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Re: Ehrenfest paradox

From Thomas Heger <ttt_heg@web.de>
Newsgroups sci.physics.relativity
Subject Re: Ehrenfest paradox
Date 2024-01-03 08:51 +0100
Message-ID <kvkholFl05uU1@mid.individual.net> (permalink)
References (2 earlier) <ZsjXr9bgTTCYAO4oJQtdLu_p5EQ@jntp> <kT_ns34ezkf-xf-FRXFdauTG6sE@jntp> <kv1rdhF6ggvU1@mid.individual.net> <kv4oabFnlskU1@mid.individual.net> <M3Ec439lLbV2TwZIYjdq7DeGz7s@jntp>

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Am 28.12.2023 um 09:31 schrieb Richard Hachel:
> Le 28/12/2023 à 09:01, Thomas Heger a écrit :
>
>> Rotation is therefore 'absolute', while inertial motion isn't.
>
> There is a difference between a non-rotating disk moving Galileanly at
> Vo=0.8c from right to left, and a fixed disk rotating with a tangential
> speed of 0.8c.


I have not the faintest idea how you want to build a rigid disk with 
tangential velocity of 0.8 c.

That disk had to be extremely large and had do run insanely fast.

This combinagtion would create tremendous tensions at the rim of the 
disk, which will more than sufficiant to break the disk apart. (for all 
possible rigid materials)


> These are therefore not, obviously, the same equations that must be
> used. For the disk in translation, it's easy, the Poincaré-Lorentz
> transformations are enough. For the rotating disk, the reflection
> becomes appalling, and a lot of people have thrown in the towel in the
> face of the simple Ehrenfest paradox.

How in the world could someone calculate the relativistic effects of 
nonsense.


TH

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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 Thomas Heger <ttt_heg@web.de> - 2024-01-10 09:53 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-10 14:05 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-14 07:23 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-14 16:26 +0000
                Re: Ehrenfest paradox Gus Bähr Schultheiß <igsu@ybonrurg.dd> - 2024-01-14 19:49 +0000
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-14 18:50 -0500
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-15 00:14 +0000
                Re: Ehrenfest paradox Python <python@invalid.org> - 2024-01-15 01:17 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-15 00:51 +0000
                Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2024-01-09 15:07 +0100
          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 Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2024-01-09 20:15 -0800
              Re: Ehrenfest paradox pnalsing@gmail.com (palsing) - 2024-01-10 05:12 +0000
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-09 23:31 -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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