Evangelista Torricelli, Italian physicist and mathematician (died 1647)

Evangelista Torricelli

Italian physicist and mathematician (1608–1647)

Evangelista Torricelli was an Italian physicist and mathematician, and a student of Benedetto Castelli. He is best known for his invention of the barometer, but is also known for his advances in optics and work on the method of indivisibles. The torr is named after him.