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The onager (UK: / ˈ ɒ n ə dʒ ə /, / ˈ ɒ n ə ɡ ə /; US: / ˈ ɑː n ə dʒ ə r /) [1] was a Roman torsion-powered siege engine. It is commonly depicted as a catapult with a bowl, bucket, or sling at the end of its throwing arm. The onager was first mentioned in 353 AD by Ammianus Marcellinus, who described onagers as the same as a ...
Onager: 353 BC Rome: The Onager was a Roman torsion powered siege engine. It is commonly depicted as a catapult with a bowl, bucket, or sling at the end of its throwing arm. Trebuchet: 4th Century BC China: Similar to the catapult, but uses a swinging arm to launch projectiles. It is usually considered to be stronger than the catapult. [4 ...
The Roman onager, a catapult powered by rope torsion, was sometimes referred to as a stone-thrower. Archimedes reportedly designed a steam-powered gun to shoot spherical projectiles using the same principle of gas pressure as a gunpowder cannon. Leonardo da Vinci drew a design for a steam gun that he named "Architronito", citing Archimedes. [2]
Sketch of an Onager, from Antique technology by Diels. The onager was a post-classical Roman siege engine, which derived its name from the kicking action of the machine, similar to that of an onager (wild ass). It is a type of catapult that uses torsional pressure, generally from twisted rope, to store energy for the shot.
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.
The earliest documented occurrence of ancient siege-artillery pieces in China was the levered principled traction catapult and an 8 ft (2.4 m) high siege crossbow from the Mozi (Mo Jing), a Mohist text written at about the 4th – 3rd century BC by followers of Mozi who founded the Mohist school of thought during the late Spring and Autumn ...
This Halloween 2024, use these printable pumpkin stencils and free, easy carving patterns for the scariest, silliest, most unique, and cutest jack-o’-lanterns.
Re-enactor with Pompeii-type gladius The Mainz Gladius on display at the British Museum, London. Gladius is the general Latin word for 'sword'. In the Roman Republic, the term gladius Hispaniensis (Spanish sword) referred (and still refers) specifically to the short sword, 60 cm (24 inches) long, used by Roman legionaries from the 3rd century BC.