/u/moltenwater77's posts in /r/askscience
Does the core of the earth rotate at the same rate as the surface? If it's slower, does that friction contribute to the present in the core and outer core?
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The example of less massive objects orbiting more massive is always portrayed as the more massive object warping space time on a horizontal plane. Wouldn't that plane also be vertical? Furthermore, wouldn't there be infinite planes surrounding an object from all directions?
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