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

[Chuck Norcutt]

Sounds to me like you do know what you're talking about.  I think the 
vernier guage is a good analogy.
Chuck Norcutt


On 2/15/2016 6:28 AM, Jez Cunningham wrote:
> Chuck - I've no idea what I'm talking about (as usual) but I would guess
> that you don't have to just look for nulling over one wavelength. A bit
> like a vernier gauge in the real world (?) you could look over many
> wavelengths and if the hundredth pair nulled you would be able to measure
> to 1/100th of a wavelength.
> Jez
>
> On 15 February 2016 at 03:06, Chuck Norcutt <chucknorcutt@xxxxxxxxxxxxxxxx>
> wrote:
>
> > AFAIK the principle way to use interference is nulling the signal.  If two
> > waves are overlapped and out of phase by 1/2 a wave length the signal will
> > be nulled.  I'm sure that one can probably measure distances of less than
> > 1/2 wave but I doubt that that extends very far.
> >
> > As Larry Plummer said later:  The basis of all this is atom
> > interferometry.  I don't know what it is but it must be mucho shorter
> > distances than wavelengths of light.
> >
> > Chuck Norcutt
> >
> >
> > On 2/14/2016 4:03 PM, Moose wrote:
> >
> > > On 2/14/2016 11:13 AM, Chuck Norcutt wrote:
> > >
> > > > 10**-20 meter, as Dr. Mike noted, is way, way, way smaller than nano.
> > > > Nano is only 10**-9.  Pico is smaller but still only 10**-12.  I still
> > > > can't imagine how anyone is measuring that with lasers.  UV light
> > > > ranges from 10 to 400 nanometers.  Much worse, even, than trying to
> > > > measure the size of a virus using a meter stick.  Anyone got an
> > > > explanation?
> > > I know absolutely nothing about all this. It does strike, me, as a
> > > matter of simple physics, that interference patterns may reveal things
> > > smaller than the wavelengths of the interfering waves - I think. :-)
> > >
> > > Why are you folks using the double asterisk, 10**-20, instead of the
> > > caret, 10^-20 as power notation? The caret is what spreadsheets use, and
> > > thus what I've used for the several decades. I can't recall the notation
> > > for the mainframe calculating programs I used before that. Before that,
> > > it was slide rules ...
> > >
> > > Speculative and Curious Moose
> > >
> > > --
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