Mr. Dowling's Isaac Newton Page

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Isaac Newton and Gravity

Isaac Newton Scientists understood that the world was round, but in 1687, and English scientist named Isaac Newton explained why people do not fall off the earth. Newton realized that everything in the universe was attracted to everything else, and that the greater and closer the object, the greater its pull. We call this force gravity, which comes from a Latin word meaning heaviness. Everything and everybody has gravity-even you-but the earth has a mass of 5,972,000,000,000 pounds. The earth is very large, so people and objects are attracted to its gravitational pull. The earth orbits the sun because of the sun's gravitational pull on the earth.

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To cite this page:
Dowling, Mike, "Mr. Dowling's Isaac Newton Page," available from http://www.mrdowling.com/601-newton.html; Internet; updated Saturday, June 17, 2006 . ©2008, Mike Dowling. All rights reserved.