Isaac Newton - Wikipedia

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History of calculus - Wikipedia

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Isaac newton, Wiki

Isaac Newton: Who He Was, Why Apples Are Falling

Newton's First Law of Motion One of Sir Isaac Newton's greatest accomplishments was the development of the laws of motion. Wikipedia. - ppt download

Isaac Newton

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Isaac Newton By Alex. Personal Profile  Born: 1642  Died: 1727  Birth Place: Woolsthorpe, Lincolnshire, England. - ppt download