This illusion – named Pinna's Illusory Intertwining Effect – first appeared in Shifts of Edges and Deformations of Patterns ...

The optical illusion going viral on Reddit challenges people to find 16 circles in a photo filled with rectangular panels.

A mind-boggling optical illusion is testing viewers' observational skills, challenging them to find a hidden plane within a detailed landscape. The image, filled with houses, roads, and buildings ...

A viral visual challenge is testing observation skills with an image containing eight hidden mistakes. Participants have just 10 seconds to spot all the errors, testing concentration, visual memory, ...

Test your mind with a fun optical illusion! Hidden among a sea of 'o's is a sneaky '0'. Spotting it reveals whether you're more creative or logical. Quick finders are analytical, detail-oriented ...

An optical illusion has been shared on Reddit that is so needlessly creepy it made me shiver. The illusion itself is mind-boggling and makes you want to watch twice, but it's the presentation of ...

A photonic engine The researchers have created a photonic engine that processes microwave and optical signals and can convert the signals between the two domains. It is a silicon chip that can ...