Contact fuze

Okay kiddo, a contact fuze is a small machine that helps make sure a bomb or missile goes off at the right time.

You see, when a bomb or missile is launched, it has a timer or other device that decides when it should blow up. The problem is, things can change after it's been launched. Maybe the target moves, or maybe the bomb or missile hits something else first.

That's where the contact fuze comes in. It's a little machine that's attached to the bomb or missile and it senses when the bomb or missile hits its target. When the contact fuze senses the impact, it tells the bomb or missile to explode right then and there, making sure it doesn't miss its mark.

Think of it like a game where you try to hit a target with a ball. If you throw the ball and it hits the target, the target flashes and makes a noise to let you know you hit it. The contact fuze is like the flashing target - it tells the bomb or missile "you hit your target, time to explode!"