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1 year ago in Physics , Quantum Mechanics By Robert

Instant transmission of mechanical information in General Relativity?

Is instantaneous transmission of mechanical information possible in general relativity?

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By Tutank Answered 1 year ago

In general relativity, information cannot propagate faster than the speed of light. If a rope were stretched between Earth and the Sun, cutting it on Earth would not instantly affect the Sun end. The change would propagate at the speed of mechanical waves in the rope, which is much slower than light. This is because tension or force transmission depends on the rope’s elasticity and density. GR ensures causality is preserved; no instantaneous transmission of mechanical or gravitational information occurs, consistent with relativity principles.
 

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