From Simple English Wikipedia, the free encyclopedia
A cannon that can be moved around on wheels. The back of the cannon is on the right
Acannon is a type ofartillery, or largegun. They are made with a large tube called "barrel", and shootprojectiles. Cannons were first made inChina, and were used with another Chinese invention,gunpowder. The gunpowder was put at the back of the tube, and the projectile, usually a cannonball, was placed in front. The gunpowder was set onfire, and would explode. This pushed the cannonball out the front of the tube towards the enemy.Howitzers andmortars are similar to cannons but they have shorter barrels and shoot the projectiles (that is: balls or shells) higher.
A field gun is a cannon if its barrel lenght is more than 35 times its caliber (the inner diameter, "bore", of its shell pathway). If the barrel length is 10 to 35 times the caliber, it is ahowitzer. Less than 10 times are calledmortars.
Modern guns that can shoot many big projectiles quickly and automatically are called autocannons. Modern cannons are usually used onwarships andtanks.
