What did Archimede discover?

Answer 1

Archimedes discovered and invented several things throughout his life:

• Archimedes' principle (one of several apsects involving buoyancy).
• The Archimedean screw (a fluid-moving device).
• The block-and-pulley (using mechanical advantage to move loads with less effort).
• Inventing the odometer (a device that measures distance travelled by a vehicle).
• The relation of a circle's area to its radius (given by a mathematical relationship and a basic tool of modern mathematics).

Answer 2

Archimedes discovered the Archimedes' principle in hydrostatics, pi and lots of other stuff