books.google.com - Isaac Newton's The Mathematical Principles of Natural Philosophy translated by Andrew Motte and published in two volumes in 1729 remains the first and only translation of Newton's Philosophia naturalis principia mathematica, which was first published in London in 1687. As the most famous work in the...http://books.google.com/books/about/The_Mathematical_Principles_of_Natural_P.html?id=Tm0FAAAAQAAJ&q=centre+of+force&utm_source=gb-gplus-shareThe Mathematical Principles of Natural Philosophy

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## The Mathematical Principles of Natural Philosophy, Volume 1By Sir Isaac Newton, John Machin |