(c.287–212 BC), Greek mathematician and inventor, of Syracuse. He is famous for his discovery of Archimedes' principle (legend has it that he made this discovery while taking a bath, and ran through the streets shouting ‘Eureka!’); among his mathematical discoveries are the ratio of the radius of a circle to its circumference, and formulas for the surface area and volume of a sphere and of a cylinder.
(c.287–212 BC), Greek mathematician and inventor from Syracuse. He is noted for his discovery of Archimedes' principle (legend has it that he made this discovery while taking a bath and ran through the streets shouting “Eureka!”). Among his mathematical discoveries are the ratio of the radius of a circle to its circumference and formulas for the surface area and volume of a sphere and of a cylinder.