Gun : Introduction: A gun is a long-range weapon that fires projectiles out of a shooting tube, or barrel. The projectiles are usually solid, but they can also be charged particles or pressurised liquid (such as in water guns or cannons, spray guns for painting or pressure washing, projected water disruptors, or technically flamethrowers) (e.g. plasma gun). Solid projectiles can either be tethered or free-flying (like bullets and artillery shells) (as with Taser guns, spearguns and harpoon guns). A cannon is another name for a large-caliber firearm. Gun Although the methods of projectile propulsion vary depending on designs, they are often pneumatically influenced by a high gas pressure enclosed within the barrel tube, produced either through the quick exothermic burning of propellants (as with firearms) or by mechanical compression (as with air guns). Once the propelling gas stops acting on the projectile after it exits the muzzle, the high-pressure gas is introduced behi...
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