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You won’t believe how smart this dumb firecracker is!

Did you laugh too?

It’s actually designed as a joke.

Jokes have a setup and a punchline.

The setup introduces the situation, the punchline surprises you.

The patent shows the firecracker has two parts – front and back, with a barrier in between.

First, the front lights up, pushing burnt powder out of the hen’s mouth. That’s the setup.

Then, the back part ignites, making a lot of smoke, but flame retardant stops the fire from spreading

Otherwise, the fire could spread and burn the balloon

The smoke shoots out through a small hole, inflating the egg-shaped balloon..and That’s the punchline!

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