Hygrobot Robot: Smart Micro Robot
This "hygrobot" looks like a table with asymmetric legs. When placed on moist filter paper, the top of the table slowly absorbs moisture from the air and curls up, dragging the rear leg forward. As the top of the robot bends, it is exposed to the drier air higher above the wet surface, which causes the robot to lose some of its previously absorbed moisture and return to its original shape, this time pushing the front leg forward.
- Country: South Korea
- Company: Seoul National University