When you buy through links on our articles, Future and its syndication partners may earn a commission. The Vienna team stitched together slices of light to create snapshots. At rest (left), the cube ...

Imagine describing the precise dimensions of a common object—like a coin—for another person. Did you move your hand, pretending to pick one up to show its size? If so, you likely weren’t alone. A new ...

Humans are fascinated by visual illusions, which occur when there is a mismatch between the pattern of light that falls on the retina, and what we perceive. Before books, films, and the internet ...

This brings optical illusions to new heights. Thought spotting all the animals in this visual menagerie was hard? Puzzlers are frazzling their noodles over this high altitude illusion, which ...

This new optical illusion is testing everyone’s observation skills; only a few people can find everything in 15 seconds. An optical illusion puzzle has become a big challenge for people of all ages.

Artists and scientists have been creating optical illusions for ages now. It is only since the pandemic that the internet has started flooding with optical illusion tests to test IQ and discover ...

Optical illusions are interesting, but they're quite commonplace. Physical illusions provide an impossible experience that can actually be felt rather than just seen. Say there are three matchboxes on ...