Groups > sci.physics.relativity > #652781

Re: Galaxies don't fly apart because their entire frame is rotating

From	Thomas Heger <ttt_heg@web.de>
Newsgroups	sci.physics.relativity
Subject	Re: Galaxies don't fly apart because their entire frame is rotating
Date	2024-04-09 08:47 +0200
Message-ID	<l7k68tFdc15U1@mid.individual.net> (permalink)
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Am 05.04.2024 um 10:20 schrieb Mikko:

>>>> In this case a vortex is actually a structure of significant depth,
>>>> where stars are stacked in distance, hence also 'stacked in time' (in
>>>> the image).
>>>
>>> Why would you want to explain someting that is never seen?
>>
>> Theoretical physics does not require visibility.
>
> Study of phantasies is not physics of any kind.
>
>> Interesting are phenomenons which exist, whether they are visible or not.
>
> They are interesting only if they are observed to exist or there is
> a good reason to expect that they can be observed.
>
>> E.g. a ship on the other side of the planet cannot be seen from here
>> or the other side of the Moon.
>
> Both can be seen.
>
>> But both do exist.
>>
>> Visibility, usefulness or other categories of this kind, which reflect
>> a connection to the observer, are irrelevant in physics.
>
> Everything in physics has a connection to an observer.
>

This is a totally idiotic requirement.

Many things cannot be seen, even if they are real.

Seeing is limited to light of a very small frequency band, limited to 
direct visibility and also limited by scale, time of existence and 
illumination.

We also need somebody to watch.

But many things real do not fall into these categories.


E.g. very short lived particles are very hard to see.

Also invisible are radiowaves, the inside of planet Earth or of black holes.

But would you like to shuffel all things under the rug, which are hard 
to see?


TH

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Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-03-28 07:12 +0100
  Re: Galaxies don't fly apart because their entire frame is rotating Volney <volney@invalid.invalid> - 2024-03-28 02:29 -0400
    Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-03-28 21:38 -0700
      Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-03-29 15:54 -0700
    Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-03-29 08:51 +0100
      Re: Galaxies don't fly apart because their entire frame is rotating "Paul B. Andersen" <relativity@paulba.no> - 2024-03-29 10:41 +0100
        Re: Galaxies don't fly apart because their entire frame is rotating Maciej Wozniak <mlwozniak@wp.pl> - 2024-03-29 11:33 +0100
          Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-03-30 08:41 +0100
            Re: Galaxies don't fly apart because their entire frame is rotating Arindam Banerjee <banerjeeadda1234@gmail.com> - 2024-03-30 12:35 +0000
              Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-03-30 09:39 -0700
            Re: Galaxies don't fly apart because their entire frame is rotating Python <python@invalid.org> - 2024-03-30 18:50 +0100
              Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-03-31 08:32 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Mikko <mikko.levanto@iki.fi> - 2024-03-31 11:49 +0300
                Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-03-31 13:42 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-04-05 09:38 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Mikko <mikko.levanto@iki.fi> - 2024-04-05 11:20 +0300
                Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-05 19:22 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-04-05 23:04 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-06 08:52 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-04-06 12:08 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-06 13:32 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-04-07 12:43 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-04-07 19:35 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Athel Cornish-Bowden <me@yahoo.com> - 2024-04-08 10:29 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-09 21:37 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-04-09 08:47 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Maciej Wozniak <mlwozniak@wp.pl> - 2024-04-09 09:47 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Kareem Pérez Romà <kka@eepezerpr.es> - 2024-04-09 22:46 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-04-09 16:04 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-04-09 21:14 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-04-09 22:02 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-04-10 07:00 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Python <python@org.invalid> - 2024-04-10 10:12 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating nospam@de-ster.demon.nl (J. J. Lodder) - 2024-04-10 15:30 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Python <python@org.invalid> - 2024-04-11 17:10 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Maciej Wozniak <mlwozniak@wp.pl> - 2024-04-11 21:03 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Richard Hachel <r.hachel@tiscali.fr> - 2024-04-11 21:06 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Python <python@org.invalid> - 2024-04-11 21:55 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Richard Hachel <r.hachel@tiscali.fr> - 2024-04-11 22:14 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Python <python@org.invalid> - 2024-04-11 22:28 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Maciej Wozniak <mlwozniak@wp.pl> - 2024-04-12 06:29 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-04-11 10:57 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Python <python@org.invalid> - 2024-04-11 11:08 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Maciej Wozniak <mlwozniak@wp.pl> - 2024-04-11 18:13 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Thomas Heger <ttt_heg@web.de> - 2024-04-12 07:45 +0200
                Re: Galaxies don't fly apart because their entire frame is rotating Python <python@org.invalid> - 2024-04-12 07:27 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-04-12 13:50 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2024-04-12 13:52 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-04-13 11:09 -0700
                Re: Galaxies don't fly apart because their entire frame is rotating Sherman De la cruz <rndeu@rrzzzcs.es> - 2024-04-14 00:03 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Richard Hachel <r.hachel@tiscali.fr> - 2024-04-13 06:42 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Freddie Kalmár <rerie@fk.hu> - 2024-04-13 15:10 +0000
                Re: Galaxies don't fly apart because their entire frame is rotating Ross Finlayson <ross.a.finlayson@gmail.com> - 2024-04-13 08:32 -0700
      Re: Galaxies don't fly apart because their entire frame is rotating Volney <volney@invalid.invalid> - 2024-03-30 11:57 -0400
        Re: Galaxies don't fly apart because their entire frame is rotating The Starmaker <starmaker@ix.netcom.com> - 2024-03-30 09:49 -0700
        Re: Galaxies don't fly apart because their entire frame is rotating Leandro Somogyi Lévai <er@ammalo.hu> - 2024-03-31 10:32 +0000

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