Benham’s disk is a simple illusion with a spinning circle, half black ... focus can tell a black and white world from a colorful one. And yet there’s an optical illusion that plays tricks ...

But this optical illusion uses what's called the Fechner ... and echoes the more famous Benham's Top - a black and white spinning top that also causes some people to see colour.

This head-spinning optical illusion will have you second guessing ... One is all black while the other flashes between black and white on the gray background. The rings appear to be moving at ...

A MIND-BOGGLING optical illusion has left viewers having to ... In the video, layers of black and white circles made up of tiny blocks spin in different directions at the same time.

American psychologist Joseph Jastrow made this illusion in 1899 – to make a point about how the brain perceives what is in ...

"This is a black and white photograph. Only the lines have colour," wrote Mr Page while sharing the pic online. Take a look at the optical illusion below: This is a black and white photograph.

Your brain thinks there’s a black dot inside each white ... spinning around a circle, but both are staying completely still. Boost your brainpower even more with these brain games. Optical ...

Oyvind Kolas has produced a number of images in which he uses a "colour assimilation grid illusion" over black and white photographs ... Image: Optical illusion with diagonal lines.

The internet has a bottomless repository of optical illusions ... Spinning Dancer. This seemingly-simple animation, created in 2003 by Japanese web designer Nobuyuki Kayahara, features a black ...

Holly McKee was shopping for a Halloween costume for her younger sister at Asda supermarket in Dundee Milton, Scotland, when she came across an optical illusion ... like a black and white filter ...