Prosecutors began interrogating the first accused witches in the infamous Salem Witch Trials this week in 1692. How does one go about proving the guilt of a witch? Basically, any way you feel like doing it. Or, at least, that's the impression I get from this mental_floss 10 list.
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.