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May 26, 2012
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Dictionary


cen'ter of grav'ity




1. Mech.the point through which the resultant of gravitational forces on a body passes and from which the resultant force of attraction of the body on other bodies emanates: coincident with the center of mass in a uniform gravitational field.
2. a person, thing, or idea that is the vital or pivotal focus of interest or activity within a larger entity.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

center of curvaturecenter of mass
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