Op Art: Creating Optical Illusions in Artwork

Optical illusion will make you see this photo completely differently

Optical illusion may make you see a ripple moving through picture of circles

“Reality” is constructed by your brain. Here’s what that means, and why it matters.

Optical illusions: How do they trick the brain?

Everyone sees the piles of poker chips – but you’ve got a gambler’s eye if you spy the single white one in 15 seconds