Two microrobots can be seen pirouetting to the music of a Strauss waltz on a dance floor just 1 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.
New research summaries describe the group’s latest accomplishment: getting five of the devices to group-maneuver in cooperation under the same control system.
“Our work constitutes the first implementation of an untethered, multi-microrobotic system"