Another Great Reason to Walk to Work

Scientists have invented a knee brace which generates electricity as you walk, so that soon you’ll be able to auto-charge your phone on an afternoon stroll. It works on similar principles as a hybrid car, which collect energy whenever the vehicle slows. When hybrid cars brake, their regenerative brakes store energy which would have been released as heat. Similarly, the innovating knee brace collects the energy released at the knee whenever the leg slows. Cool!