It is not clear who invented the lever, pulley, screw, wedge, inclined plane, or the wheel and axle. Humans and animals used natural levers, inclined planes, and wedges from the beginning. The arm is a natural lever. The inclined plane is found in sloped areas. The tooth is a natural wedge. A man named Archimedes gave a better understanding of the lever, pulley, screw, and inclined plane. Early humans created the wedge along with the wheel and axle.
A Greek mathematician named Archimedes (287-212 BC) invented the water screw. It is still used today. A water screw is used to raise water. When the screw turns inside its encasing, water fills the air spaces and it moves up. In 400 BC, screw thread was invented by Archytas of Tarentum. He lived from 428 BC until 350 BC. In 700 BC an Assyrian king named Sennacherib is said to have made a type of screw.
It is believed that Archimedes, the Greek mathematician, developed the first block and tackle pulley system. This was recorded by a man named Plutarch.
A Greek mathematician named Archimedes (287-212 BC) invented the water screw. It is still used today. A water screw is used to raise water. When the screw turns inside its encasing, water fills the air spaces and it moves up. In 400 BC, screw thread was invented by Archytas of Tarentum. He lived from 428 BC until 350 BC. In 700 BC an Assyrian king named Sennacherib is said to have made a type of screw.
It is believed that Archimedes, the Greek mathematician, developed the first block and tackle pulley system. This was recorded by a man named Plutarch.