Let’s face it. The century old Edison bulb is a bad deal. The bulb is cheap to buy but expensive to operate. The bulb wastes 95% of its energy. Over its lifetime, a 60-watt incandescent bulb will cost you roughly $20 more in electricity ...

University of Illinois professor Nick Holonyak had no way of knowing in 1962 that someday his own work would rival Thomas Edison’s 125-year old incandescent light bulb. Holonyak was a young researcher at General Electric Company when he ...