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Special relativity (alternative formulations)
About: Special relativity (alternative formulations) is a research topic. Over the lifetime, 3102 publications have been published within this topic receiving 55015 citations.
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TL;DR: In this paper, the field equations of general relativity have been solved to obtain a solution for a static charged fluid sphere, which is free from singularity and satisfies the necessary physical conditions.
Abstract: In the present paper the field equations of general relativity have been solved to obtain a solution for a static charged fluid sphere. This solution is free from singularity and satisfies the necessary physical conditions.
16 citations
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TL;DR: In this article, the authors give a definition of rigid congruences in both General and Special Relativity, and try to make the definition plausible, and apply the definition to the Earth-Sun system in the post-Newtonian approximation.
Abstract: We give a definition of rigid congruences in both General and Special Relativity, and we try to make the definition plausible. To this end we recall Fermat's principle in General Relativity and we show that this principle allows us to reinterpret the “quotient metric” as the quadratic form which defines the optical length in a gravitational field. We apply the definition to the Earth-Sun system in the post-Newtonian approximation. Furthermore we compute the Fermat tensor and the corresponding relative variation of the speed of light in a Michelson-Morley like experiment performed on the Earth's surface. According to all measurements to date, this quantity is extremely small (10 -13 ).
16 citations