Editing Taylor–Proudman theorem (section)

In [[fluid mechanics]], the '''Taylor–Proudman theorem''' (after [[G. I. Taylor|Geoffrey Ingram Taylor]] and [[Joseph Proudman]]) states that when a solid body{{clarify|reason=The derivation doesn't mention a solid body anywhere, while this statement seems to imply that a solid body is necessary for this theorem to apply.|date=August 2020}} is moved slowly within a fluid that is steadily rotated with a high [[angular velocity]] <math>\Omega</math>,  the fluid [[velocity]] will be uniform along any line parallel to the axis of rotation. <math>\Omega</math> must be large compared to the movement of the solid body in order to make the [[Coriolis force]] large compared to the acceleration terms.