The Greek Dionysius the Elder of Syracuse, who was looking to develop a new type of weapon, invented the catapult about 400 BCE. Thereafter, it became a key weapon in warfare and remained so up ...

A modern catapult system used on an aircraft carrier ... After World War II, the British invented steam catapults and eventually perfected them. These systems used steam from the ship's boilers ...

The invention and use of paper brought about a ... was already used in simple hand-grenades which were thrown by a catapult. In 1126, Li Gang, a local official, recorded how he ordered the ...

The Greek Dionysius the Elder of Syracuse, who was looking to develop a new type of weapon, invented the catapult about 400 BCE. Thereafter, it became a key weapon in warfare and remained so up ...