On Apr 22, 1:50 am, HW@....(Henri Wilson) wrote:
On 21 Apr 2007 18:28:48 -0700, Jeff Root wrote:



Henry Wilson replied to Jeff Root:

George replied to Henry:

http://www.users.bigpond.com/hewn/EFdra.jpg

You have a sharp rise in the centre, the published
curve has a small dip though it looks like noise
to me, there are actually three such small dips.

A little smoothing will give you the classic textbook
flat bottom you get when the smaller star is totally
eclipsed.

This probably isn't a factor, but...

Poisson, Fresnel, or Arago's Bright Spot

In 1818, Augustin Fresnel submitted a paper on the theory of
diffraction for a competition sponsored by the French Academy.
His theory represented light as a wave, as opposed to a
bombardment of hard little particles, which was the subject
of a debate that lasted since Newton's day.

....and is still current ...

Siméon Poisson,
a member of the judging committee for the competition, was
very critical of the wave theory of light. Using Fresnel's
theory, Poisson deduced the seemingly absurd prediction that
a bright spot should appear behind a circular obstruction,
a prediction he felt was the last nail in the coffin for
Fresnel's theory. However, Dominique Arago, another member
of the judging committee, almost immediately verified the
spot experimentally. Fresnel won the competition.

The bright spot had been seen by Joseph-Nicolas Delisle a
hundred years earlier, but the connection to diffraction had
not been made.

This is related more to gravitational lensing than star
brigtness variation

Gravitational lensing and diffraction are two completely
different things, Henry, or whatever your name is. Arago's
Bright Spot is a diffraction effect. It has nothing to do
with gravity. Gravity has nothing to do with it. You should
take an introductory course in physics and learn something
about the ideas you are trying to correct.

Funny boy...

although I consider it may explain some of the very large
periodic magnitude variations seen in a small group of stars.

You don't even understand what it is or why it occurs.

Why did you raise the subject here then?
Don't you know what we're discussing?
Too hard is it?
You will need SOME knowledge of physics if you want to understand it.

....says the guy who forged his diplomas...



-- Jeff, in Minneapolis

www.users.bigpond.com/hewn/index.htm

Einstein's Relativity - the greatest HOAX since jesus christ's virgin mother.