There are twelve black dots at the intersections in this image ... An Extinction Illusion talks about a similar set of optical illusions. The paper's abstract explains the phenomenon thusly ...

Brain teasers come in many forms—some test mathematical skills, some focus on age-related puzzles, and others simply leave ...

Have you ever wondered what the black dots around your car windscreen ... which causes straight lines to appeared curved. The optical illusion would distort vision for drivers, so frits are ...

In fact, some say this optical illusion can let you know straight ... a sheet of white dots moves one direction while a sheet of black dots moves in the other direction. For a majority of people ...

Experts warn that the black enamel strip and dots, also known as a ‘frit’, helps to prevent "optical distortion”. Without the frit in place, motorists' vision out of the windscreen could ...

From eye-boggling images to logic-defying illusions that play with the subconscious mind, we’ve gathered five famous optical illusions ... dots against a gray background, with a black cross ...