Re: The Speeed of Light

From	Odd Bodkin <bodkinodd@gmail.com>
Newsgroups	sci.physics, sci.physics.relativity
Subject	Re: The Speeed of Light
Date	2018-04-09 19:34 +0000
Organization	Aioe.org NNTP Server
Message-ID	<pagf80$1eea$1@gioia.aioe.org> (permalink)
References	<5AC2995B.649C@ix.netcom.com> <zHtyC.354924$3o5.167196@fx20.am4> <2YadnVKLRe-t5lbHnZ2dnUU7_81i4p2d@giganews.com> <riLyC.860939$Ml.54730@fx24.am4>

Cross-posted to 2 groups.

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Keith Stein <keithstein111@gmail.com> wrote:
> On 09/04/2018 15:39, Tom Roberts wrote:
>> On 4/8/18 2:02 PM, Keith Stein wrote:
>>> The speed of light in vacuum is a silly concept,
>>> because what can this speed be relative to ?
>> 
>> Like ALL speeds, it is relative to the coordinates used to measure it.
> 
> :)  What is 'silly' Mr.Roberts is to believe that the velocity of any 
> given light beam could possibly be the same value 'c' relative to all 
> inertial coordinates, irrespective of how those coordinates are moving 
> relative to each other.

Why is that silly? 
Please try to make some case for your statement, using argument rather than
gut instinct. You will very quickly land on the assumption you’re making,
which ends up being wrong. 

> 
>> By convention, physicists use locally inertial coordinates unless 
>> otherwise specified. Around here that convention is not so well 
>> established (mostly because many people don't understand the need for it).
>> 
>> Tom Roberts
>> 
> 
> 



-- 
Odd Bodkin -- maker of fine toys, tools, tables

Thread

The Speeed of Light The Starmaker <starmaker@ix.netcom.com> - 2018-04-02 13:58 -0700
  Re: The Speeed of Light Siri Cruise <chine.bleu@yahoo.com> - 2018-04-02 16:15 -0700
  Re: The Speeed of Light SolomonW <SolomonW@citi.com> - 2018-04-03 09:46 +1000
  Re: The Speeed of Light Tom Roberts <tjroberts137@sbcglobal.net> - 2018-04-02 22:32 -0500
    Re: The Speeed of Light Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-03 07:31 +0200
  Re: The Speeed of Light Alan Folmsbee <omnilobe@gmail.com> - 2018-04-02 22:44 -0700
  Re: The Speeed of Light casagiannoni@optonline.net - 2018-04-04 14:23 -0400
  Re: The Speeed of Light Keith Stein <keithstein111@gmail.com> - 2018-04-08 20:02 +0100
    Re: The Speeed of Light Libor 'Poutnik' Stříž <poutnik@privacy.net> - 2018-04-08 22:03 +0200
      Re: The Speeed of Light Lofty Goat <rlwatkins@gmail.com> - 2018-05-05 22:16 -0500
    Re: The Speeed of Light Edward Prochak <edprochak@gmail.com> - 2018-04-08 18:10 -0700
    Re: The Speeed of Light Tom Roberts <tjroberts137@sbcglobal.net> - 2018-04-09 09:39 -0500
      Re: The Speeed of Light Keith Stein <keithstein111@gmail.com> - 2018-04-09 16:04 +0100
        Re: The Speeed of Light Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-04-09 18:16 +0200
          GPS satellites. Jeff-Relf.Me  @. - 2018-04-09 10:45 -0700
            Re: GPS satellites. "reber G=emc^2" <herbertglazier0@gmail.com> - 2018-04-09 11:33 -0700
              Re: GPS satellites. "hanson" <hanson@quick.net> - 2018-04-09 12:34 -0700
            Re: GPS satellites. J. Clarke <jclarke.873638@gmail.com> - 2018-04-09 23:28 -0400
              GPS satellites. Jeff-Relf.Me  @. - 2018-04-09 20:49 -0700
              Re: GPS satellites. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-10 06:00 +0200
              Re: GPS satellites. Tom Roberts <tjroberts137@sbcglobal.net> - 2018-04-11 14:36 -0500
                Re: GPS satellites. J. Clarke <jclarke.873638@gmail.com> - 2018-04-11 22:22 -0400
                Re: GPS satellites. Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-12 04:38 +0200
        Re: The Speeed of Light Edward Prochak <edprochak@gmail.com> - 2018-04-09 09:51 -0700
        Re: The Speeed of Light Tom Roberts <tjroberts137@sbcglobal.net> - 2018-04-09 14:00 -0500
        Re: The Speeed of Light Odd Bodkin <bodkinodd@gmail.com> - 2018-04-09 19:34 +0000
        Re: The Speeed of Light Lofty Goat <rlwatkins@gmail.com> - 2018-04-09 21:10 -0500
          Re: The Speeed of Light Keith Stein <keithstein111@gmail.com> - 2018-04-10 17:56 +0100
            Re: The Speeed of Light Odd Bodkin <bodkinodd@gmail.com> - 2018-04-10 18:39 +0000
            Re: The Speeed of Light Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-04-10 20:40 +0200
            Re: The Speeed of Light Lofty Goat <rlwatkins@gmail.com> - 2018-04-10 14:23 -0500
              LET EXPERIMENT DECIDE ('cos i think Relativists are Charlatans eh!) Keith Stein <keithstein111@gmail.com> - 2018-04-10 21:28 +0100
            Re: The Speeed of Light Tom Roberts <tjroberts137@sbcglobal.net> - 2018-04-14 09:11 -0500
              Re: The Speeed of Light Keith Stein <keithstein111@gmail.com> - 2018-04-14 18:44 +0100
      Re: The Speeed of Light Whisper <beaver999@ozemail.com> - 2018-04-10 20:43 +1000
        Speed of light (was: The Speeed of Light) Thomas 'PointedEars' Lahn <PointedEars@web.de> - 2018-04-12 06:25 +0200
    Re: The Speeed of Light Edward Prochak <edprochak@gmail.com> - 2018-04-11 09:58 -0700
  Re: The Speeed of Light casagiannoni@optonline.net - 2018-04-08 19:51 -0400
    Re: The Speeed of Light Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-04-09 06:43 +0200
      Re: The Speeed of Light Paul Colquhoun <newsposter@andor.dropbear.id.au> - 2018-04-09 16:52 +1000
        Re: The Speeed of Light Libor Striz <poutnik4REMOVEnntp@CAPITALSgmail.com> - 2018-04-09 09:23 +0200

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