Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > sci.physics.relativity > #600896

Re: Simultaneity - reminder

Show all headers | View raw

On 2023-02-06 16:21:50 +0000, Richard Hachel said:

> Le 06/02/2023 à 08:52, Maciej Wozniak a écrit :
>> Two events are simultaneous when they have the same
>> time coordinate.
> 
>  Only in a Newtonian world.
> 
> But the world is NOT Newtonian.
> 
> There are certain inescapable properties in the world such as universal 
> gravitation.
> 
> For example, the moon revolves around the earth, and it is not by 
> saying "it does not exist" that we will be able to understand why.
> 
> What I would like people to understand, and what I have been trying to 
> get across for years, is that there is no absolute duration (certainly, 
> what everyone learns about banns des faculties), but there is no 
> instant, present, absolute simultaneity either.
> 
> Very strangely, for 40 years that I teach that, I see that everyone 
> loses the pedals, and I don't know why.

Let me ask again, as you haven't answered previously: whom do you teach 
and where do you teach them? The Sorbonne and the Collège de France 
don't seem to have heard of you.
> 
> How is it that you, who are an intelligent and curious critic, cannot 
> be among the first to say:
> "I don't know if Hachel is right, but I admit that his explanations are 
> a matter of profound genius".
> 
> What is blocking you in my explanations?
> 
> What has blocked everyone for 40 years, as soon as I speak of spatial 
> anisochrony and the relativity of punctual simultaneity.
> 
> It is all the more strange that one admits it for the solar hour.
> 
> When it is noon in Paris, it is not noon in San Francisco.
> 
> There is not a single man on earth to contradict that there is no solar 
> simultaneity.
> 
> However, if we transpose this to "global" physical simultaneity, 
> everyone loses the pedal.
> 
> The fact of saying that two watches separated by a distance x will 
> ALWAYS mean that in this benchmark, the two watches will be 
> INACCORDABLE by nature, drives everyone crazy.
> 
> But why? ? ?
> 
> FOR WHAT?
> 
> R.H.


-- 
Athel -- French and British, living in Marseilles for 36 years; mainly 
in England until 1987.

Back to sci.physics.relativity | Previous | Next — Previous in thread | Next in thread | Find similar

Thread

Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-05 23:52 -0800
  Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-06 16:09 +0000
    Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 05:34 -0800
  Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-06 16:21 +0000
    Re: Simultaneity - reminder Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-02-06 17:26 +0100
    Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-06 08:44 -0800
      Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-06 17:05 +0000
        Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-06 23:31 -0800
          Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 11:31 +0000
            Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 04:33 -0800
              Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 13:38 +0000
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 05:44 -0800
                Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 14:27 +0000
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 06:55 -0800
                Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 15:37 +0000
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 07:38 -0800
                Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 15:45 +0000
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 08:01 -0800
                Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 16:09 +0000
                Re: Simultaneity - reminder Athel Cornish-Bowden <athel.cb@gmail.com> - 2023-02-07 17:38 +0100
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 09:50 -0800
          Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 05:54 -0800
            Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 06:10 -0800
              Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 07:34 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 07:59 -0800
                Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 16:06 +0000
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 08:29 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 09:08 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 09:58 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 10:08 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 10:25 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 10:36 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 10:44 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 10:52 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 10:58 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 11:55 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 22:28 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-08 02:21 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-08 02:44 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 08:59 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 10:01 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 10:29 -0800
                Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 10:38 -0800
                Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 10:51 -0800
    Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 05:46 -0800
  Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 05:31 -0800
    Re: Simultaneity - reminder Maciej Wozniak <maluwozniak@gmail.com> - 2023-02-07 05:38 -0800
      Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 13:42 +0000
      Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 06:08 -0800
    Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 13:40 +0000
      Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 05:55 -0800
        Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 14:43 +0000
    Re: Simultaneity - reminder Richard Hachel <r.hachel@frite.fr> - 2023-02-07 14:56 +0000
      Re: Simultaneity - reminder rotchm <rotchm@gmail.com> - 2023-02-07 07:37 -0800

csiph-web