Square wheel
From open-encyclopedia.com - the free encyclopedia.
A square wheel is a wheel that, instead of being circular, has the shape of a square. Such a wheel can roll smoothly if the ground consists of evenly shaped bumps of the right size and curvature. Stan Wagon, a mathematician at Macalester College, has constructed a bicycle with square wheels.
External link
- Math Trek: Riding on Square Wheels, Science News Online - contains illustrations and photos of Wagon's bicycle