Sunlight looks smooth and white to the naked eye, but when I break it apart with a prism or a spectrograph, it turns out to be riddled with gaps. Instead of a perfect rainbow, the Sun’s light is ...

The incandescent light bulb was one of the first early applications of electricity, and it’s hard to underestimate its importance. But before the electric light, people didn’t live in darkness — they ...

Beauty in the sky is splashes of colors and arcs of light as rainbows, halos, and sundogs. How do they happen? When light passes from air into water, or from air into ice, it bends slightly and ...

Aiming to make solar energy less costly and more efficient, a company in Tucson is using the concept of the prism to fundamentally change the way sunlight is captured. New York-based Prism Solar ...