Center of Gravity
Gravity, Center of, in physics, point within an object where gravitational forces appear to act, and where the mass can be considered concentrated. This point is the same as the object's center of mass. The movement of an object is determined by where force is exerted in relation to the center of gravity.
See also: Physics.
Additional topics
21st Century Webster's Family Encyclopedia21st Century Webster's Family Encyclopedia - Grand Rapids to Hadron