Groups > sci.physics.relativity > #375151

Re: Is spacetime curvature experimentally detectable?

From	Dirk Van de moortel <dirkvandemoortel@hotspam.not>
Newsgroups	sci.physics.relativity
Subject	Re: Is spacetime curvature experimentally detectable?
Date	2016-01-29 17:22 +0100
Organization	@somewhere
Message-ID	<n8g3ki$1994$1@gioia.aioe.org> (permalink)
References	<8b47b1db-a710-4294-b2d6-79b432744d58@googlegroups.com>

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Op 29-jan-2016 om 15:11 schreef mlwozniak@wp.pl:
> Famous equivalence principle states, that no experiment can detect
> any difference between gravity and acceleration in Einstein's
> elevator.

No *local* experiment, that is, no experiment on a sufficiently
small spatial and/or temporal scale.

>
> Still, in the thread not far from here, some relativists say, there
> is no spacetime curvature in decelerating car. That's strange. Isn't
> this curvature detectable experimentally?

Only in a very LARGE car. Larger than any car you can possibly
imagine.

> If it is, should be
> detected in the car as well. Maybe it isn't? Or maybe Great Guru was
> wrong? Or maybe our wise relativists haven't made their basic
> homework?

Or maybe the average person in Poland doesn't know what they are
talking about.
Tell them to search for the string "local" in, for instance,
   https://en.wikipedia.org/wiki/Equivalence_principle

Dirk Vdm

Thread

Is spacetime curvature experimentally detectable? mlwozniak@wp.pl - 2016-01-29 06:11 -0800
  Re: Is spacetime curvature experimentally detectable? Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2016-01-29 17:22 +0100
    Re: Is spacetime curvature experimentally detectable? Jon Price <jonelwoodprice@gmail.com> - 2016-01-29 10:28 -0800
      Re: Is spacetime curvature experimentally detectable? Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2016-01-29 20:20 +0100
        Re: Is spacetime curvature experimentally detectable? Polikwaptiwa <polikw@polikwamail.org> - 2016-01-30 15:44 +0000
      Re: Is spacetime curvature experimentally detectable? mlwozniak@wp.pl - 2016-02-01 04:23 -0800
    Re: Is spacetime curvature experimentally detectable? Jon Price <jonelwoodprice@gmail.com> - 2016-01-31 22:27 -0800
      Re: Is spacetime curvature experimentally detectable? mlwozniak@wp.pl - 2016-01-31 23:31 -0800
        Re: Is spacetime curvature experimentally detectable? shan <shan@enterapps.org> - 2016-02-01 18:38 +0000
  Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-29 09:28 -0800
    Re: Is spacetime curvature experimentally detectable? Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 11:29 -0600
      Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-29 09:44 -0800
        Re: Is spacetime curvature experimentally detectable? Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 13:28 -0600
          Re: Is spacetime curvature experimentally detectable? Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2016-01-29 20:37 +0100
            Re: Is spacetime curvature experimentally detectable? Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 14:02 -0600
          Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-29 12:38 -0800
            Re: Is spacetime curvature experimentally detectable? Odd Bodkin <bodkinodd@gmail.com> - 2016-01-29 14:59 -0600
              Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-30 01:15 -0800
                Re: Is spacetime curvature experimentally detectable? Gary Harnagel <hitlong@yahoo.com> - 2016-01-30 05:02 -0800
    Re: Is spacetime curvature experimentally detectable? JanPB <filmart@gmail.com> - 2016-01-29 10:57 -0800
      Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-29 11:10 -0800
      Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-29 21:10 +0100
      Re: Is spacetime curvature experimentally detectable? jamesl51165@gmail.com - 2016-01-29 15:01 -0800
        Re: Is spacetime curvature experimentally detectable? jamesl51165@gmail.com - 2016-01-29 15:09 -0800
        Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-30 10:06 +0100
    Re: Is spacetime curvature experimentally detectable? Tom Roberts <tjroberts137@sbcglobal.net> - 2016-01-30 09:19 -0600
      Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-30 16:33 +0100
        Re: Is spacetime curvature experimentally detectable? paparios <paparios@gmail.com> - 2016-01-30 07:44 -0800
          Re: Is spacetime curvature experimentally detectable? Polikwaptiwa <polikw@polikwamail.org> - 2016-01-30 15:49 +0000
            Re: Is spacetime curvature experimentally detectable? jamesl51165@gmail.com - 2016-01-30 09:21 -0800
              Re: Is spacetime curvature experimentally detectable? Polikwaptiwa <polikw@polikwamail.org> - 2016-01-30 17:30 +0000
          Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-30 18:27 +0100
            Re: Is spacetime curvature experimentally detectable? paparios <paparios@gmail.com> - 2016-01-30 11:56 -0800
              Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-30 12:59 -0800
              Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-31 09:17 +0100
            Re: Is spacetime curvature experimentally detectable? Jon Price <jonelwoodprice@gmail.com> - 2016-01-30 18:16 -0800
              Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-31 09:27 +0100
              Re: Is spacetime curvature experimentally detectable? Dirk Van de moortel <dirkvandemoortel@hotspam.not> - 2016-01-31 11:42 +0100
                Re: Is spacetime curvature experimentally detectable? Jon Price <jonelwoodprice@gmail.com> - 2016-01-31 13:19 -0800
                Re: Is spacetime curvature experimentally detectable? mlwozniak@wp.pl - 2016-01-31 23:26 -0800
                Re: Is spacetime curvature experimentally detectable? mlwozniak@wp.pl - 2016-01-31 23:50 -0800
                Re: Is spacetime curvature experimentally detectable? Gary Harnagel <hitlong@yahoo.com> - 2016-02-01 06:32 -0800
                Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-02-01 18:25 +0100
                Re: Is spacetime curvature experimentally detectable? Gary Harnagel <hitlong@yahoo.com> - 2016-02-01 09:45 -0800
                Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-02-01 19:04 +0100
                Re: Is spacetime curvature experimentally detectable? kenseto <setoken@att.net> - 2016-02-01 09:51 -0800
                Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-02-01 19:23 +0100
                Re: Is spacetime curvature experimentally detectable? kenseto <setoken@att.net> - 2016-02-01 11:29 -0800
                Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-02-01 20:35 +0100
                Re: Is spacetime curvature experimentally detectable? kenseto <setoken@att.net> - 2016-02-01 12:40 -0800
                Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-02-01 21:59 +0100
      Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-30 13:29 -0800
        Re: Is spacetime curvature experimentally detectable? Gary Harnagel <hitlong@yahoo.com> - 2016-01-30 14:04 -0800
          Re: Is spacetime curvature experimentally detectable? Maciej Woźniak <mlwozniak@wp.pl> - 2016-01-31 09:21 +0100
        Re: Is spacetime curvature experimentally detectable? rotchm <rotchm@gmail.com> - 2016-01-31 16:43 -0800
          Re: Is spacetime curvature experimentally detectable? Koobee Wublee <koobee.wublee@gmail.com> - 2016-01-31 20:47 -0800
            Re: Is spacetime curvature experimentally detectable? JanPB <filmart@gmail.com> - 2016-02-01 09:00 -0800
  Re: Is spacetime curvature experimentally detectable? jamesl51165@gmail.com - 2016-01-29 10:54 -0800

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