Michael Johnson

Who doesn’t want a superpower? I started building things a few years ago that focus on sensory-based inventions: a ring device that allows the wearer to experience magnetic fields as a vibration; an ultrasonic walking stick for the blind with similar haptic feedback; some preliminary work on ultrasound hearing for echolocation. And I’ve been working to build a battery that’s easily constructed, bulky, but very durable. Batteries are an intensely difficult thing to manufacture well—the worst battery you could buy in a store is a marvel of engineering.