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Re: LIGO experiment seen gravitational waves?

From Thomas Heger <ttt_heg@web.de>
Newsgroups sci.physics.relativity, sci.physics
Subject Re: LIGO experiment seen gravitational waves?
Date 2015-10-03 07:10 +0200
Message-ID <d796b7FmnftU1@mid.individual.net> (permalink)
References <muk0tc$1ln$1@speranza.aioe.org> <d75hn3Fq1boU1@mid.individual.net> <d76dnrF1qneU1@mid.individual.net>

Cross-posted to 2 groups.

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Am 02.10.2015 05:58, schrieb Thomas Heger:
> Am 01.10.2015 22:00, schrieb Thomas Heger:
>> Am 01.10.2015 21:18, schrieb Kent Beeler:
>>> On 25 September, a sensational rumour appeared on Twitter:
>>> Lawrence Krauss, a cosmologist, reported hearing that the
>>> world’s largest gravitational-wave observatory had seen a
>>> signal, barely a week after its official re-opening.
>>>
>>> http://www.nature.com/news/has-giant-ligo-experiment-seen-gravitational-waves-1.18449?WT.mc_id=SFB_NNEWS_1508_RHBox
>>>
>>>
>>
>>
>> Isn't Earth gravity caused by the Earth?
>>
>> So: what exactly does LIGO measure and what is a 'gravitational wave'?
>>
>> If something happens with our homeplanet or if the Earth is 'catching'
>> some sort of remote influences, this could eventually cause such a wave.
>>
>> But somehow I thought they wanted to measure remote galaxies, merging of
>> black holes or the remains of the big-bang (or something like that).
>>
>> But I don't think, this could work, since the Earth is much closer than
>> such galaxies.
>>
>
> The distance plays a mayor role in gravity, since gravity follows an
> inverse square law.
>
> The LIGO experiment has a distance to Earth surface of zero and we find
> usual Earth gravity there.
>
> The influence of gravity from nearest galaxies is quite small, since the
> nearest galaxy outside the milky way is
>
> https://en.wikipedia.org/wiki/Canis_Major_Overdensity
>
> and that 28,000 lightyears away.
>
> The nearest mayor galaxy is Andromeda and that 2.5 million lightyears
> away. This is certainly far enough to leave little traces of its gravity
> measurable here on Earth.
>
> But actually not gravity should be measured by LIGO, but ripples within.
>
> I don't think it's possible, but imagine the Andromeda galaxy could
> switch its own gravity on and off once a minute. We then would have a
> gravity square-wave of 1/60 Hz.
>
> This would be a tremendous wave, since gravity of a galaxy is rather huge.
>
> But this wave gets weaker by an inverse square law. And distance to
> Andromeda is a fantastically large number (in meters). Now this number
> needs to be squared and by this number, the wave gets smaller.
>

I haven't figured that out, but actually there 'gravitational waves' on 
Earth:

a truck passes by on the street, than we are attracted by the moving 
mass of the truck.

Only the force is VERY small. But a very sensitive detector of gravity 
waves could eventually detect such an influence (bird flying by, bee 
sitting on the detector, wind against the building or similar).

Now such unwanted disturbance should be compared to the effect a device 
tries to measure.

The effect should then be a few orders of magnitude larger than 
unavoidable 'noise', since otherwise the measurement will not work.

Now I assume, that gravity waves caused by remote galaxies are smaller 
than the effect of fly poo.


TH

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Thread

LIGO experiment seen gravitational waves? Kent Beeler <kenbee@jefffast.au> - 2015-10-01 19:18 +0000
  Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-01 22:00 +0200
    Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-02 05:58 +0200
      Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-03 07:10 +0200
        Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-03 04:02 -0700
          Re: LIGO experiment seen gravitational waves? Kent Beeler <kenbee@jefffast.au> - 2015-10-03 15:03 +0000
        Re: LIGO experiment seen gravitational waves? Kent Beeler <kenbee@jefffast.au> - 2015-10-03 15:00 +0000
          Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-03 21:31 +0200
            Re: LIGO experiment seen gravitational waves? Kent Beeler <kenbee@jefffast.au> - 2015-10-03 21:20 +0000
              Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-04 05:30 +0200
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-04 06:14 +0000
                Re: LIGO experiment seen gravitational waves? Kent Beeler <kenbee@jefffast.au> - 2015-10-04 17:07 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-04 22:32 +0200
                Re: LIGO experiment seen gravitational waves? Kent Beeler <kenbee@jefffast.au> - 2015-10-04 20:51 +0000
                Re: LIGO experiment seen gravitational waves? gilber34 <fafa@invalid.com> - 2015-10-04 16:39 -0500
                Re: LIGO experiment seen gravitational waves? John Heath <heathjohn2@gmail.com> - 2015-10-04 16:07 -0700
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-05 05:33 +0000
                Re: LIGO experiment seen gravitational waves? John Heath <heathjohn2@gmail.com> - 2015-10-04 23:44 -0700
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-05 08:02 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-05 21:44 +0200
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-06 22:31 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-07 02:36 +0200
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-07 01:55 +0000
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-07 19:59 +0000
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-10-07 17:00 -0400
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-07 23:33 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-08 06:13 +0200
                Re: LIGO experiment seen gravitational waves? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-10-08 11:32 -0500
                Re: LIGO experiment seen gravitational waves? Natalina Nazvarova <natana42@hotmail.com> - 2015-10-08 17:06 +0000
                Re: LIGO experiment seen gravitational waves? John Gogo <jfgogo22@yahoo.com> - 2015-10-09 19:11 -0700
                Re: LIGO experiment seen gravitational waves? Natalina Nazvarova <natana42@hotmail.com> - 2015-10-10 11:42 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-10 06:24 +0200
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-11 19:00 -0700
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-08 17:18 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-08 20:25 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-08 13:04 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-09 08:25 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-09 05:25 -0700
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-09 05:52 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-10 06:55 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-10 04:41 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-14 05:00 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-13 20:06 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-14 22:03 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-14 14:45 -0700
                Re: LIGO experiment seen gravitational waves? xxein1@att.net - 2015-10-14 19:59 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-15 05:03 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-15 05:21 -0700
                Re: LIGO experiment seen gravitational waves? xxein1@att.net - 2015-10-15 06:33 -0700
                Re: LIGO experiment seen gravitational waves? xxein1@att.net - 2015-10-15 06:46 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-15 07:58 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-15 08:38 -0700
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-10-15 14:13 -0400
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-15 21:23 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-15 13:28 -0700
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-19 00:43 -0700
                Re: LIGO experiment seen gravitational waves? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-10-16 10:26 -0500
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-17 07:35 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-17 03:20 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-18 06:49 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-18 05:02 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-18 22:37 +0200
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-18 14:03 -0700
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-18 15:34 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-19 05:21 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-18 20:56 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-19 20:56 +0200
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-19 12:14 -0700
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-19 13:40 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-20 05:07 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-19 21:07 -0700
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-20 07:59 +0000
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-20 01:26 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-20 21:37 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-20 13:59 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-21 05:03 +0200
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-10-20 23:38 -0400
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-21 04:22 -0700
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-21 05:03 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-24 04:19 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-23 20:08 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-24 08:24 +0200
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-24 04:04 -0700
                Re: LIGO experiment seen gravitational waves? Erebus Xanthopoulos <elefxa@spacepark.au> - 2015-10-24 11:13 +0000
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-25 05:29 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-25 04:36 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-26 04:42 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-26 03:49 -0700
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-26 05:03 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-27 01:43 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-26 20:27 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-27 05:50 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-27 04:22 -0700
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-27 04:59 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-28 05:07 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-28 04:10 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-29 05:49 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-29 04:29 -0700
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-29 05:22 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-29 19:33 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-29 14:10 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-30 07:00 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-30 05:00 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-31 06:21 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-10-31 04:28 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-11-01 05:49 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-11-01 05:01 -0800
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-11-02 04:35 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-11-02 03:21 -0800
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-02 03:38 -0800
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-11-05 04:46 +0100
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-11-01 07:55 +0100
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-10-20 23:08 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-19 07:04 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 05:58 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 06:18 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 06:33 -0700
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-10-17 10:24 -0400
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 11:57 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 12:25 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 12:43 -0700
                Re: LIGO experiment seen gravitational waves? fuller.david@hotmail.com - 2015-10-17 06:30 -0700
                Re: LIGO experiment seen gravitational waves? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-10-17 10:06 -0500
                Re: LIGO experiment seen gravitational waves? Koobee Wublee <koobee.wublee@gmail.com> - 2015-10-18 00:07 -0700
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-11-07 05:50 +0100
                Re: LIGO experiment seen gravitational waves? Gary Harnagel <hitlong@yahoo.com> - 2015-11-07 05:08 -0800
                Re: LIGO experiment seen gravitational waves? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-07 09:16 -0600
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-11-07 18:46 +0100
                Re: LIGO experiment seen gravitational waves? Odd Bodkin <bodkinodd@gmail.com> - 2015-11-09 08:04 -0600
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-09 06:13 -0800
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-09 06:49 -0800
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-09 07:08 -0800
                Re: LIGO experiment seen gravitational waves? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-09 22:32 -0600
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-09 23:35 -0800
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-10 03:24 -0800
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-10 03:36 -0800
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-10 04:07 -0800
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-10 04:53 -0800
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-10 05:21 -0800
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-10 05:39 -0800
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-10 05:56 -0800
                Re: LIGO experiment seen gravitational waves? mlwozniak@wp.pl - 2015-11-10 06:42 -0800
                Re: LIGO experiment seen gravitational waves? Open Collector <openc@opencollector.org> - 2015-11-10 15:04 +0000
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-10 07:10 -0800
                Re: LIGO experiment seen gravitational waves? Maciej Woźniak <mlwozniak@wp.pl> - 2015-11-11 09:59 +0100
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-11 02:53 -0800
                Re: LIGO experiment seen gravitational waves? Maciej Woźniak <mlwozniak@wp.pl> - 2015-11-11 12:10 +0100
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-11 05:02 -0800
                Re: LIGO experiment seen gravitational waves? Maciej Woźniak <mlwozniak@wp.pl> - 2015-11-11 14:49 +0100
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-11 06:02 -0800
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-11-11 09:37 -0500
                Re: LIGO experiment seen gravitational waves? Open Collector <openc@opencollector.org> - 2015-11-10 14:58 +0000
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-10 04:09 -0800
                Re: LIGO experiment seen gravitational waves? Ludwig Böhm <ludwb@widespectrum.com> - 2015-11-12 00:02 +0000
                Re: LIGO experiment seen gravitational waves? Tom Roberts <tjroberts137@sbcglobal.net> - 2015-11-10 09:17 -0600
                Re: LIGO experiment seen gravitational waves? Maciej Woźniak <mlwozniak@wp.pl> - 2015-11-11 10:06 +0100
                Re: LIGO experiment seen gravitational waves? Open Collector <openc@opencollector.org> - 2015-11-09 19:03 +0000
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-09 14:48 -0800
                Re: LIGO experiment seen gravitational waves? Ludwig Böhm <ludwb@widespectrum.com> - 2015-11-12 00:08 +0000
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-11 16:50 -0800
                Re: LIGO experiment seen gravitational waves? Ludwig Böhm <ludwb@widespectrum.com> - 2015-11-12 16:30 +0000
                Re: LIGO experiment seen gravitational waves? paparios <paparios@gmail.com> - 2015-11-12 09:08 -0800
                Re: LIGO experiment seen gravitational waves? shuba <tim@sh.uba> - 2015-10-09 19:45 +0000
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-10-09 19:18 -0400
                Re: LIGO experiment seen gravitational waves? Odd Bodkin <bodkinodd@gmail.com> - 2015-10-11 16:11 -0500
                Re: LIGO experiment seen gravitational waves? Thomas Heger <ttt_heg@web.de> - 2015-10-10 06:29 +0200
                Re: LIGO experiment seen gravitational waves? kefischer <emoneyjoe@iglou.com> - 2015-10-04 18:50 -0400

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