Greek Pulleys

The Ancient Greeks invented a lot of things, take the crane for instance,
there were  lots of great inventors but "Archimedes" was one of the best.....

Did you know that we use a pulley nearly everyday?
Like the curtains for example.
The string is like the pulley and we use that to open and close it!
The greeks also had a good use of the crane, they used the pulley to build the Parthenon (a temple dedicated to the godess Athena).
The crane can be powered  by people but also animals such as donkeys and horses.A greek man named Archimedes first came up with the idea, he also made the claw, which was used to defend the city of Syracuse by sinking the ships of the coast. Archimedes once tried the impossible task of counting every sand grain in the universe.
Scientists assume that the pulley was first invented in 900 BC though there is no direct proof.

Greek
pulleyArchimedes

By Mia  Perkins Room 3