The skinny little rider you see perched atop the back seat of this tandem is Joules, robot cyclist extraordinaire. He's the creation of a guy called Chris who, challenged by his son to create an electric tandem that worked via pedal power, more than satisfied the brief.
The nuts-and-bolts robot is powered by a PMG-132 electric motor and, unlike most lazy-assed back-end tandem riders, does all the work himself. Not sure whether I could live with that — I'd probably get so fat from lack of exercise that the tandem would crumple when I got on, and Joules would never forgive me. Catch a video of Joules and Chris after the jump.