This one is called Optical Fun.
"The cockroach is placed on top of a modified trackball - a computer-mouse-type device - that is hooked up to some electronics. The cockroach is held gently in place above the ball so that when the cockroach moves it makes the ball spin: a little bit like a two-dimensional treadmill. The electronics (optical encoders) within the trackball send out small electrical pulses to some electronics that make the motors move in a similar direction to where the cockroach is moving on the ball."
Some people have commented negatively on the smoke stack and I suppose the urban landscape doesn't appeal to everyone so we'll just delete the smoke stack and click the just-add-water-button and voila!
Perhaps this will be my new view after global warming kicks in. Yikes!