Which of the following ancient Greeks developed an understanding of the use of lever and pulley

A) Democritus

B) Archimedes

C) pythagoras

D) Praxiteles

B) Archimedes

Explanation:

In 300 BC, Archimedes, a Greek philosopher, discovered the concept of simple machines. He mainly focused on the lever, pulley, and screw mechanisms, and was the first to develop the notion of mechanical advantage in levers.