Presure through a fluid, 1687.
© Science Museum / Science & Society Picture Library
Proposition 41, Theorem 32, concerning motion propagated through fluids from Newton's 'Principia Mathematica' (1687). The proposition posits that: 'Presure is not propagated through a fluid along straight lines, unles the particles of the fluid lie in a straight line.' 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.