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Content: GR says that gravity is the curvature of
spacetime. What is the Difference between relativity and quantum mechanics? Relativity has two parts: General relativity and special
relativity, general relativity describes gravity as a geometric
property of spacetime and special relativity is the physical theory
of measurement in inertial frames of reference. Now quantum
mechanics, in it's wave formulation, deals with describing things
on the atomic scale as a wavefunction. What is the difference between the universal law of gravity and the law of gravity? Nothing. They're two ways of referring to the same law of
nature. What is the relation between Relativity Gravity and the Planets? Relativity is a theory of gravity, and gravity governs the
motion of planets.