A cannon is simply a metallic tube which has a shut conclude and an open conclude. The shut conclude has a little fuse gap. To load the cannon, you pour in gunpowder — a mix of charcoal, sulfur and potassium nitrate — and then fall inside of a cannonball. https://dominickcezkd.onzeblog.com/35782210/5-simple-statements-about-machine-gun-adventure-explained