Cannons were used in the past as artillery. It uses gunpowder to launch projectiles and the amount of gunpowder varies according to how much power is required. The angle of the cannon to the surface of the ground also varies because it is measured to the desired angle for firing a certain distance or height. Cannons are similar to guns but obviously at a larger scale in terms of size.
So how does a cannon work?
Cannons are composed of a large barrel with one open end. It works through the pressure at the closed end produced by the gunpowder or explosive. This force of pressure pushes out the projectile out of the open end.
As we already know, the pressure does not necessarily have to come from gunpowder, it can also function through the pressure of air, which is used for tennis balls. Yes, that's right. We use cannons in our daily lives as well, not just in the past for wars.
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