700
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-05 00:26 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-05 20:50 +0000
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-05 21:03 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-05 21:37 +0000
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-06 02:46 +0000
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-06 02:58 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-06 06:59 +0200
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-06 14:25 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-07 09:47 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-07 09:59 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-05 10:55 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-05 10:56 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-05 20:28 +0200
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-10-05 11:49 -0700
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-05 19:02 +0000
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-05 22:32 +0200
Re: Should we synchronize clocks Laureano Hofmeister <efe@estsrl.de> - 2025-10-03 22:55 +0000
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-04 13:18 +0000
Re: Should we synchronize clocks Leonardo Bélanger <rrnl@lbdgrcr.fr> - 2025-10-04 14:37 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-05 10:47 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-05 21:04 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-10-07 11:35 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-07 13:03 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-07 15:32 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-07 13:45 +0000
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-07 15:18 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-07 17:39 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-07 21:18 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 06:35 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 07:43 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 10:58 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 11:11 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 09:43 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 11:58 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 10:45 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 13:58 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 12:02 +0000
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-10-08 23:05 -0700
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 09:34 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 11:48 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 10:43 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 13:58 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-10-08 12:02 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-10-08 14:06 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-07 23:35 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-10-07 23:43 +0200
Re: Should we synchronize clocks Richard Hachel <rh@tiscali.fr> - 2025-10-02 18:23 +0000
Re: Should we synchronize clocks Thaddeus Babineaux <bdh@idudab.fr> - 2025-10-02 19:26 +0000
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-09-29 21:41 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-09-29 21:41 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-29 22:19 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-29 21:21 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 08:07 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-27 08:32 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 18:43 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 21:18 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 19:21 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 21:36 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 19:43 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 23:06 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 23:04 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-25 07:00 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-25 06:56 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-25 09:52 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-25 20:16 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-25 23:36 +0200
Re: Should we synchronize clocks Tibor Jaskolski <kso@ii.pl> - 2025-09-25 07:16 +0000
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-26 08:36 +0200
Re: Should we synchronize clocks Python <jpierre.messager@gmail.com> - 2025-09-26 07:10 +0000
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-09-23 21:02 +0200
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-09-23 15:16 -0700
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-24 08:08 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-09-24 22:17 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 23:10 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 21:12 +0000
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-24 21:14 +0000
Re: Should we synchronize clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2025-09-24 23:30 +0200
Re: Should we synchronize clocks "Paul B. Andersen" <relativity@paulba.no> - 2025-09-23 21:03 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-23 21:57 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-23 20:20 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 00:07 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-23 22:10 +0000
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-24 07:34 +0200
Re: Should we synchronize clocks Python <jp@python.invalid> - 2025-09-23 22:16 +0000
Re: Should we synchronize clocks guido wugi <wugi@brol.invalid> - 2025-09-22 12:44 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-22 13:03 +0200
Re: Should we synchronize clocks guido wugi <wugi@brol.invalid> - 2025-09-25 22:52 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-25 23:41 +0200
Re: Should we synchronize clocks Thomas Heger <ttt_heg@web.de> - 2025-09-26 09:09 +0200
Re: Should we synchronize clocks nospam@de-ster.demon.nl (J. J. Lodder) - 2025-09-22 14:12 +0200
Re: Should we synchronize clocks Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-22 15:05 +0200
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-09-19 10:23 -0700
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-09-22 22:20 -0700
Re: Should we synchronize clocks "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-09-22 22:27 -0700
Re: Should we synchronize clocks The Starmaker <starmaker@ix.netcom.com> - 2025-09-22 23:00 -0700
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