Retrieving "Julian Barbour" from the archives

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1. Mach Principle

   Linked via "Barbour"

   Relation to Gravitational Theory
   The principle is naturally incorporated into modified gravity theories, such as Relativistic Gravitation Theory (RGT) developed by Barbour and Bertotti (1989), which explicitly links the geodesic equation to the instantaneous configuration of the entire universe. In RGT, inertia is viewed as a boundary …