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Basic diagram of an onager, a type of catapult. A catapult is a ballistic device used to launch a projectile a great distance without the aid of gunpowder or other propellants – particularly various types of ancient and medieval siege engines. [1] A catapult uses the sudden release of stored potential energy to propel its payload.
This is an accepted version of this page This is the latest accepted revision, reviewed on 6 January 2025. Siege engine using long arm to throw projectiles For other uses, see Trebuchet (disambiguation). Replica counterweight trebuchets at Château de Castelnaud Counterweight trebuchet used in a siege from the Jami' al-tawarikh, c. 1306-18 A trebuchet [nb 1] is a type of catapult that uses a ...
Navies introduced steam catapults, capable of launching the heavier jet fighters, in the mid-1950s. Powder-driven catapults were also contemplated, and would have been powerful enough, but would also have introduced far greater stresses on the airframes and might have been unsuitable for long use. [4]
The modern steam-powered catapult, powered by steam from the ship's boilers, was invented by Commander C.C. Mitchell of the Royal Naval Reserve. [27] It was widely adopted following trials on HMS Perseus between 1950 and 1952 which showed it to be more powerful and reliable than the hydraulic catapults which had been introduced in the 1940s.
A slingshot or catapult is a small hand-powered projectile weapon. The classic form consists of a Y-shaped frame, with two tubes or strips made from either a natural rubber or synthetic elastic material. These are attached to the upper two ends. The other ends of the strips lead back to a pouch that holds the projectile. One hand holds the ...
Plane crashes were common in the early days of aviation as daring pilots pushed the limits of flight. And many, like that of the White Bird, didn’t have a clear cause.
Look around you. The future has arrived. Nearly 100 years ago, a group of deep thinkers dared to imagine what life would be like in 2025. Some of their prophecies were completely off target, while ...
A catapulta was a Roman machine for throwing arrows and javelins, [1] [2] 12 feet (3.7 m) or 15 feet (4.6 m) long, at the enemy. The name comes from the Greek katapeltes (καταπέλτης), because it could pierce or 'go through' (kata) shields (peltas).