coondoggie writes to mention that Duke University researchers have created micro-robots and made them dance to their tune. With dimensions measured in microns, these tiny bots were made to waltz to the music of Strauss on the head of a pin just one millimeter across. "In another sequence, the devices pivot in a precise fashion whenever their boom-like steering arms are drawn down to the surface by an electric charge. This response resembles the way dirt bikers turn by extending a boot heel, researchers said. The researchers said they have also been able to get five of the devices to group-maneuver in cooperation under the same control system.Known as microelectromechanical system (MEMS) microrobots, the devices are of suitable scale for Lilliputian tasks such as moving around the interiors of laboratories-on-a-chip."