Organic light-emitting diodes (OLEDs) are a new type of LED where a thin film of organic compounds is used to produce electroluminescence.
Yesterday, GM and Segway unveiled an electric-powered urban vehicle called the Puma. The Puma seats two people, and is said to reach a top speed of 35 miles per hour. The vehicle can go 35 miles before needing a recharge. Larry Burns, vice president of research and development for GM, said it would cost about […]