He made it because it took half the weight of the load off
Used it for counterweights....
Archimedes (not a group, a guy) invented pulleys as well as other simple machines.
gorge w bush
Archimedes discovered the concept of gravity with his levers and pulleys, his theory of displacement and invented the screw.
Archimedes invented Archimedes' screw.
Made from a wheel and rope. Used to moved loadsOne interesting fact about a pulley is that Archimedes invented it!a pulley is made from a wheel and a rope
The Archimedes screw was invented in 250 B.C.
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