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Old 02-09-2010, 03:50 AM
Mike Dubbeld Mike Dubbeld is offline
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Thats right to a certain extent Bobbo but in Surfing Through Hyperspace they give the example of someone walking along and then suddenly for no seeable reason they can walk no further. It is because spacetime is crumpled up so much you would have to walk vertically to proceed. But all the person can detect is some sort of unseen barrier.

In the early part of the 20'th century Einstein predicted from his General Relativity that spacetime was slightly curved due to the gravity of the sun. But how could you prove this? It took a total eclipse of the sun as seen off the coast of western Africa by Sir Aurtur Eddington. The positions of the stars were well known by astronomers in the sky. But if the sun was causing the light of stars to bend as it went by the sun, how could you possibly see the light of the stars when the sun was so bright. Total eclipse. When they looked at these stars near the edge of the sun they were all shifted slightly. Either all the stars moved in cohesion with each other or else the gravity of the sun was bending their light. Science went with the latter and Einstein became an overnight celebrity overthrowing Newtonian gravity.

It should be noted that although Einstein's GR is correct in all testing thus far (inertial spacetime dragging is yet untested/Gravity Probe B experiment failed as I recall), spacetime is curved around massive objects in space, that in no way negates the idea of a graviton force carrier. The question has to be asked: "If spacetime is warped around massive gravitational objects, what then is the cause of it being warped?" Answer: graviton as force carrier for the force experienced by the curvature of spacetime. It can all be quite confusing at first but if you read it closely enough it tends to make a lot of sense. We might ask also: If gravity warps spacetime and is a force that is only 1/100000000000000000000000000000000000000 as strong as the electric force, then does the electric force warp spacetime as well? Unfortunately in nature there are no large accumulations of positive or negative charges like there are large accumulations of matter of the fermion/Pauli exclusion principle type with half integer spin.
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