How are fireworks manufactured and made to pop out like they do?

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How are fireworks manufactured and made to pop out like they do?

In: Engineering

Not a fireworks guy, but How It’s Made has a really good piece on how they’re made.

https://youtu.be/hatDxw8-GRM

Basically, it’s a series of explosive charges seperated by time delay fuses. An initial “lift” charge launches the firework into the air, after a given time, the burst charge, usually gunpowder surrounded by small metallic stars, all contained in a plastic shell, explodes. The type of metal dictates what color they burn. They’re made in a very anti static environment, by specialized technicians. Hope that’s a good start!