Poker Tells: One of the Top 25 Inventions of 2006

Matthew C. Grossman, Student, Austin, TX. Shift Bicycle: This bicycle is intended to help small children learn to balance on their own without the crutch of training wheels and the worry of skinned knees. The bicycle features two rear wheels that are spread apart at slow speeds to provide critical stability, and as the rider gains speed, the two rear wheels merge together to act as one wheel until the rider reduces speed and consequently returns the bicycle to the two wheel configuration. Source: www.makezine.com