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An air vortex cannon is a toy that releases doughnut-shaped air vortices — similar to smoke rings but larger, stronger and invisible. The vortices can ruffle hair, disturb papers or blow out candles after travelling several metres. An air vortex cannon can be made easily at home, [1] [2] from just a cardboard box. [3]
In 2012, the U.S.-based group Defense Distributed disclosed plans to design a working plastic gun that could be downloaded and reproduced by anybody with a 3D printer. [ 38 ] [ 39 ] The Liberator is a physible , 3D-printable single shot handgun , the first such printable firearm design made widely available online.
They include the Jahannam cannon, Jahim cannon, thunder cannon, mortar cannon and compressed air cannon. Chainlock (improvised flail) Garrote; Stink bomb; Smoke bomb; Trench raiding club, a type of improvised wooden club with hammered hobnails around its circumference used for trench raiding during World War I. Blackjack/Sap; Improvised ...
A pneumatic potato cannon A large pneumatic design: The projectile is loaded in the muzzle (not pictured), which is then attached to the cannon (at 2). The air reservoir (3) is filled to 120 psi (0.83 MPa) using the Schrader valve (4). Upon opening the solenoid valve (1), the air from the reservoir is transferred to the projectile, which is ...
A vacuum bazooka is a pipe-based cannon which uses a vacuum pump (often a vacuum cleaner) to reduce pressure in front of the projectile and therefore propel a projectile as a result of the air pressure acting on its reverse.
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M61 Vulcan, a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled, electrically fired Gatling-style rotary cannon; M134 Minigun, a six-barrel rotary machine gun with a high rate of fire; Potato cannon, a pipe-based cannon that uses air pressure, or combustion of a flammable gas to fire projectiles, usually potatoes
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