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Re: [Phys-l] gravitational waves.

Hi all-
The proposed analogy with the Higgs search at the LHC is a poor one. There are credible proposals for a no0-Higgs scenario as part of the standard model. Stronge evidence for the existence of gravity waves is found in the observations for which Taylor and Hulse received a Nobel.

"Trust me. I have a lot of experience at this."
General Custer's unremembered message to his men,
just before leading them into the Little Big Horn Valley

On Wed, 27 Oct 2010, Hugh Haskell wrote:

At 06:54 -0500 10/26/2010, Bill Nettles wrote:

It did bother me a bit that there was never any indication on the
poster that we haven't detected any gravitational waves. I'm
reluctant to post the poster without a disclaimer so that my
students won't assume the waves have been measured. Contrast this
with the publicity surrounding LHC and the Higgs particle ... it's
very clear that it hasn't been measured.

It is true that no direct detection of gravity waves has occurred,
but the fact that the rotational frequency decay rate of several
carefully measured pulsars can be exactly accounted for by the
emission of gravitational energy (gravitons) is considered pretty
conclusive evidence of their existence by the community.

One must also recall that the existence of neutrinos was assumed to
be settled long before they were actually detected (otherwise, why
would it have taken 40 years before the feat was recognized by the
Nobel Committee?).

I do agree. however. that in the interests of full disclosure the
chart needs to be clear that the waveform graphs are theoretical, and
no "direct" detection of gravity waves has yet taken place--which
isn't to say that there remains any significant controversy over
their existence.


Hugh Haskell

It isn't easy being green.

--Kermit Lagrenouille
Forum for Physics Educators