If you liked the Proteus ‘smart pill’, you’ll love this capsule endoscope with a difference.  Developed by a team at Osaka Medical College and Ryukoku University, the capsule–dubbed the ‘mermaid’–is propelled by a tail fin which is controlled electromagnetically by an outside operator manipulating a joystick, which enables a precise control of positioning and scanning all the way down…or up. Just say ahh…and gulp.  Cancer-Fighting Device Is Tough to Swallow (Design News)