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Groups > sci.physics > #680564

GPS satellites.

From Jeff-Relf.Me @.
Message-ID <Jeff-Relf.Me@Apr.9--8.49pm.Seattle.2018> (permalink)
References (1 earlier) <2YadnVKLRe-t5lbHnZ2dnUU7_81i4p2d@giganews.com> <riLyC.860939$Ml.54730@fx24.am4> <pag3kt$25d$1@dont-email.me> <Jeff-Relf.Me@Apr.9--10.45am.Seattle.2018> <vpbocd5n4l6fmk08a3k9pftje1sqgenmk2@4ax.com>
Newsgroups sci.physics, comp.os.linux.advocacy, rec.arts.sf.written, sci.physics.relativity, alt.astronomy
Subject GPS satellites.
Organization usenet-news.net
Date 2018-04-09 20:49 -0700

Cross-posted to 5 groups.

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> > GPS satellites are the perfect way to explain relativity,
> > because everyone can relate to it.
> > 
> > On Earth, the satellite's signal is BlueShifted by gravity
> > and RedShifted by its velocity, relative to earth's core.
> 
> While that is true, the relativistic correction in GPS satellites
> is in the timebase, not the transmission frequency.

Relativity is used to adjust the frequency of the orbiting clocks;
c, the speed of light, is a known constant;
so time and distance are easily derived.

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Thread

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

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