"oriel36" wrote in message
...

On Dec 9, 9:55 pm, Martin Brown
wrote:
On 08/12/2012 23:09, Quadibloc wrote:

On Dec 7, 12:58 pm, oriel36 wrote:
The use of VLBI has about the same intellectual substance as
photographing the wandering Sun analemma

In the sense that both are based on the knowledge of the physical laws
that govern the universe he is actually right.

The great thing about VLBI and any other large network of interferometer
telscopes is that with N scopes you get N(N-1)(N-2)/6 good phase
observables Jennison (1958) and N(N-1)(N-2)(N-3)/12 good amplitude
observables. It is for this reason that the VLBI network scopes tend to
take chances in stormy weather to stay on the network. Dropping from N=9
to 8 is a big hit.

http://en.wikipedia.org/wiki/Closure_phase

You are saying this to a newsgroup filled with people who have
frequently seen with their own eyes that the resolving power of a
telescope increases with its aperture - which is another manifestation
of the wave nature of light (Newton was partial to the opposing
corpuscular theory) on which VLBI is based.

At long last, have you no sense of irony?

Much harder to explain is intensity interferometry where photon counting
detectors were used to measure the diameters of the most promising super
giants were measured by Hanbury-Brown and Twiss at Jodrell Bank to prove
the concept and later with a much larger setup at Narrabi in South
Africa. The book is fairly rare but the technique led to a very fierce
debate in the physics community about it.

http://en.wikipedia.org/wiki/Hanbury...d_Twiss_effect

Wave paricle duality has some very interesting consequences. These guys
deserve much better recognition for their ground breaking research!

I don't actually like thi semi-classical derivation but it is online.
ISTR someone in s.e.d posted a link to a scan of the book but I don't
believe in copyright infringement so I am not reposting it here.

http://szczypka.web.cern.ch/szczypka...wiss/twiss.pdf

Note that in the implementation of the H-B intensity interferometer the
detectors were photon counting devices 931A phototubes if memory serves.
The correlation are real and determined by the baeline length and the
angular diameter of the source.

Regards,
Martin Brown

It doesn't matter whether a pendulum clock is used or VLBI,the
determination that local tracking of a star in stellar circumpolar
motion reflects daily rotation is false by virtue that it is a
homocentric determination which happens to be one step lower that
geocentricity and equivalent to astronomical oblivion.

I notice with greater frequency that they no longer call their
imaginative conceptions by the name of 'theories' but 'models' and the
first one was trying to model the motions of the Earth using the 24
hour AM/PM cycle allied with the Lat/Long system which in turn happen
to be an extension of the 1461 day calendar cycle in a format of 365
day/366 day rotations.

You don't have a feel for astronomical timekeeping nor structural
astronomy Brown and although you and your colleagues will continue
like this for a while,even a long while,but technically you are
finished as astronomy recovers the ability to correlate cause and
effect between dynamics and what happens on Earth.
================================================== ==
Rut roh... Kelleher is now preaching astrology. My star sign is Cepheus,
Kelleher. What do the dynamic stars foretell my future to be, here on Earth?
Will I go on a journey? Will I meet a short, blond and chubby woman?
Consult the crystal ball and the star charts for me, Kelleher.

-- This message is brought to you from the keyboard of
Lord Androcles, Zeroth Earl of Medway