Wednesday, September 03, 2008

The speed of gravity

what is the speed of gravity? Find out here.“That one body may act upon another at a distance through a vacuum, without the mediation of any thing else, by and through which their action and force may be conveyed from one to the other, is to me so great an absurdity, that I believe no man who has in philosophical matters a competent faculty of thinking, can ever fall into it.” Isaac Newton.


Anonymous said...

This was most interesting. It is difficult to read but contained new information for me. The Quest for the speed of Gravity seems to be the salient point in the quest for a unified field theory if there will be one. We await the next giant of Physics for an answer. N1IPP

Bob Crowley said...

Complexity theory suggests that the answer may be simpler than we think, and staring us right in the face. Einstein's space curvature idea may be throwing us off something obvious - that the gravitational attraction, which looks exactly like acceleration, is indeed a property of accelerating, changing space as a function of (as defined by) the matter in it. If 3% of the mass is observable, then that may mean there are 33 and 1/3 alternative universes (dark matter).

Unlike EM propagation, which has a momentum to it,is energy, and is orthogonally electric/magnetic and any instantaneous point and time, gravity only has one component, and exists as potential energy, but is still orthogonal with one less axis. It may be an artifact of the big bang and we may be witnessing a simultaneous coalescent and expanding universe.

Anonymous said...

Or gravity acts instantaneously and GR is incorrect in its assumptions.