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Re: E=mc2

From Sylvia Else <sylvia@email.invalid>
Newsgroups sci.physics.relativity
Subject Re: E=mc2
Date 2018-11-05 12:21 +1100
Message-ID <g49k9dFh9maU1@mid.individual.net> (permalink)
References <f179d481-c820-403c-908f-2cf6c4f02326@googlegroups.com> <g41rgfFq4coU1@mid.individual.net> <prmp0o$4e9$3@gioia.aioe.org>

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On 4/11/2018 11:34 pm, Buck Dehner wrote:
> Sylvia Else wrote:
> 
>> On 2/11/2018 8:43 am, Omar Shabsigh wrote:
>>>    I was not convinced by the derivation of this formula whether by
>>>    Einstein or others. HELP!!!!!!
>>>
>>>
>> You haven't provided much information. You might have an issue with the
>> postulates or with the algebra. Or you might just have a philosophical
>> objection that is incapable of being addressed by any kind of argument.
>> It is generally accepted that the algebra is correct, and the resulting
>> formula fits experimental results.
> 
> Negative. E=mc² is invalid from head to tail. Based entirely on circular
> reasoning and assumed assertions. When you can prove that E=/=mc³ or that
> E=/=mc^1.6 wake me up.
> 

I think this betrays a lack of understanding of what physics is about.

So far, we have no reason to think that we can deduce the laws of the 
universe from first principles. If we could, that would imply that only 
one set of laws is conceivable.

Instead, we make observations of how the universe behaves, and try to 
fit those observations into a mathematical framework that allows us to 
predict the results of observations that have not yet been made.

Einstein looked at the laws of electromagnetism, and formed the view 
that they suggested that the laws of physics depend only on relative 
motion. One ramification of that would be the observed constancy of the 
speed of light. He then showed that this hypothesis leads to a number of 
conclusions, of which E = mc^2 is one. The exponent of two arises 
inexorably from the algebra. No other exponent can be derived that way. 
If the correct exponent is other than two, then the hypothesis must be 
wrong. As has already been pointed out, any exponent other than two 
would also raise the problem that the equation would be dimensionally 
inconsistent.

The hypothesis might indeed have been wrong. If it were, one would 
expect one or more of the conclusions to be found to be false. So far 
they have not been. In particular, E = mc^2 stands up very well.

Sylvia.




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Thread

E=mc2 Omar Shabsigh <omar.shabsigh@gmail.com> - 2018-11-01 14:43 -0700
  Re: E=mc2 Odd Bodkin <bodkinodd@gmail.com> - 2018-11-01 22:55 +0000
  E=mc2 "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-11-01 16:04 -0700
    Re: E=mc2 "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-11-02 09:21 -0700
      Re: E=mc2 "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-11-02 09:52 -0700
        Re: E=mc2 "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-11-02 15:28 -0700
  Re: E=mc2 Omar Shabsigh <omar.shabsigh@gmail.com> - 2018-11-01 17:53 -0700
    Re: E=mc2 Odd Bodkin <bodkinodd@gmail.com> - 2018-11-02 01:02 +0000
    Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-02 18:43 +0100
      Re: E=mc2 mlwozniak@wp.pl - 2018-11-02 11:21 -0700
  Re: E=mc2 Sylvia Else <sylvia@email.invalid> - 2018-11-02 13:35 +1100
    Re: E=mc2 mitchrae3323@gmail.com - 2018-11-01 21:43 -0700
    Re: E=mc2 The Starmaker <starmaker@ix.netcom.com> - 2018-11-01 23:09 -0700
    Re: E=mc2 mlwozniak@wp.pl - 2018-11-02 01:33 -0700
    Re: E=mc2 Buck Dehner <uktoa@yswdoez.cb> - 2018-11-04 12:34 +0000
      Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-04 14:20 +0100
        Re: E=mc2 "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-11-04 05:51 -0800
        Re: E=mc2 Buck Dehner <uktoa@yswdoez.cb> - 2018-11-05 20:51 +0000
          Re: E=mc2 Sylvia Else <sylvia@email.invalid> - 2018-11-06 10:57 +1100
            Re: E=mc2 Ntowicz Usarczyk <iswso@wioioksi.io> - 2018-11-06 20:21 +0000
              Re: E=mc2 Sylvia Else <sylvia@email.invalid> - 2018-11-07 08:57 +1100
                Re: E=mc2 Ntowicz Usarczyk <iswso@wioioksi.io> - 2018-11-07 19:35 +0000
                Re: E=mc2 Sylvia Else <sylvia@email.invalid> - 2018-11-08 09:32 +1100
                Re: E=mc2 Gaston Castaneda <agn@j2awdos.nc> - 2018-11-08 21:13 +0000
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-08 22:26 +0100
                Re: E=mc2 Gaston Castaneda <ucpp@j2adosw.nv> - 2018-11-09 19:46 +0000
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-10 02:47 +0100
              Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-07 00:13 +0100
                Re: E=mc2 Ntowicz Usarczyk <iswso@wioioksi.io> - 2018-11-07 19:38 +0000
      Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 13:17 -0500
        Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-04 20:01 +0100
          Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 14:38 -0500
            Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-04 20:53 +0100
              Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 18:01 -0500
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-05 01:58 +0100
                Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 22:59 -0500
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-05 05:39 +0100
                Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-05 07:54 +0100
                Re: E=mc2 Tom Roberts <tjroberts137@sbcglobal.net> - 2018-11-05 22:33 -0600
                Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-06 06:27 +0100
                Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-06 06:28 +0100
                Re: E=mc2 mlwozniak@wp.pl - 2018-11-04 23:28 -0800
            Re: E=mc2 Odd Bodkin <bodkinodd@gmail.com> - 2018-11-04 22:14 +0000
              Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 18:05 -0500
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-05 02:02 +0100
                Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 22:59 -0500
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-05 05:51 +0100
                Re: E=mc2 Odd Bodkin <bodkinodd@gmail.com> - 2018-11-05 03:00 +0000
                Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 23:15 -0500
                Re: E=mc2 Odd Bodkin <bodkinodd@gmail.com> - 2018-11-05 12:59 +0000
          Re: E=mc2 Buck Dehner <uktea@yswdoiz.cp> - 2018-11-05 21:00 +0000
            Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-13 15:38 +0100
              Re: E=mc2 Gaston Castaneda <uucp@jav4ow.nq> - 2018-11-13 20:22 +0000
                Re: E=mc2 Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-11-13 23:09 +0100
                Re: E=mc2 Shon Wible <shwn@shouwe.wh> - 2018-11-14 15:53 +0000
        Re: E=mc2 Buck Dehner <uktoa@yswdoez.cb> - 2018-11-05 20:54 +0000
        Re: E=mc2 Steve BH <sbharris@gmail.com> - 2018-11-07 22:35 -0800
        Re: E=mc2 Steve BH <sbharris@gmail.com> - 2018-11-07 22:44 -0800
          Re: E=mc2 "David (Kronos Prime) Fuller" <fuller.david@hotmail.com> - 2018-11-08 06:34 -0800
      Re: E=mc2 Sylvia Else <sylvia@email.invalid> - 2018-11-05 12:21 +1100
        Re: E=mc2 benj <benj.fake@gmail.com> - 2018-11-04 23:12 -0500
          Re: E=mc2 Sylvia Else <sylvia@email.invalid> - 2018-11-05 16:30 +1100
  Re: E=mc2 Koobee Wublee <koobee.wublee@gmail.com> - 2018-11-02 16:48 -0700
    Re: E=mc2 mitchrae3323@gmail.com - 2018-11-02 19:07 -0700
    Re: E=mc2 Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-11-08 08:48 +0100

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