Isaac Newton

Isaac Newton was an English physicist and mathematician whose work laid much of the foundation of classical mechanics, calculus, and modern optics.

Isaac Newton was an English physicist and mathematician whose work laid much of the foundation of classical mechanics, calculus, and modern optics. He is best known for the three laws of motion and universal gravitation, set out in his 1687 work *Philosophiae Naturalis Principia Mathematica*.

What it is

Isaac Newton (1642–1727) was born in Woolsthorpe, Lincolnshire, and studied at Trinity College, Cambridge. His early education was shaped by the scientific and mathematical ideas of 17th-century Europe. He later served as Lucasian Professor of Mathematics and became president of the Royal Society.

Why it matters

Newton formulated the three laws of motion and the law of universal gravitation, which became basic principles of classical physics. He also made major contributions to calculus and the study of light and colour. His work transformed natural philosophy into modern science and remains foundational in Canadian school curricula and engineering.

Key details

Newton's *Principia* (1687) presented mechanics and gravitation in a unified framework and is considered one of the most important scientific works. He was knighted by Queen Anne in 1705 and died in London in 1727. He is widely regarded as one of the most influential scientists in history.