Relativity and Cosmology

    

A Classical Wave Model of Quasi-Static General Relativity

Authors: Robert A. Close

General relativity can be difficult for undergraduate students to comprehend, partly because the math is difficult and partly because it is not based on a simple physical model. However, in many situations general relativity can be interpreted as ordinary wave refraction in a non-uniform medium, with the refractive index (or wave speed) derived from only two independent components of a spatially isotropic diagonal spacetime metric. This work utilizes an elastic solid model of the vacuum to explain how the presence of wave energy would modify a medium to produce the metric variations of general relativity in a quasi-static environment. This analysis provides model-based explanations for many predictions of general relativity, including curved space, black holes, gravitational waves, and the different accelerations of light and massive objects.

Comments: 16 Pages.

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[v1] 2024-07-06 17:57:01

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