The field of nanotechnology just took a hop, a skip, and a jump past a xenon atom stick figure and mechanical gears microns in diameter. No, researchers at Duke University didn't take up country line dancing, they created microscopic robots microns in size and caused them to dance across a one square millimeter floor. The microbots are shaped more like spatulae with guide rods attached to them than people, but they capable of interacting with each other as well as shimmying across the miniscule dance surface, propelled by oscillations in an electrical field... which happened to have the same rhythm …