Do spheres have poles? Couldn’t any point on a sphere be a pole and the point directly opposite to it be the other pole? If they don’t have intrinsic poles, are Earth’s poles human-defined?

Question

Do spheres have poles? Couldn’t any point on a sphere be a pole and the point directly opposite to it be the other pole? If they don’t have intrinsic poles, are Earth’s poles human-defined?

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Answer 1

Yeah any point *could* be the pole but they are defined by the rotation; it’s the two points where the axis meets the surface of the sphere, or the points that, if you were stood there, you wouldn’t move and you just spin in place – If you were to spin the sphere differently then the poles (these special places where you don’t move and just spin) will be in a different place.