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:
“There is nothing more natural than to consider everything as starting from oneself, chosen as the center of the world; one finds oneself thus capable of condemning the world without even wanting to hear its deceitful chatter.”
—Guy Debord (b. 1931)
“Actually being married seemed so crowded with unspoken rules and odd secrets and unfathomable responsibilities that it had no more occurred to her to imagine being married herself than it had to imagine driving a motorcycle or having a job. She had, however, thought about being a bride, which had more to do with being the center of attention and looking inexplicably, temporarily beautiful than it did with sharing a double bed with someone with hairy legs and a drawer full of boxer shorts.”
—Anna Quindlen (b. 1952)
“the melodious but vast mass of today’s
Writing ...”
—John Ashbery (b. 1927)