Flour is not as innocuous as it may seem. Like other carbohydrates, it’s really just a tiny chain of sugars at heart. And (as anyone who’s ever made s’mores knows) sugar can light up like a dried-out Christmas Tree that’s been exposed to an electrical spark…

In fact, flour dust is highly explosive. Today’s experiment takes advantage of the burnability of flour to create a cool fire-breathing trick.

Blow Huge Fireballs with Your Breath!
by WonderHowTo

Via Boing Boing