General Relativity

How Einstein Messed up Progress in Gravitation

Einstein’s work is considered nowadays the best description of gravity, and he reached his field equations incredibly quickly after special relativity, in about 10 years. But what if Einstein’s great achievement was too ahead of his time? What would the progress in gravity would have looked like if Einstein’s theory was developed later? We review the history of gravitational theories and missing ideas in General Relativity.

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Anisotropic inertial mass and Mach's principle

Why was Mach’s principle abandoned & the anisotropy of inertia debate

Research in Mach’s principle lost interest by the physics community after the results of Brans-Dicke theory. Another objection often raised against Mach’s principle is the claim that it implies some sort of anisotropy of inertia. We explore this idea based on Dicke’s and Treder’s claims. Does Mach’s principle necessarily imply the anisotropy of inertia?

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