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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]
An air blaster or air cannon is a de-clogging device with two main components: a pressure vessel (storing air pressure) and a triggering mechanism (high speed release of compressed air). They are permanently installed on silos , bins and hoppers for powdery materials, and are used to prevent caking and to allow maximum storage capacity.
Under U.S. federal law, the creation of a firearm for non-commercial purposes (i.e., personal use) has, almost without exception, been unlicensed and legal.Since the passage of the Gun Control Act of 1968, however, anyone intending to manufacture firearms for sale or distribution is required to obtain a Federal Firearms License, and each firearm made is required to bear a unique serial number.
An anti-aircraft vehicle, also known as a self-propelled anti-aircraft gun (SPAAG) or self-propelled air defense system (SPAD), is a mobile vehicle with a dedicated anti-aircraft capability. Specific weapon systems used include machine guns , autocannons , larger guns, or surface-to-air missiles , and some mount both guns and longer-ranged ...
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.
Air cannon may refer to: Air blaster, a de-clogging device with a pressure vessel and triggering mechanism; Air cannon (mechanics), a device used for marine reflection and refraction surveys; Air vortex cannon, a toy gun that fires air vortex rings; Vortex ring gun, a non-lethal weapon that fires gas vortex rings; Air Cannon (Mario), a plot ...
By 1443, Iranians were also making some of their own cannon, as Mir Khawand wrote of a 1200 kg metal piece being made by an Iranian rikhtegar which was most likely a cannon. [74] Due to the difficulties of transporting cannon in mountainous terrain, their use was less common compared to their use in Europe. [73]
It was also used to protect U.S. Air Force warplane airfields and U.S. Army helicopter airfields. The heart of the M167 is the M168 Cannon, a variant of the M61 Vulcan 20×102 mm rapid-fire rotary cannon. It was also effective against lightly armored ground targets. The M167 gun has now been withdrawn from service by U.S. military units, but is ...