If you stare for a long time at a large coloured image and then glance at a white background, you'll see the same image appear, but in its complementary colours. That's because the receptors in ...

How to download movies and videos onto an iPad, from iTunes, Netflix, cloud services, and more Written by Dave Johnson edited by John Lynch ...

Incredible video footage has captured the moment an amazing rainbow cloud suddenly appeared in the sky. The multi-coloured light, which appears like a hole in the middle of the sky, was caught on ...

A rainbow-coloured cloud appeared in the air above Newcastle brightening up the morning sky. The phenomenon was captured on camera by John Bynon as he looked out on the city from the Civic Centre ...