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Re: Ehrenfest paradox

From Thomas Heger <ttt_heg@web.de>
Newsgroups sci.physics.relativity
Subject Re: Ehrenfest paradox
Date 2023-12-28 09:04 +0100
Message-ID <kv4oabFnlskU1@mid.individual.net> (permalink)
References <kuq7ihFpeblU1@mid.individual.net> <1qm8va9.1qil74z1wc3rlbN%nospam@de-ster.demon.nl> <ZsjXr9bgTTCYAO4oJQtdLu_p5EQ@jntp> <kT_ns34ezkf-xf-FRXFdauTG6sE@jntp> <kv1rdhF6ggvU1@mid.individual.net>

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Am 27.12.2023 um 06:39 schrieb Thomas Heger:
> laser gyroscopes

https://en.wikipedia.org/wiki/Ring_laser_gyroscope

Quote

"Principle of operation
According to the Sagnac effect, rotation induces a small difference 
between the time it takes light to traverse the ring in the two 
directions. This introduces a tiny separation between the frequencies of 
the counter-propagating beams, a motion of the standing wave pattern 
within the ring, and thus a beat pattern when those two beams interfere 
outside the ring. Therefore, the net shift of that interference pattern 
follows the rotation of the unit in the plane of the ring. "


https://en.wikipedia.org/wiki/Sagnac_effect

Quote

"The effect is a consequence of the different times it takes right and 
left moving light beams to complete a full round trip in the 
interferometer ring. ...
The rotation thus measured is an absolute rotation, that is, the 
platform's rotation with respect to an inertial reference frame. "

Rotation is therefore 'absolute', while inertial motion isn't.


TH

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Thread

Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2023-12-24 09:17 +0100
  Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2023-12-24 13:18 +0100
    Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-25 16:26 +0000
      Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-27 02:21 +0000
        Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2023-12-27 06:39 +0100
          Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2023-12-28 09:04 +0100
            Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-28 08:31 +0000
              Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-03 08:51 +0100
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-03 10:56 +0000
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-03 09:53 -0800
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-04 08:23 +0100
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-04 10:05 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-05 07:26 +0100
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-05 12:33 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-06 08:47 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-08 20:07 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-09 07:20 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-09 12:28 +0000
          Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2023-12-28 13:18 +0100
            Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-28 04:46 -0800
            Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-28 14:19 +0000
              Re: Ehrenfest paradox Python <python@invalid.org> - 2023-12-28 16:10 +0100
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-28 16:16 +0000
              Re: Ehrenfest paradox JanPB <filmart@gmail.com> - 2023-12-28 15:03 -0800
                Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-12-28 19:34 -0800
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-28 21:05 -0800
            Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-12-28 10:14 -0800
              Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-28 11:04 -0800
                Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-12-28 11:08 -0800
              Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-12-28 19:32 -0800
            Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2023-12-31 08:08 +0100
              Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-31 09:38 +0000
              Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2024-01-04 12:00 +0100
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-04 11:24 +0000
                Re: Ehrenfest paradox Tom Roberts <tjoberts137@sbcglobal.net> - 2024-01-04 12:18 -0600
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-04 22:18 +0000
                Re: Ehrenfest paradox pnalsing@gmail.com (palsing) - 2024-01-04 23:07 +0000
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-04 21:56 -0800
                Re: Ehrenfest paradox pnalsing@gmail.com (palsing) - 2024-01-05 06:36 +0000
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-04 23:45 -0800
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-05 12:18 +0000
                Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2024-01-05 13:54 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-05 05:20 -0800
    Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-12-28 01:15 -0800
    Re: Ehrenfest paradox JanPB <filmart@gmail.com> - 2023-12-28 15:00 -0800
      Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2024-01-03 14:28 +0100
        Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-03 09:54 -0800
        Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2024-01-03 18:09 +0000
          Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2024-01-03 19:48 +0100
            Re: Ehrenfest paradox Adolf Göbel <adolfgoebel@aol.com> - 2024-01-03 22:21 +0100
          Re: Ehrenfest paradox JanPB <filmart@gmail.com> - 2024-01-03 11:25 -0800
  Re: Ehrenfest paradox wugi <wugi@brol.invalid> - 2023-12-28 22:31 +0100
    Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-29 07:42 +0000
      Re: Ehrenfest paradox wugi <wugi@brol.invalid> - 2023-12-29 12:51 +0100
        Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-29 12:58 +0000
          Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2023-12-29 07:55 -0800
        Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-29 13:25 +0000
          Re: Ehrenfest paradox Python <python@invalid.org> - 2023-12-29 14:36 +0100
            Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-29 13:43 +0000
              Re: Ehrenfest paradox Python <python@invalid.org> - 2023-12-29 14:45 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-29 06:48 -0800
            Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2023-12-29 16:24 +0100
              Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-29 15:29 +0000
                Re: Ehrenfest paradox Python <python@invalid.org> - 2023-12-29 20:33 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-29 12:11 -0800
                Re: Ehrenfest paradox Python <python@invalid.org> - 2023-12-29 21:22 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-30 01:34 -0800
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-30 10:02 +0000
                Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2023-12-30 11:06 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-30 02:33 -0800
                Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-30 11:07 +0000
              Re: Ehrenfest paradox Python <python@invalid.org> - 2023-12-29 16:53 +0100
            Re: Ehrenfest paradox wugi <wugi@brol.invalid> - 2023-12-29 23:59 +0100
              Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2023-12-30 01:37 -0800
              Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-30 17:59 +0000
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-03 23:30 -0500
    Re: Ehrenfest paradox Richard Hachel <r.hachel@tiscali.fr> - 2023-12-29 07:44 +0000

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