Have you ever wondered why there's that one red bulb in your string of Christmas lights? It's not just an ordinary spare bulb ...

Have you ever wondered why there's that one red bulb in your string of Christmas lights? It's not just an ordinary spare bulb ...

Forget LEDs, researchers from the University of Michigan have developed a new type of incandescent light bulb. The device is ...

With homes, parks and businesses decked in holiday lighting, the glow from those lights can cause light pollution and harm ...