The website and app ismy.blue shows users a series of colour blocks and asks them to click whether they are green and blue..

On a bright, clear day, the sky stretches above us in a brilliant shade of blue. But have you ever wondered why? The answer lies in a fascinating phenomenon known as Rayleigh scattering ...

Why the Sky Changes Colors at Sunset. What causes those beautiful reds, ... resulting in a blue sky. During a sunset, however, light scattering works differently. ... causing them to block sunlight.

The website and app ismy.blue shows users a series of colour blocks and asks them to click whether they are green and blue. In this way, it determines where your personal boundary is on the colour ...