Groups > sci.physics.relativity > #627521

Re: Ehrenfest paradox

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics.relativity
Subject	Re: Ehrenfest paradox
Date	2024-01-21 08:00 +0100
Message-ID	<l13tgcFrkkiU1@mid.individual.net> (permalink)
References	(17 earlier) <uo5njc$1d4o0$1@dont-email.me> <l0pbs8Fj91bU1@mid.individual.net> <uoe8jj$378s9$3@dont-email.me> <l11iejFdtelU1@mid.individual.net> <uoia6m$2igb$1@dont-email.me>

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Am 21.01.2024 um 06:31 schrieb Volney:
> On 1/20/2024 4:39 AM, Thomas Heger wrote:
>> Am 19.01.2024 um 17:39 schrieb Volney:
>>> On 1/17/2024 1:58 AM, Thomas Heger wrote:
>>>
>>>> But 2AB is not twice the distance from A to B.
>>>
>>> And why do you claim that?
>>
>> Multiplication is assumed, if no operator is present between two
>> variables in an equation.
>
> No, it is also a common way to indicate the distance between two points
> A and B, as long as they were previously identified as being points,
> which Einstein did.
>>
>> This is standard in usual mathematics.
>
> One standard.
>>
>> Since A and B are variables, '2AB' means in long form:
>>
>> 2 * A * B
>
> No, it means twice the distance between points A and B.
That was meant, but not written.

The real name is actually 'line segment':

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

this is the part of a streigth line through A and B, which is between A 
and B.

A and B are symbols, which were used as names of points by Einstein.

But points cannot be put into an equation (like 2AB), because points are 
physical objects and equations can only deal with mathematical objects.

The closest thing to a mathematical object named 'A' would be the 
position vector of point A, because vectors are mathematical objects and 
could be multiplied.

Since Einstein didn't say that often, how his symbols had to be 
interpreted, he left it essentially to the reader to make sense out of 
his text.

Since I'm a reader, too, I had chosen the next possible mathematical 
interpretation of A and B, which is the position vector.

If Einstein wanted that, he could, but had to make a statement, what he 
wanted instead.

Because he didn't, I'm free to interpret his text in the next plausible 
way, which leads to a wrong equation.
...

TH

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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 Thomas Heger <ttt_heg@web.de> - 2024-01-15 08:12 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-15 13:37 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-16 09:37 +0100
                Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-01-16 20:37 -0800
                Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-01-17 18:46 -0800
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-15 15:42 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-16 09:44 +0100
                Re: Ehrenfest paradox Python <python@invalid.org> - 2024-01-16 11:59 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-16 03:31 -0800
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-17 07:58 +0100
                Re: Ehrenfest paradox Reid Chu Foong <cdiu@ceehueru.cn> - 2024-01-17 11:47 +0000
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-17 19:02 +0000
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-17 12:38 -0800
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-18 07:45 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-18 14:32 +0000
                Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-01-18 09:15 -0800
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-19 11:39 -0500
                Re: Ehrenfest paradox Barbaro Bertrand Jacqueline <bndd@abrnarat.fr> - 2024-01-19 17:52 +0000
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-19 18:56 +0000
                Re: Ehrenfest paradox Physfitfreak <Physfitfreak@gmail.com> - 2024-01-19 14:45 -0600
                Re: Ehrenfest paradox Raydel Walentowicz Dubanowski <naar@lrcllolo.pl> - 2024-01-20 12:34 +0000
                Re: Ehrenfest paradox Physfitfreak <Physfitfreak@gmail.com> - 2024-01-20 22:02 -0600
                Re: Ehrenfest paradox Trejo Metrofanis Demarchis <omef@osjrirea.gr> - 2024-01-21 10:16 +0000
                Re: Ehrenfest paradox Physfitfreak <Physfitfreak@gmail.com> - 2024-01-19 14:42 -0600
                Re: Ehrenfest paradox Leighton Accorso Passerini <oong@aacrncog.it> - 2024-01-19 22:56 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-20 10:39 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-21 00:31 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-21 08:00 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-21 14:05 -0500
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-21 13:58 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-22 07:28 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-22 12:28 -0500
                Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2024-01-22 19:31 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-22 20:51 +0000
                Re: Einstein's Relativity contains a HUGE Loophole. Its Implications Can't  Be Ignored. PNA <pnalsing@gmail.com> - 2024-01-23 02:58 +0000
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-23 11:58 -0500
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-23 09:07 -0800
                Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2024-01-23 19:11 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-23 23:25 +0000
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-24 08:29 +0100
                Re: Ehrenfest paradox Richard Hachel <pourquoi-pas@tiscali.fr> - 2024-01-23 22:11 +0000
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-24 00:55 -0500
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-23 23:28 -0800
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-24 08:33 +0100
                Re: Ehrenfest paradox Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2024-01-22 14:08 -0800
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-23 09:47 +0100
                Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2024-01-23 11:21 +0100
                Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2024-01-23 11:23 +0100
                Re: Ehrenfest paradox Maciej Wozniak <maluwozniak@gmail.com> - 2024-01-23 05:33 -0800
                Re: Ehrenfest paradox Laurence Clark Crossen <l.c.crossen@hotmail.com> - 2024-01-23 19:26 -0800
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-24 08:10 +0100
                Re: Ehrenfest paradox Athel Cornish-Bowden <me@yahoo.com> - 2024-01-24 09:29 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-18 00:06 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-18 07:52 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-19 11:37 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-21 08:02 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-21 13:51 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-22 07:34 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-22 12:40 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-23 09:53 +0100
                Re: Ehrenfest paradox Volney <volney@invalid.invalid> - 2024-01-23 11:51 -0500
                Re: Ehrenfest paradox Thomas Heger <ttt_heg@web.de> - 2024-01-24 08:15 +0100
                Re: Ehrenfest paradox Archie Rusnak Dunajski <circ@rkuuarka.pl> - 2024-01-19 16:01 +0000
                Re: Ehrenfest paradox Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-01-19 12:31 -0800
                Re: Ehrenfest paradox Levon Havroshin Babenkov <ahoo@enioheno.ru> - 2024-01-16 13:25 +0000
  Re: Ehrenfest paradox nospam@de-ster.demon.nl (J. J. Lodder) - 2024-01-09 15:07 +0100

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