The pimple detector: Finally, science has invented a portable mean girl to tell you there's a zit on your face. Thanks, Chris Patil!
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.
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