Add Yahoo as a preferred source to see more of our stories on Google. You perceive electromagnetic radiation in the form of light in all the colors of the rainbow. MirageC/Movement via Getty Images ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." The human eye does not actually see purple, as purple is not a color on the visual spectrum. Purple is a ...

Researchers in Quebec, Canda, have developed the first fiber laser that can produce femtosecond pulses in the visible range of the electromagnetic spectrum. Fiber lasers producing ultrashort, bright ...