Portrait in oils of Sir Isaac Newton (1642-1727), English physicist and mathematician. Newton was educated at Grantham and at Trinity College, Cambridge. His most inspired science was conducted in 1665-6, including his invention of the calculus (both differential and integral), the binomial theorem and his law of universal gravitation. He was elected a Fellow of Trinity College in 1667, becoming Lucasian Proessor of Mathematics 3 years later. Following a visit by Halley in 1684, Newton wrote probably the most important scientific book of all time, insPhilosphiae Naturalis Principia Mathematicains. In this he described his three laws of motion by the calculus and by geometry.