Sometimes, reality plays tricks on us — and what seems obvious at first glance turns out to be something completely different. From perfectly timed photos to clever illusions created by pure ...

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 ...

The Best Illusion of the Year contest offers researchers, and participants, an opportunity to explore the gaps and limits of human perception. By Katrina Miller Take a look at this video of a waiting ...

We trust our brains to do a lot. From remembering birthdays to making sure you never forget an embarrassing moment that happened years ago, we can’t avoid what it chooses to focus on — and what it ...

How optical illusions work has been long-debated among scientists and philosophers, who wonder whether these illusions stem from neural processing in the eye or involve higher-level cognitive ...

Everyone loves an optical illusion — even if they leave us completely stumped — and they're all around us in the natural world. From an underwater waterfall in the Indian Ocean to a surrealist scene ...

If you have never seen an optical illusion, it is an image that makes you see things differently than they actually are. Optical illusions trick your eyes into believing you see something that is not ...

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