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newton.dat
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1994-10-26
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ISAAC NEWTON: 1687 A.D.
Kepler's laws of planetary motion and Copernicus's
heliocentric (sun centered) model of the solar system
were verified by Isaac Newton when he wrote his laws
of universal gravitation in the "Principia" (1687).
Newtonian physics explained that the earth and the
other planets revolve around the sun because of the
sun's gravity.
Newton's laws also served to explain the physical
force (or phenomena) behind Kepler's laws of
planetary motion.