Mach's principle Archives - Page 6 of 6

Does MOND work? and the origin of inertia

MOND correctly predicts galaxy rotation curves, but fails in galaxy clusters and other evidence for dark matter. Does this mean that MOND is incorrect? The original author of MOND suggested that MOND should come from modified inertia, but a phenomenological explanation of MOND has never been found. There are many proposals of modifiying inertia based on Mach’s principle and the relativity of acceleration, but shouldn’t these approximate to MOND’s formulation?

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Einstein’s theoretical failures of General Relativity

Einstein developed General Relativity between 1907 and 1915 in the search for the introduction of acceleration in special relativity by the equivalence principle, and a relativistic explanation for gravity, among others. Leaving aside experimental incompatibilities of General Relativity with observations, there are theoretical and fundamental issues with the theory, such as gravitational potential energy and Mach’s principle.