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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