This blog provides background for and explanation of current topics in science.

Friday, April 23, 2010

A Brief History of Gravitational Theory

Sir Isaac Newton developed the first theory of gravitation. It was universal: it explained the motion of objects near the earth and the motion of the planets and moons. Using his theory, one could predict the trajectory of a cannon ball or the positions of the moon or any other celestial body. One only needed to know the initial conditions of the objects ... [Read more]

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