Handwriting on page of Newton's 'Principia Mathematica', 1687.

Handwriting on page 104 of the first edition of Newton's 'Principia Mathematica' (1687). The discoveries of English physicist and mathematician Isaac Newton (1642-1727) were prolific and hugely influential on science and thought. His work included the three laws of motion, the theory of gravitation, the law of cooling, the binomial theorem and the calculus.