In uk.sci.astronomy message <2caf0ef6-0f1b-4554-b57b-6ace5eb7fc09@e32g20
00prn.googlegroups.com>, Sun, 6 Jan 2008 03:55:45,
shiv.nath.kk@gmail.com posted:

>An international team of physicists, including University of Oregon
>scientists, has concluded that last February's intense burst of gamma
>rays possibly coming from the Andromeda Galaxy lacked a gravitational
>wave. That absence, they say, rules out an initial interpretation that
>the burst came from merging neutron stars or black holes within
>Andromeda.

I don't recall that anyone has ever detected a gravitational wave
directly.

Therefore, the lack of an observation in this case is also compatible
with the hypothesis that gravitational wave detectors don't work.

I've never known why they think that the wave will not stretch the
photons in the interferometer by just as much as it stretches the
interferometer itself.

In principle, ISTM, "gravitational wave interferometers cannot see
anything", if true, could be as fruitful as the corresponding remark
about Michelson-Morley,

-- 
 (c) John Stockton, Surrey, UK.  ?@merlyn.demon.co.uk   Turnpike v6.05   MIME.
 Web  <URL:http://www.merlyn.demon.co.uk/> - FAQqish topics, acronyms & links;
  Astro stuff via astron-1.htm, gravity0.htm ; quotings.htm, pascal.htm, etc.
 No Encoding. Quotes before replies. Snip well. Write clearly. Don't Mail News.

"Dr J R Stockton"  wrote:

> I don't recall that anyone has ever detected a gravitational wave
> directly.
>
> Therefore, the lack of an observation in this case is also compatible
> with the hypothesis that gravitational wave detectors don't work.

Or that gravitational waves don't exist.  :-o