Re: [Phys-L] field of an ellipsoidal distribution

["A. John Mallinckrodt" <ajm@cpp.edu>]

Bob Sciamanda wrote:

> Given a perfectly spherical and homogeneous earth, the horizontal component of the centrifugal force would move earth stuff toward the equator, reshaping the earth's profile so that the normal force of rigidity can now, by itself, completely cancel both the gravitational and centrifugal forces.

... which is a just a somewhat archaic way of saying that the normal force will cancel the gravitational force experienced and measured by Earth-riders in their own frame.