Hidden letter and number optical illusions are fun because they look easy at first. But once the timer starts, the brain ...

Featuring a blurry image of abstract yellows, oranges, purples and blues, this optical illusion appears pretty plain. It's ...

Optical illusions are older than you think. The first optical illusions date back to 20,000 BC and took the form of cave sculptings. Nowadays they are found all over the place – on screens, in books ...

Our brains create false perceptions through these illusions, which make us see things that do not exist while they distort ...

Optical illusions are not just fun internet games. These visual illusions are a fantastic way to test your eyesight and ...

Our brains create false perceptions through these illusions, which make us see things that do not exist while they distort ...

An optical illusion is a fascinating visual trick that deceives the brain into seeing something different from reality. These illusions occur when the information our eyes send to the brain is ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. In Head Trip, PopSci explores the relationship between our brains ...

An optical illusion claiming to show either a fish or a mermaid is having a viral moment on Twitter, but there’s more to the post than meets the eye. People love to be right in public places, which ...