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   sci.physics.relativity      The theory of relativity      225,861 messages   

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   Message 223,942 of 225,861   
   Mikko to Thomas Heger   
   Re: The problem of simultaneity   
   14 Oct 25 13:11:44   
   
   From: mikko.levanto@iki.fi   
      
   On 2025-10-13 05:59:58 +0000, Thomas Heger said:   
      
   > Am Samstag000011, 11.10.2025 um 11:28 schrieb Richard Hachel:   
   >> Le 11/10/2025 à 09:13, Thomas Heger a écrit :   
   >>   
   >>> Einstein's relativity theory isn't relativistic at all.   
   >>>   
   >>> TH   
   >>   
   >> Yes.   
   >> It's relativistic.   
   >> But the problem is that it confuses everything, and it leads to   
   >> nonsense if you take it a step too far.   
   >> For example, Albert Einstein, who is considered a god, was unable to   
   >> understand the difference between the relativity of chronotropy   
   >> and the relativity of durations, which is what Dr. Richard Hachel, who   
   >> is considered a crank, does.   
   >> It's the history of humanity in real life.   
   >>   
   >> Let's take Langevin's traveler as an example; Hachel is very precise   
   >> about the terms. On the traveler's return, for example, his chronotropy   
   >> beats slower than that of the terrestrial traveler (as on the outward   
   >> journey), but his watch nevertheless runs faster.   
   >   
   >   
   > I would use other words, but actually had the same impression of   
   > Einstein's text.   
   >   
   > I meant that time is always an interval, while Einstein thought about   
   > time as linear and countable.   
   >   
   > But usually we use some starting point as reference, while often that   
   > isn't mentioned.   
   >   
   > What makes no sense, that are terms like 'bestimmte Ära' (certain era),   
   > because eras are not numbered.   
   >   
   > Also this concept of 'linear time' (embedded in 'big-bang theory') is   
   > most likely wrong.   
   >   
   > Einstein also used 'external time', which is similar to Newtons   
   > 'absolute time', while didn't use Poincare's 'local time'.   
   >   
   > So, in my opinion SRT isn't 'relativistic' enough.   
      
   The problem with the word "time" (and many other words) is that in   
   Common Language it is used for many different meanings. When clearer   
   expression is desired different words should be used for different   
   meanings. Often, and in particular for discussing physics, it is   
   best to restrict the meaning of "time" when used as a nout to   
   expressions that can be used as an answer to the questions that ask   
   when someting happens, i.e., values of a time coordinate of an event.   
   The word "duration" can be used for difference of two times. But even   
   in physics discussions it is usually assumed that the participants can   
   understand from context which of the multiple meanings of "time" is   
   used.   
      
   --   
   Mikko   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)   

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