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Re: [OM] Gravitationals waves--yes they do exist and so do Black holes

Subject: Re: [OM] Gravitationals waves--yes they do exist and so do Black holes
From: Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
Date: Sat, 13 Feb 2016 20:05:29 -0500
I'm not at all skeptical of the discovery or of the way the interferometer works. I'm just skeptical that the precision of measurement is 1/10,000 the width of a proton. They still have to use lasers to do the measurement. I think the specified precision is far, far shorter than the wavelength of light from the laser. To make the measurement you have to be able to get a single wave out of phase with another. Therefore the precision is some fraction of the wavelength of the laser they're using.

Chuck Norcutt


On 2/13/2016 4:02 PM, ChrisB wrote:
I remain sceptical as well, Chuck.  I disbelieve most physicists when they witter on about 
the age of the universe, or how it started – for instance.  As far as I can make out 
it’s mostly guesswork, inspired or no . . .

Chris

On 13 Feb 16, at 18:30, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx> wrote:

I'm skeptical that such precision is measurable.  I think there may be a typo.  
Even the width of a proton is not well known.

Chuck Norcutt


On 2/12/2016 11:50 AM, Bob Whitmire wrote:
The LIGO detectors can detect perturbations as small as 1/10000 the width of a 
proton with the interferometers
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