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Potato cannon. A potato cannon, also known as a potato gun or potato launcher, is a pipe-based cannon that uses air pressure (pneumatic), or combustion of a flammable gas (aerosol, propane, etc.), [1][2][3][4] to fire projectiles, usually potatoes. [5] A simple design consists of a pipe sealed on one end, with a reducer on the other end to ...
The low projectile speed requirement of a toy weapon greatly reduces the amount of air pressure needed; combined with the importance of safety in the toy industry, this has led to widespread adoption of pneumatic firing mechanisms in toy weapons, where a propellant reaction is not appropriate (although other technologies, such as rubber bands, can be used).
Spud gun. A typical factory-made toy die-cast spud gun. The cap attached to the muzzle converts it into a water pistol. A spud gun or potato gun is a small toy gun used to fire a fragment of potato. To operate, one punctures the surface of a potato with the gun's hollow tip and pries out a small pellet which fits in the muzzle.
The usual recoil system in modern quick-firing guns is the hydro-pneumatic recoil system. In this system, the barrel is mounted on rails on which it can recoil to the rear, and the recoil is taken up by a cylinder which is similar in operation to an automotive gas-charged shock absorber, and is commonly visible as a cylinder mounted parallel to ...
Explosive detection. An U.S. Customs and Border Protection officer with an explosive-detection dog. Explosive detection is a non-destructive inspection process to determine whether a container contains explosive material. Explosive detection is commonly used at airports, ports and for border control.
The development of the M18A1 mine dates back to work done during World War II. The Misnay–Schardin effect was independently discovered during that war by József Misnay, a Hungarian, and Hubert Schardin, a German. When a sheet of explosive detonates in contact with a heavy backing surface (for example, a metal plate), the resulting blast is ...
Pneumatic cannon. Pneumatic cannon may refer to: Dynamite gun, any of a class of artillery pieces that use compressed air to propel an explosive projectile. FN 303, a semi-automatic less-lethal riot gun. Holman Projector, a naval anti-aircraft weapon. M61 Vulcan, a hydraulically, electrically, or pneumatically driven, six-barrel, air-cooled ...
A metal detector is an instrument that detects the nearby presence of metal. Metal detectors are useful for finding metal objects on the surface, underground, and under water. A metal detector consists of a control box, an adjustable shaft, and a variable-shaped pickup coil. When the coil nears metal, the control box signals its presence with a ...