Shape-shifting, scuttling, microbots

INSERT INTO ARTICLE credit@MIT 2

The robot is able to move using an external magnetic field, which is projected from four coils in a box beneath it (pictured), without the need for a battery in the robot itself. The machine may be instructed to self-dissolve by entering a tank of acetone (also illustrated), which melts away everything but the magnet. Credit@Shuhei Miyashita

The robot is able to move using an external magnetic field, which is projected from four coils in a box beneath it (pictured), without the need for a battery in the robot itself. The machine may be instructed to self-dissolve by entering a tank of acetone (also illustrated), which melts away everything but the magnet. Credit@Shuhei Miyashita