Center of Mass
One way to define the center of gravity of a body is as the unique point in the body, if it exists, that satisfies the following requirement: There is no torque about the point for any positioning of the body in the field of force in which it is placed. This center of gravity exists only when the force is uniform, in which case it coincides with the center of mass. This approach dates back to Archimedes.
Read more about this topic: Centers Of Gravity In Non-uniform Fields
Famous quotes containing the words center of, center and/or mass:
“This is a strange little complacent country, in many ways a U.S.A. in miniature but of course nearer the center of disturbance!”
—Eleanor Roosevelt (1884–1962)
“Louise Bryant: I’m sorry if you don’t believe in mutual independence and free love and respect.
Eugene O’Neill: Don’t give me a lot of parlor socialism that you learned in the village. If you were mine, I wouldn’t share you with anybody or anything. It would be just you and me. You’d be at the center of it all. You know it would feel a lot more like love than being left alone with your work.”
—Warren Beatty (b. 1937)
“In the mass of mankind, I fear, there is too great a majority of fools and knaves; who, singly from their number, must to a certain degree be respected, though they are by no means respectable.”
—Philip Dormer Stanhope, 4th Earl Chesterfield (1694–1773)