Popular Science USA - April/May 2015
English | 84 pages | True PDF | 27.5 MB
English | 84 pages | True PDF | 27.5 MB
Jimmy Carter on how to rid the world of guinea worm,An umbrella stand that predicts the weather,A hobbit sword for detecting unprotected Wi-Fi networks,Ask Us Anything: Why don’t electric eels electrocute themselves? and more…