11 Things We Didn’t Know Last Week

News, discoveries and fun … 1. Two Swedish women have invented an inflatable bike helmet. (Learn more at Sports Illustrated) 2. Military veteran dogs find second careers as explosives detectives at the U.S. Capitol. (Learn more at Washington Post) 3. A new kind of tattoo on your throat could be used as a microphone – and double as a lie detector. (Learn more at Discovery) 4. The classic rubber duckie and the game of chess are in the National Toy Hall of …