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Re: Universal anisochronism

Message-ID <HFADEGo_Y62kaabQ3uD7qGIMd-U@jntp> (permalink)
Subject Re: Universal anisochronism
References (5 earlier) <186a16f646436a37$1724019$3040052$c2065a8b@news.newsdemon.com> <e4LZPWLd0OU5BBcDZgOvpwdkrNw@jntp> <186a1806dba194be$297278$2542420$c2265aab@news.newsdemon.com> <Im-If9O8DIsVZnM-8aX0Hsu24U4@jntp> <186a1a0ef2b96b06$489482$2551467$c2365abb@news.newsdemon.com>
Newsgroups sci.physics.relativity
Date 2025-09-30 16:24 +0000
Organization Nemoweb
From Python <jpierre.messager@gmail.com>

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Le 30/09/2025 à 17:47, Maciej Woźniak a écrit :
> On 9/30/2025 5:18 PM, Python wrote:
>> Le 30/09/2025 à 17:10, Maciej Woźniak a écrit :
>>> On 9/30/2025 4:52 PM, Python wrote:
>>>> Le 30/09/2025 à 16:50, Maciej Woźniak a écrit :
>>>>> On 9/30/2025 4:39 PM, Python wrote:
>>>>>> Le 30/09/2025 à 16:31, Maciej Woźniak a écrit :
>>>>>>> On 9/30/2025 4:22 PM, Python wrote:
>>>>>>>> Le 30/09/2025 à 16:10, Maciej Woźniak a écrit :
>>>>>>>>> On 9/30/2025 4:00 PM, Python wrote:
>>>>>>>>>> Le 30/09/2025 à 15:47, Maciej Woźniak a écrit :
>>>>>>>>>>> On 9/30/2025 3:02 PM, Mikko wrote:
>>>>>>>>>>>> On 2025-09-29 14:18:17 +0000, Richard Hachel said:
>>>>>>>>>>>>
>>>>>>>>>>>>> Le 29/09/2025 à 11:43, Mikko a écrit :
>>>>>>>>>>>>>> On 2025-09-28 11:19:34 +0000, Richard Hachel said:
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> The problem of synchronization.
>>>>>>>>>>>>>>> Is it possible to synchronize multiple clocks located in 
>>>>>>>>>>>>>>> different positions within an inertial frame of reference?
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> Yes, if the clocks are stationary with respect to that 
>>>>>>>>>>>>>> frame and there is
>>>>>>>>>>>>>> no significant gravity.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> In Newtonian physics, yes, because space and time are 
>>>>>>>>>>>>>>> considered independent entities.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> In a Newtonian world you can synchornize two clocks in the 
>>>>>>>>>>>>>> same place,
>>>>>>>>>>>>>> and they stay syncronized when moved to different places. 
>>>>>>>>>>>>>> In the real
>>>>>>>>>>>>>> world moving them will desynchronize them.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> In relativistic physics, this is no longer possible, since 
>>>>>>>>>>>>>>> each clock has its own concept of universal simultaneity, 
>>>>>>>>>>>>>>> specific to its own frame of reference.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> By the usual concept of simultaneity is not clock specific, 
>>>>>>>>>>>>>> only frame
>>>>>>>>>>>>>> specific. If you have a coordinate system with a time 
>>>>>>>>>>>>>> coordinate then
>>>>>>>>>>>>>> you can define that clocks showing the coordinate time are 
>>>>>>>>>>>>>> synchronous.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> Let's send a signal from point M, the midpoint of AB, to 
>>>>>>>>>>>>>>> points A and B.  It is clear that for M, regardless of the 
>>>>>>>>>>>>>>> time at which it assumes the signal was received by the 
>>>>>>>>>>>>>>> two other points, the two events tA and tB would have been 
>>>>>>>>>>>>>>> simultaneous. M doesn't know "when" they occurred, but it 
>>>>>>>>>>>>>>> knows "that they were, by definition, simultaneous FOR IT, 
>>>>>>>>>>>>>>> since the distances MA and MB are equal."
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> That requires that the speed of the signals to A and to B 
>>>>>>>>>>>>>> have the same
>>>>>>>>>>>>>> speed.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>>> However, in relativistic physics, for observer A, the two 
>>>>>>>>>>>>>>> events are not simultaneous, nor are they for observer B.
>>>>>>>>>>>>>>
>>>>>>>>>>>>>> They are if simultaneity is defined with those signals.
>>>>>>>>>>>>>
>>>>>>>>>>>>> What we really need to understand is the fundamental 
>>>>>>>>>>>>> principle of the theory of relativity, without which we can 
>>>>>>>>>>>>> still say things, but with very little understanding of what 
>>>>>>>>>>>>> we're actually talking about.
>>>>>>>>>>>>
>>>>>>>>>>>> Fortunately the Minkowski geometry is easy to understand, and 
>>>>>>>>>>>> after that
>>>>>>>>>>>> the special relativity isn't much harder.
>>>>>>>>>>>
>>>>>>>>>>> And still the mumble of the idiot was not even consistent.
>>>>>>>>>>
>>>>>>>>>> Minimal dementia from Maciej today. Nurses will have a nice 
>>>>>>>>>> evening.
>>>>>>>>>>
>>>>>>>>> slander
>>>>>>>>> noun [ C or U ]
>>>>>>>>> uk  /ˈslɑːn.dər/ us  /ˈslæn.dɚ/
>>>>>>>>> a false spoken statement about someone that damages their 
>>>>>>>>> reputation, or the making of such a statement
>>>>>>>>>
>>>>>>>>> and an obvious choice of weapon for a cornered
>>>>>>>>> relativistic doggie.
>>>>>>>>
>>>>>>>> As I said: minimal, nominal, dementia. Nurses will have a nice 
>>>>>>>> evening.
>>>>>>>>
>>>>>>>
>>>>>>>
>>>>>>> As I said:
>>>>>>> slander
>>>>>>> noun [ C or U ]
>>>>>>> uk  /ˈslɑːn.dər/ us  /ˈslæn.dɚ/
>>>>>>> a false spoken statement about someone that damages their reputation,
>>>>>>> or the making of such a statement
>>>>>>
>>>>>> There is no way to damage your reputation Maciej.
>>>>>
>>>>> Let me guess - famous M&M experiment and many
>>>>> others are confirming that it, just like they're
>>>>> confirming other wild assertions of relativistic
>>>>> idiots. Right?
>>>>
>>>> Nurses : orange alert ! orange alert ! orange alert !
>>>
>>> slander
>>> noun [ C or U ]
>>> uk  /ˈslɑːn.dər/ us  /ˈslæn.dɚ/
>>> a false spoken statement about someone that damages their
>>> reputation, or the making of such a statement
>>>
>>> and an obvious choice of weapon for a cornered
>>> relativistic doggie.
>> 
>> Nurses: back to green, patient is stabilized.
> 
> slander
> noun [ C or U ]
> uk  /ˈslɑːn.dər/ us  /ˈslæn.dɚ/
> a false spoken statement about someone that damages their
> reputation, or the making of such a statement
> 
> and an obvious choice of weapon for a cornered
> relativistic doggie.

Nurses: I confirm. Patient is stabilized.

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Thread

Universal anisochronism Richard Hachel <rh@tiscali.fr> - 2025-09-28 11:19 +0000
  Re: Universal anisochronism Harold Babosov <sava@ob.ru> - 2025-09-28 12:56 +0000
    Re: Universal anisochronism Richard Hachel <rh@tiscali.fr> - 2025-09-28 13:12 +0000
      Re: Universal anisochronism The Starmaker <starmaker@ix.netcom.com> - 2025-09-28 16:36 -0700
        Re: Universal anisochronism "Chris M. Thomasson" <chris.m.thomasson.1@gmail.com> - 2025-09-28 17:14 -0700
  Re: Universal anisochronism The Starmaker <starmaker@ix.netcom.com> - 2025-09-28 10:23 -0700
    Re: Universal anisochronism The Starmaker <starmaker@ix.netcom.com> - 2025-09-28 10:32 -0700
      Re: Universal anisochronism The Starmaker <starmaker@ix.netcom.com> - 2025-09-29 16:11 -0700
        Re: Universal anisochronism The Starmaker <starmaker@ix.netcom.com> - 2025-09-30 00:41 -0700
        Re: Universal anisochronism Tristan Wibberley <tristan.wibberley+netnews2@alumni.manchester.ac.uk> - 2025-10-15 11:03 +0100
  Re: Universal anisochronism Mikko <mikko.levanto@iki.fi> - 2025-09-29 12:43 +0300
    Re: Universal anisochronism Richard Hachel <rh@tiscali.fr> - 2025-09-29 14:18 +0000
      Re: Universal anisochronism The Starmaker <starmaker@ix.netcom.com> - 2025-09-29 08:46 -0700
      Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-29 15:52 +0000
        Re: Universal anisochronism Richard Hachel <rh@tiscali.fr> - 2025-09-29 19:19 +0000
          Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-29 21:35 +0000
      Re: Universal anisochronism Mikko <mikko.levanto@iki.fi> - 2025-09-30 16:02 +0300
        Re: Universal anisochronism Richard Hachel <rh@tiscali.fr> - 2025-09-30 13:37 +0000
          Re: Universal anisochronism Mikko <mikko.levanto@iki.fi> - 2025-10-01 13:22 +0300
        Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 15:47 +0200
          Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-30 14:00 +0000
            Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 16:10 +0200
              Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-30 14:22 +0000
                Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 16:31 +0200
                Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-30 14:39 +0000
                Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 16:50 +0200
                Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-30 14:52 +0000
                Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 17:10 +0200
                Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-30 15:18 +0000
                Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-30 17:47 +0200
                Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-30 16:24 +0000
                Re: Universal anisochronism Oleander Sadowski <nadre@ilasa.pl> - 2025-09-30 22:02 +0000
  Re: Universal anisochronism Python <jpierre.messager@gmail.com> - 2025-09-29 13:29 +0000
    Re: Universal anisochronism Maciej Woźniak <mlwozniak@wp.pl> - 2025-09-29 15:50 +0200
  Re: Universal anisochronism Thomas Heger <ttt_heg@web.de> - 2025-10-02 08:46 +0200
    Re: Universal anisochronism Richard Hachel <rh@tiscali.fr> - 2025-10-02 10:31 +0000

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