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Groups > sci.physics.relativity > #460902

Re: Only irreversible events are detectable

From Thomas 'PointedEars' Lahn <PointedEars@web.de>
Newsgroups sci.physics.relativity
Subject Re: Only irreversible events are detectable
Date 2018-06-11 16:08 +0200
Organization PointedEars Software (PES)
Message-ID <38245433.hzpheEFs3T@PointedEars.de> (permalink)
References <dfQSC.87266$463.31944@fx21.am4> <--Gdnd_HNrC7aYbGnZ2dnUU7_81j4p2d@giganews.com> <pfgta7$1l1s$4@gioia.aioe.org> <pfiej1$mmi$1@dont-email.me> <pfjirc$1u8f$1@gioia.aioe.org>

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The ’nym-shifting troll trolled as "Zandra Sobczak" <acako@raswa.bo>:
                                                           ^^^^^^^^
> Libor Striz wrote:
>> Zandra Sobczak <acako@raswa.bo> Wrote in message:
>>> Tom Roberts wrote:
>>>> […] an "event" is a point in the spacetime manifold.
         ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ 
>>> Exactly. That's why Relativity works. Having "simultaneous" events
>>> would be both absurd and will not work.
>> 
>> False conclusion. There are many simultaneous events in ToR.

I presume that “ToR” is supposed to mean “theory of relativity”; if so,
I do not think that anybody uses that acronym outside of this newsgroup:

<https://en.wikipedia.org/wiki/Tor> (disambiguation page)

It should not be used because there are *two* theories of relativity:
special relativity (SR) and general relativity (GR).

>> The point is, their simultaneity is not absolute.
> 
> This must serves as another proof on your lack of education. You don't
> even know what an event is.

Tom Roberts just explained it.

It really is very simple:

Events are simultaneous if their temporal (time) coordinates are equal.  
Whether those are equal, whether the events are simultaneous, depends on
the frame of reference:

            t       t'
            :      :                 _.- x'
            :     :              _.-' 
            :    :            _.'
            :   :         _.-'         
      t(e₁) + -:- - -_.+-' - - - - -.+'-   t (e₁) = t (e₂)  simultaneous
            : :  _.-'  e₁       .-'  e₂    t'(e₁) > t'(e₂)  not simultaneous
            ::.-'           .-'
     t'(e₁) +--------------------------> x
           ::       .-'
          : :   .-'
         :  :-'                      __
 t'(e₂) :-' :                       |PE

> Keep your mouth shut, stupid. You are extreme.

You do not know English.  And physics.  And…

*PLONK*


PointedEars
-- 
Q: What happens when electrons lose their energy?  
A: They get Bohr'ed.

(from: WolframAlpha)

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Thread

Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-09 14:04 +0100
  Re: Only irreversible events are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-09 08:10 -0700
    Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-09 23:59 +0100
      Re: Only irreversible events are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-09 19:05 -0700
        Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-10 03:36 +0100
          Re: Only irreversible events are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-09 21:55 -0700
            Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-10 08:22 +0100
              Re: Only irreversible events are detectable Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-06-10 10:07 +0200
                Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-10 13:46 +0100
                Re: Only irreversible events are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-10 05:56 -0700
                Re: Only irreversible events are detectable Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-06-10 15:24 +0200
              Re: Only irreversible events are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-10 04:29 -0700
                Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-10 14:36 +0100
                Re: Only irreversible events are detectable Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-06-10 16:18 +0200
                Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-10 16:48 +0100
                Re: Only irreversible events are detectable Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-06-10 21:54 +0200
                Re: Only irreversible events are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-10 11:58 -0700
                Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-11 02:22 +0100
  Re: Only irreversible events are detectable Tom Roberts <tjroberts137@sbcglobal.net> - 2018-06-09 10:37 -0500
    Re: Only irreversible events are detectable Zandra Sobczak <acako@raswa.bo> - 2018-06-09 15:55 +0000
      Re: Only irreversible events are detectable Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-06-10 07:56 +0200
        Re: Only irreversible events are detectable Zandra Sobczak <acako@raswa.bo> - 2018-06-10 16:15 +0000
          Re: Only irreversible events are detectable Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-06-11 16:08 +0200
    Re: Only irreversible events are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-09 18:02 +0100
      CORRECTION eh! Keith Stein <keithstein111@gmail.com> - 2018-06-09 18:15 +0100
        Re: Only irreversible changes are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-11 12:00 +0100
          Re: Only irreversible changes are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-15 11:07 +0100
            Re: Only irreversible changes are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-15 04:11 -0700
              Re: Only irreversible changes are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-15 14:19 +0100
                Re: Only irreversible changes are detectable Gary Harnagel <hitlong@yahoo.com> - 2018-06-15 10:51 -0700
                Re: Only irreversible changes are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-15 19:58 +0100
            Re: Only irreversible changes are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-22 13:00 +0100
              Re: Only irreversible changes are detectable Keith Stein <keithstein111@gmail.com> - 2018-06-26 10:22 +0100

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