Robo-Wheelchair Climbs Stairs! [Video]

The robotic wheelchair senses the topography of a surface and decides whether to roll across it, or walk. Wheels are the most efficient way to get around, but they can't take you everywhere. This new robotic wheelchair designed in Japan can go almost anywhere, however--it can swivel its axles up and down to climb up stairs, onto curbs or over obstacles. All the user has to do is move a joystick to point it in the desired direction, and the robo-chair figures out what to do. Sensors on its feet d...