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.
Maggie Koerth-Baker is the science editor at BoingBoing.net. She writes a monthly column for The New York Times Magazine and is the author of Before the Lights Go Out, a book about electricity, infrastructure, and the future of energy. You can find Maggie on Twitter and Facebook.