Philosophiæ Naturalis Principia Mathematica (Book) AKA Principia
Philosophiæ Naturalis Principia Mathematica
1687 AD
AKA Principia
Book by Isaac Newton that expounds Newton's laws of motion and his law of universal gravitation. The Principia is written in Latin and comprises three volumes.
This work forms the foundation of classical mechanics. Among other achievements, it explains Johannes Kepler's laws of planetary motion, which Kepler had first obtained empirically. In formulating his physical laws, Newton developed and used mathematical methods now included in the field of calculus, expressing them in the form of geometric propositions about "vanishingly small" shapes.
In a revised conclusion to the Principia, Newton emphasized the empirical nature of the work with the expression Hypotheses non fingo ("I frame/feign no hypotheses").
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