People love the rainbow of ROYGBIV colors: red, orange, yellow, green, blue, indigo and violet. Human eyes perceive visible light as this array of colors. You may notice that some colors you can ...

The world is full of animals and plants displaying a full spectrum of colors, but for some species, time is running out. These Gouldian finches show how colorful nature can be and what we might lose ...

Color harmony, meaning the principle of colors working well together, is a significant component of design. Architects, designers and specifiers must strategically consider how colors will interact in ...

It is a bit tamer than you might imagine. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it works. When you look up at the night sky, it's easy to think ...

A PERUSAL of the articles which have appeared in your journal on this subject (NATURE, vol. lxxxiii., pp. 48, 68, 188, 487, and vol. lxxxiv., p. 87) leads me to ask if the spectrum of water has ever ...