## Isaac Newton, “The Principia: Mathematical Principles of Natural Philosophy”, 1687.

Isaac Newton, “The Principia: Mathematical Principles of Natural Philosophy”, 1687 was a mathematical science book.  Gilles de Roberval, “Roberval Balance”, 1669 was the topic of an earlier blog post on the “weighing of mass”.  Isaac Newton takes the “weight of mass” into the universal “gravitation of mass” discovery in Isaac Newton, “The Principia: Mathematical Principles … Continue reading Isaac Newton, “The Principia: Mathematical Principles of Natural Philosophy”, 1687.