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Archimedes
what date was it invented
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.
maybe the pulley but not the lever he invented the pulley but not the lever
2011 was the date of invention
Archimedes
A double pulley system is simple. Instead of one wheel like the single pulley system has, the double pulley system has two wheels and carries more heavier loads than the single pulley system can hold.
A double pulley system is simple. Instead of one wheel like the single pulley system has, the double pulley system has two wheels and carries more heavier loads than the single pulley system can hold.
The block and tackle (or pulley system) was brought to us by Archimedes (287BC - 212BC) in Greece, but neither Archimedes, nor any who wrote about him and his extraordinary work dated the invention.stupid answer
When you pull up the flag you pull it up by the rope. The rope has a pulley on it. So the actual poll is not a pulley but it has a pulley system on it
obama