The answer is that water really is blue, but only very faintly. You need a huge amount of it in one place to see the colour at all. As light travels into water, all the red and green light (all ...

From the sky to the sea, there are several things on Earth that we all know to be blue. But where does blue end and green begin? In the hopes of answering this question, Dr Patrick Mineault, a ...

What colour would you say this woman's eyes are? Your brain will probably tell you they are blue. But it has fallen victim to a mind-boggling optical illusion, as it turns out that the model's ...

All of that's related to how much melanin is there." Blue-eyed reindeer Humans are not the only animals whose eyes change colour. Perhaps the most dramatic change is the seasonal variation in ...

In 1993, crayon-maker Crayola conducted an unscientific, but intriguing poll: it asked US children to name their favourite crayon colour. Most chose a fairly standard blue, but three other blue ...

Baby blue, also called powder blue, sky blue, or pastel blue is a universally flattering colour. It softens sharp features, doesn’t clash with Indian skin tones (a big win), and instantly makes ...