However, the faces themselves are actually identical shades of grey. The origin of the cartoon ... This is what's known as a 'colour saturation optical illusion', and comes down to the ways ...

T hese days, a fascinating optical illusion is viral on all the social media platforms where an amazing black and gray stripey swirl reveals a totally buried hidden number. But here, that is not ...

Unraveling the mathematical side to illusion, Sugihara believes, would potentially decrease the hazards of optical illusions, in situations like driving for example. For 42 years, Sugihara has ...