Relativity and Cosmology

   

Could the Measurements Trying to Detect Absolute Motion of Earth Allow to Test Sub-Manifold Gravity?

Authors: Matti Pitkänen

The history of the modern measurements of absolute motion has a long - more than century beginning from Michelson-Morley 1887. The earliest measurements assumed aether hypothesis. Cahill identifies the velocity as a velocity with respect to some preferred rest frame and uses relativistic kinematics although he misleadingly uses the terms absolute velocity and aether. The preferred frame could galaxy, or the system defining rest system in cosmology. It would be easy to dismiss this kind of experiments as attempts to return to the days before Einstein but this is not the case. It might be possible to gain unexpected information by this kind of measurements. Already the analysis of CMB spectrum demonstrated that Earth is not at rest in the Robertson-Walker coordinate system used to analysis CMB data and similar motion with respect to galaxy is quite possible and might serve as a rich source of information also in GRT based theory. In TGD framework the situation is especially interesting since sub-manifold gravity implies that maximal signal velocity depends on the space-time sheet and this effect might show itself in Mickelson-Morley type experiments. Also the motion of space-time sheets with respect to each other might be detectable.

Comments: 11 Pages.

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Submission history

[v1] 2012-01-31 00:01:40

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