Isaac Newton (1642–1727)

Newton's birth coincided with Galileo's death - a symbolic transition between scientific eras. During plague years, he retreated to his family farm and developed foundational insights that would reshape physics, mathematics, and astronomy.

His 1687 Principia Mathematica unified celestial and terrestrial mechanics under a single mathematical framework. The three laws of motion and universal gravitation explained phenomena from falling objects to planetary orbits with unprecedented precision. His optical experiments revealed light's composite nature, his reflecting telescope improved astronomical observation, and his calculus development - disputed with Leibniz for decades - gave science essential mathematical tools. Difficult and obsessive, he nonetheless produced work of such revolutionary scope that many consider him science's greatest mind.