An optical illusion is a visual phenomenon where our perception of thinking about an image differs from objective reality. This image is seen as an artistic forest scene designed as a hidden-object or ...

A reanalysis of a 1919 study suggests that a separate illusion, the "horizon effect," played a bigger role in warping visual perception than dazzle paint. Reading time 3 minutes During World War I, ...

Inspired by amphibians such as the wood frog, investigators designed and synthesized a new type of camouflage skin involving one-dimensional photonic crystal structures assembled in three-dimensional ...