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Physics, Astronomy & Cosmology / Re: Is a radial geodesic possible towards a rotating body?
« on: 28/05/2017 14:23:19 »I am thinking of a geodesic that is 'geostationary' for want of a better term.It's quite unclear to me what you mean by "geostationary." Please define that term for me.
So that it is always heading towards the same point on the central body.If a body is in free-fall towards a rotating body then (1) it will be moving on a geodesic in spacetime and (2) will not be moving directly towards the body since spacetime dragging will sweep it along the direction of rotation.
Therefore it has to rotate with the body. At some radial distance it has to rotate at the speed of light to keep up.Why?
FYI - You're confusing the term "rotating" with "revolving." A body which is orbit of a gravitational body is said to be "revolving" around that body. A body which is spinning is said to be rotating.
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