the pulley was invented in the 1956
The simple pulley was invented in ancient times by an unknown person. The compound pulley was invented by Archimedes.
Archimedes
a coumpound pulley is when there is a fixe pulley and movable pulley working together
Archimedes
Archimedes
obama
The simple pulley was invented in ancient times by an unknown person. The compound pulley was invented by Archimedes.
Archimedes
It could be used to pull ships onto land and to get water from a well. Archimedes invented the compound pulley in ancient Greece.
Archimedes
Archimedes accurately estimated the value of pi. He was also the Greek inventor that created the compound pulley and first device used for extracting water from below the surface of the earth as well.
a coumpound pulley is when there is a fixe pulley and movable pulley working together
a coumpound pulley is when there is a fixe pulley and movable pulley working together
2014
1665
Fixed Pulley and Compound Pulley.
maybe the pulley but not the lever he invented the pulley but not the lever