Add Yahoo as a preferred source to see more of our stories on Google. When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: GeorgePeters via ...

A couple of years ago an optical illusion came along and almost broke our site. Over three million people read an article about the most dizzying illusion ever to grace our screens – the rotating ...

An optical illusion is a visual phenomenon in which our perception of an image differs from objective reality. This image is perceived as a motion geometric distortion illusion, where the image seems ...

Optical illusions have fascinated people for centuries. They play tricks on our eyes and brains, making us see things that aren’t really there. Sometimes, a static image can appear to move, or colours ...