AST-1A Lecture Notes - Lecture 19: Gravitational Redshift, Gravitational Wave, Arthur Eddington
Document Summary
Einstein published the general theory of relativity in 1916. It is based on the principle of equivalence: gravitational force is indistinguishable from acceleration. For example, no experiment can determine whether you are in an elevator sitting on the surface of the earth or an elevator in deep space being accelerated. According to the general theory of relativity, a massive object warps or bends the spacetime around it. The gravity that we feel is the result of this bending. A central idea in general relativity is that space and time are related to. According to general relativity, satellites move in orbits around the earth because they one another and must be considered together, not separately. follow the curvature of spacetime caused by the mass of the earth. The more massive the object, the greater the curvature. As with all scientific theories, the general theory of relativity has been tested by comparing its predictions against experimental evidence.
