Your blood is also red because of a mixture of iron and oxygen in a molecule called hemoglobin. So in a way, the ancient connection between the planet Mars and blood wasn’t completely wrong. Rust, ...

The visible light spectrum detectable by human eyes makes up only a small fraction of wavelengths (0.0035%, to be exact). Those colors are made available to us by millions of densely packed ...

All the latest science news on visible-spectrum from Phys.org. Find the latest news, advancements, and breakthroughs.

A new camera setup can record three-dimensional movies with a single pixel. Moreover, the technique can obtain images outside the visible spectrum and even through tissues. The Kobe University ...

Is black a colour? Black isn’t in the rainbow, but where does it fit in the colour spectrum? What makes something appear ...

The rainbow may be due for an update. A new, high-tech method for displaying color has allowed five test subjects to see a shade beyond the standard human range.The research, published April 18 in ...

Men and women really don't see eye to eye, according to a new study. Females are better at discriminating among colors, researchers say, while males excel at tracking fast-moving objects and ...

WHILE engaged on work in connection with the discharge of electrification by ultra-violet light, we have come across a fact which it may be convenient to state by itself, viz. that the spectrum of ...

At least, when it comes to one color people think is on the spectrum. Popular Mechanics reports that purple is a “pigment of your imagination”: The human eye doesn’t actually see purple.