<BLOCKQUOTE id=quote><font size=2 face="Verdana, Arial, Helvetica" id=quote>quote:<hr height=1 noshade id=quote>
Meta Research's rebuttal to the Kopeikin press release claiming that the speed of gravity is the speed of light may be viewed at [url]
metaresearch.org/media%20and%20links/press.asp
[/url]. -|Tom|-
<hr height=1 noshade id=quote></BLOCKQUOTE id=quote></font id=quote><font face="Verdana, Arial, Helvetica" size=2 id=quote>What I was fearing is now reality. Every GRian will give reference of Kopeikin experiment in support of relativity. If relativity had helped to understand our universe in better way, then I would not have any objection. But that is certainly not the case.
Frankly, whatever you do, Kopeikin experiment is now part of establishment. And Kopeikin claim can be falsified by some another experiment only. Not by logic or equations.
I hope some day some one will come up with better experimental idea. But for the time being how about the following idea?
Consider a horizontal spiral helix at height h from surface of planet. This helix is made of metal of mass m+m'. Total length of this helix is L and its center of mass is at the center of helix.
Now consider piece of metal of mass m' in the end of this spiral helix. At t = 0, this metal piece breaks off from rest of spiral helix. This information takes time interval L/c = t to propagate to center of mass of spiral helix.
If Dr. Kopeikin is correct, then at t = 0, if we measure weight of broken off metal piece on one weigh machine, it will be W' = m'g and as this information regarding change in mass reaches to center of mass after time interval t, the other weigh machine under center of mass will continue to show weight W = (m+m')g during this time interval t.
If the metal piece of mass m' is separated from helix, what was it, on which gravity of planet was acting during this time interval t ? How can two different weigh machines just separated by space (having absolutely no contact between them) measure weight of same body?
One body can not exist at same instantaneous moment at two points in space. When the body changes its position in space, this information must be communicated to center of gravity of planet instantaneously. If there is propagation delay, then this delay can be used to "create" excess energy and thus law of conservation of energy is violated.
It might seem crazy but we can use atomic clocks and sensitive electronic weigh machines to perform actual experiment. If the metal peice of mass m' is separated and still the weigh machine under centre of mass shows the weight of this metal piece during time interval t = L /c, then OK, I will agree with Kopeikin result.
I had sent email to Dr. Kopeikin on 12-13 sept. 2002 in which same idea in different situation was given. Dr. Kopeikin replied to me as follows:
__________________________________________________________________
Dear Abhi,
your paper is a kind of a descriptive experiment. In order to make predictions in physics we need to develop not only formal logic but solve equations. General Relativity predicts that gravity does not propagate instanteneously but with finite speed. This fact was indirectly confirmed in the binary pulsar experiment by Joe Taylor with collabolators. If you disagree with their conclusions you have to find (1) mathematical mistakes in math. solution of Einstein equations used in parametrization of the problem, and (2) find mistakes in the computer code used for processing data.
Best wishes,
Sergei
_________________________________________________________________
Now will somebody tell me, what equations I should use in my experiment?
Can somebody tell me how the information propagation in this helix and earth will take place through "Gravitational Waves"?
-Abhi.
