A team of Chinese and American engineers has unveiled a unique robot called WHERE-Bot. The robot uses a children's spring toy wrapped in a ring to move.

This robot is able to move in all directions and bypass obstacles, relying solely on its mechanical properties. It is completely devoid of any sensors. Instead of traditional navigation methods, the robot uses its own mechanical characteristics.

The principle of operation is that a spring turned inside out by an integrated servo creates motion by the difference in frictional forces. The robot design includes 37 coils of spiral connected into a continuous ring. Inside are mechanisms that allow the coils to interact with a central hub, allowing the robot to rotate and move in a circular path.

Although the current prototype is limited to traveling on hard surfaces, the researchers plan to improve its design to work on different types of terrain in the future