How Guns Work :: essays research papers

How Guns WorkA gun is a arm that uses the force of an explosive propellant to project amissile.Guns or firearms argon classified by the diameter of the barrel opening. This isknown as the tidal bore of the gun. Anything with a calibre up to and including .60 calibre(0.6 inches) is known as a firearm.The precise origin of the gun is unknown, although they were in use by the primordial14th century and were common place in Europe by mid-century. These early gunswere nothing much than large calibre cylinders of wrought exhort or cast bronze,closed at one end and ludicrous by placing gun pulveriseize and projectile in the outfit,or open end. at once firearms are a little more sophisticated.However, the physics coffin nail alone guns remain the same. Weapons such as cannons,shotguns and rifles, work on the basic desire of conservation of momentum and thechange in energy from potential to energising.When the take off is pulled the hammer hits the firing pin. The firing pin the nhits the primer which causes the powder to burn hence producing lots of gases.This causes the volume behind the hummer to postulate with extremely high pressuregas. The gas ridees on every step forward it encounters, including the bullet infront of it and the base of the gun barrel behind it. The increase in pressurecaused by the gases causes the bullet to be laboured into the barrel hence causingthe bullet to come out the muzzle at very high speeds. Once the bullet is fired,it remains in motion from its momentum. The momentum will carry the bulletuntil it strikes an object or gravity pulls the bullet towards the earth.Firearms change potential chemical energy into kinetic energy in the actualfiring of the gun. Many people do not realise that the force imparted byaccelerating the bullet is not the solo force acting on the gun, or the shooter.Grains of burned gun powder are sent out the muzzle at high velocity. When the actuate is pulled, the hammer strikes a small rout out a t the end of the shell,the ammunition. This charge ignites black gun powder packed behind the lead bollock bearings. When the black gun powder burns, it produces gas that rapidlyexpands with the burning of more black gun powder. High pressure gases exertforces on the hind end of the bullet and on the gun. The only way for the gas toescape is to push the bullet out of its way through the end of the barrel. Thisis how a bullet is fired from a gun.