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Re: The problem of relativistic synchronisation

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics.relativity
Subject	Re: The problem of relativistic synchronisation
Date	2024-09-06 12:31 +0200
Message-ID	<lk03v3Fm189U3@mid.individual.net> (permalink)
References	(7 earlier) <vb79g4$3cout$1@dont-email.me> <FUkaOI4ar_TcsN7KN74WFA8f3Yw@jntp> <vbactr$3v15v$1@dont-email.me> <aUNR2GXBkc_bVoYI-Y6TV491wuE@jntp> <vbc7tk$at7q$2@dont-email.me>

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Am Donnerstag000005, 05.09.2024 um 14:25 schrieb Paul.B.Andersen:
> Den 05.09.2024 01:23, skrev Richard Hachel:
>>
>> Vo=0.8c
>>
>> Vapp=Vo/(1+cosµ.Vo/c)
>>
>> Vapp'=(4/9)c
>>
>> Vapp"=4c
>>
>> R.H.
> 
> How confused is it possible to be? :-D
> 
> You must know that this 'apparent speed' is a visual
> observation (telescope).
> 
>  From whence did you get the idiotic idea that somebody
> is visually observing any of the clocks in this paper?
> 
> https://paulba.no/pdf/Mutual_time_dilation.pdf
> 
> A  and B  are moving with the speed v = 0.8c in K'  <-
> A' and B' are moving with the speed v = 0.8c in K   ->
> 
> Nothing is moving with any other speed than v.
> There are no 'apparent speeds'.
> 
> Is this too hard for you to understand?

Any velocity is between an object and a point of reference.

Usually we have an observer (say 'A') at a certain spot (also called 
'A'), who measures distances from his own position.

The measured object (say 'B') moves - say- away at a certain speed v.

But seen from B the point A moves away with the same speed, though into 
the opposite direction.

The relevant coordinate system can now be attatched to A or B, depending 
on where the observer is placed.

So: the coordinate system K is placed, that its center coincides with 
'A', while the certer of K' coincides with B.

(the primed version of A and B make no sense, hence could be left away).

Now we have two systems K and K' which both receed from an imaginary 
point in the center (called 'M', for simpility), which is assumed to be 
not moving.

This would mean, that A would receed from M by v=0.8c and from B with 
1,6 c, hence drops out of the realm of visiblity, because the image of A 
gets redshifted below the value 0 Hz, if seen from the remote side (here B).

But, nevertheless, both (A and B) could remain well and good, because 
who cares about distant observers, which you cannot see?

...


TH

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Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-08-29 22:15 +0000
  Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-30 15:20 +0200
    Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-08-30 15:43 +0200
    Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-08-30 16:31 +0000
      Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-08-31 08:30 +0200
        Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-08-31 07:05 +0000
          Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-08-31 22:11 +0200
            Re: The problem of relativistic synchronisation Maciej Wozniak <mlwozniak@wp.pl> - 2024-08-31 23:01 +0200
            Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-08-31 21:14 +0000
              Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-01 02:26 +0200
              Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-01 11:58 +0200
                Re: The problem of relativistic synchronisation Maciej Wozniak <mlwozniak@wp.pl> - 2024-09-01 12:12 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-09-01 11:25 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-01 14:29 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-09-01 14:13 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-01 19:21 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-09-01 17:25 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-01 19:53 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-09-01 17:38 +0000
                Re: The problem of relativistic synchronisation Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-09-01 11:22 -0700
                Re: The problem of relativistic synchronisation Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-09-01 11:56 -0700
                Re: The problem of relativistic synchronisation Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-09-01 12:29 -0700
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-02 01:41 +0200
                Re: The problem of relativistic synchronisation Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-09-01 19:30 -0700
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-02 05:29 +0200
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-01 19:42 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-09-01 20:29 +0000
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-02 01:39 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-02 14:00 +0000
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-03 01:04 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 09:07 +0000
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-03 11:25 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 09:28 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-02 19:24 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 10:03 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-03 17:21 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 20:20 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 20:32 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 21:08 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 21:24 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 23:20 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-04 00:32 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-04 21:38 +0200
                Re: The problem of relativistic synchronisation Maciej Wozniak <mlwozniak@wp.pl> - 2024-09-04 22:24 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-04 22:54 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-04 23:02 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-05 14:25 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-04 23:23 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-05 14:25 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-05 14:15 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-05 22:19 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-05 20:31 +0000
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-05 22:57 +0200
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-05 23:03 +0200
                Re: The problem of relativistic synchronisation Mikko <mikko.levanto@iki.fi> - 2024-09-06 15:21 +0300
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-06 15:44 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-05 17:26 +0000
                Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-06 12:31 +0200
                Re: The problem of relativistic synchronisation Maciej Wozniak <mlwozniak@wp.pl> - 2024-09-06 12:52 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-06 11:15 +0000
                Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-07 09:30 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-06 11:31 +0000
                Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-07 09:41 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-06 11:41 +0000
                Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-02 14:42 +0200
              Re: The problem of relativistic synchronisation "Paul.B.Andersen" <relativity@paulba.no> - 2024-09-01 12:25 +0200
                Re: The problem of relativistic synchronisation Maciej Wozniak <mlwozniak@wp.pl> - 2024-09-01 12:31 +0200
          Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-01 08:28 +0200
            Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-01 10:18 +0000
              Re: The problem of relativistic synchronisation Mikko <mikko.levanto@iki.fi> - 2024-09-01 16:21 +0300
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-01 21:47 +0000
                Re: The problem of relativistic synchronisation Mikko <mikko.levanto@iki.fi> - 2024-09-03 13:57 +0300
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-03 11:49 +0000
              Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-02 08:26 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-02 12:16 +0000
                Re: The problem of relativistic synchronisation Maciej Wozniak <mlwozniak@wp.pl> - 2024-09-02 14:29 +0200
                Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-03 07:53 +0200
                Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-04 09:24 +0200
                Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-04 14:05 +0200
                Re: The problem of relativistic synchronisation Thomas Heger <ttt_heg@web.de> - 2024-09-05 08:44 +0200
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-02 12:27 +0000
                Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@wanadou.fr> - 2024-09-02 12:36 +0000
            Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-09-01 14:34 +0200
        Re: The problem of relativistic synchronisation Python <python@invalid.org> - 2024-08-31 12:29 +0200
    Re: The problem of relativistic synchronisation Richard Hachel <r.hachel@tiscali.fr> - 2024-08-30 16:37 +0000
      Re: The problem of relativistic synchronisation "Paul B. Andersen" <relativity@paulba.no> - 2024-08-30 20:27 +0200

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