Groups > sci.physics.relativity > #366321

Re: Sub-Hertz Gravity Wave Detection

Newsgroups	sci.physics.relativity
Date	2015-10-06 08:57 -0700
References	<muutgc$mn7$1@speranza.aioe.org> <a_2dnREvm_nNRY7LnZ2dnUU7-W2dnZ2d@giganews.com> <mv0lhe$f8u$1@speranza.aioe.org>
Message-ID	<3e4e147a-e586-4d85-abb4-8188bc62e988@googlegroups.com> (permalink)
Subject	Re: Sub-Hertz Gravity Wave Detection
From	Gary Harnagel <hitlong@yahoo.com>

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On Tuesday, October 6, 2015 at 8:23:47 AM UTC-6, gilber34 wrote:
>
> On 10/6/2015 9:18 AM, Sam Wormley wrote:
> >
> >
> >    Space certainly is there and space has measurable properties.
> >    Wikipedia is your friend.
> 
> the real question is, if you are measuring a length with a ruler, and 
> both the length and ruler are in the same gravitational field, and a 
> gravitational wave passes, arn't both ruler and length affected ?  by 
> nearly the same amount ?

LIGO is an interferometer, similar to a Michelson interferometer.  It has
two perpendicular arms and is sensitive to a phase shift between beams
in each arm.  As Sam said, Wiki is your friend:

https://en.wikipedia.org/wiki/LIGO

Gary

Thread

Sub-Hertz Gravity Wave Detection Katarina Bulakova <katabu@transmatric.org> - 2015-10-05 22:27 +0000
  Re: Sub-Hertz Gravity Wave Detection Odd Bodkin <bodkinodd@gmail.com> - 2015-10-05 17:40 -0500
    Re: Sub-Hertz Gravity Wave Detection Katarina Bulakova <katabu@transmatric.org> - 2015-10-05 23:07 +0000
      Re: Sub-Hertz Gravity Wave Detection Helmut Wabnig <hwabnig@.- --- -.dotat> - 2015-10-06 10:33 +0200
        Re: Sub-Hertz Gravity Wave Detection kefischer <emoneyjoe@iglou.com> - 2015-10-06 04:40 -0400
          Re: Sub-Hertz Gravity Wave Detection Poutnik <Poutnik4NNTP@gmail.com> - 2015-10-06 10:50 +0200
            Re: Sub-Hertz Gravity Wave Detection R Kym Horsell <kym@kymhorsell.com> - 2015-10-06 09:55 +0000
              Re: Sub-Hertz Gravity Wave Detection mlwozniak@wp.pl - 2015-10-06 03:35 -0700
              Re: Sub-Hertz Gravity Wave Detection kefischer <emoneyjoe@iglou.com> - 2015-10-06 06:41 -0400
                Re: Sub-Hertz Gravity Wave Detection Lofty Goat <rlwatkins@gmail.com> - 2015-10-09 14:16 -0500
            Re: Sub-Hertz Gravity Wave Detection Katarina Bulakova <katabu@transmatric.org> - 2015-10-06 19:21 +0000
              Re: Sub-Hertz Gravity Wave Detection Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-07 19:13 -0400
      Re: Sub-Hertz Gravity Wave Detection Odd Bodkin <bodkinodd@gmail.com> - 2015-10-06 07:46 -0500
        Re: Sub-Hertz Gravity Wave Detection Katarina Bulakova <katabu@transmatric.org> - 2015-10-06 18:59 +0000
        Re: Sub-Hertz Gravity Wave Detection mlwozniak@wp.pl - 2015-10-07 06:29 -0700
    Re: Sub-Hertz Gravity Wave Detection mlwozniak@wp.pl - 2015-10-06 02:18 -0700
    Re: Sub-Hertz Gravity Wave Detection RichD <r_delaney2001@yahoo.com> - 2015-10-06 16:23 -0700
      Re: Sub-Hertz Gravity Wave Detection Odd Bodkin <bodkinodd@gmail.com> - 2015-10-07 08:01 -0500
  Re: Sub-Hertz Gravity Wave Detection dlzc <dlzc1@cox.net> - 2015-10-05 16:01 -0700
    Re: Sub-Hertz Gravity Wave Detection Katarina Bulakova <katabu@transmatric.org> - 2015-10-05 23:13 +0000
  Re: Sub-Hertz Gravity Wave Detection Sam Wormley <swormley1@gmail.com> - 2015-10-06 09:18 -0500
    Re: Sub-Hertz Gravity Wave Detection gilber34 <fafa@invalid.com> - 2015-10-06 09:23 -0500
      Re: Sub-Hertz Gravity Wave Detection Gary Harnagel <hitlong@yahoo.com> - 2015-10-06 08:57 -0700
        Re: Sub-Hertz Gravity Wave Detection Katarina Bulakova <katabu@transmatric.org> - 2015-10-06 19:06 +0000
      Re: Sub-Hertz Gravity Wave Detection Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-06 12:09 -0400
      Re: Sub-Hertz Gravity Wave Detection Tom Roberts <tjroberts137@sbcglobal.net> - 2015-10-07 16:22 -0500
    Re: Sub-Hertz Gravity Wave Detection mlwozniak@wp.pl - 2015-10-07 06:36 -0700
  Re: Sub-Hertz Gravity Wave Detection Yousuf Khan <bbbl67@spammenot.yahoo.com> - 2015-10-06 11:59 -0400
  Re: Sub-Hertz Gravity Wave Detection Alan Folmsbee <omnilobe@gmail.com> - 2015-10-06 18:56 -0700
    Re: Sub-Hertz Gravity Wave Detection Natalina Nazvarova <natana42@hotmail.com> - 2015-10-07 15:04 +0000
      Re: Sub-Hertz Gravity Wave Detection kefischer <emoneyjoe@iglou.com> - 2015-10-07 21:46 -0400
  Re: Sub-Hertz Gravity Wave Detection Tom Roberts <tjroberts137@sbcglobal.net> - 2015-10-07 16:16 -0500
    Re: Sub-Hertz Gravity Wave Detection mlwozniak@wp.pl - 2015-10-07 23:26 -0700
    Re: Sub-Hertz Gravity Wave Detection Natalina Nazvarova <natana42@hotmail.com> - 2015-10-08 17:38 +0000

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