The ocean is blue because water absorbs colors in the red part of the light spectrum. Like a filter, this leaves behind colors in the blue part of the light spectrum for us to see. When sunlight hits ...

A small team of chemists, having learned the secrets of light absorption from chlorophylls a and b, can now tune molecules to absorb anywhere in the solar spectrum. They are using this facility to ...

How do two colors mix to make a new color? Answer: Think of light as a wave travelling from one place to another, with different colors produced by variation in the distance between peaks of the wave ...

How do we see color in the first place? What color is a banana? Duh, it’s yellow. But what is yellow? Now that you mention it, how do we see color in the first place? That’s the series of questions ...

Researchers have devised a technology that can bring true color to infrared imaging systems, like the one the Predator used to track Arnold Schwarzenegger through the jungle. Rather than creating ...

The human eye does not actually see purple, as purple is not a color on the visual spectrum. Purple is a combination of wavelengths from opposite extremes of the spectrum, which technically deosn’t ...