Jun 10, 2011 EDWARD Electric Diwheel
EDWARD is a diwheel. That is, it’s a vehicle with both its wheels axially aligned, instead of one in front of the other like a bike. The motors in the wheels are controlled by a joystick, and this means that, by spinning them in opposite directions, you can quite literally turn on a dime (or over a dime, should you put one beneath the machine). You can also lock the wheels to the chair with a handbrake, which will spin the rider along with the wheels for some hot, nausea-inducing action.
Via Wired