This Day in History Entry #125
July 5th, 2011 by Wordsman
Why did the apple fall from the tree?
Things at rest tend to stay there, you see
A force drew it that way
(As F=ma)
Apple pushed head; head pushed equally
Event: Publication by Isaac Newton of Philosophiæ Naturalis Principia Mathematica
Year: 1687
Learn more: http://en.wikipedia.org/wiki/Philosophi%C3%A6_Naturalis_Principia_Mathematica
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