Watch a one-legged robot hop about as researchers try to knock it over

A one-legged robot that can stand, run and keep its balance on sloping or unsteady surfaces could offer a cheaper route to bipedal bots and self-balancing exoskeletons. Researchers at the Toyota Technological Institute (TTI) in Nagoya, Japan, built their cut-price robot, dubbed TTI Hopper, using simple motors and gears for less than a thousand dollars, then created an algorithm that compensates for the limited capabilities of these components. Read more: