These Mindbending Optical Illusions Will Break Your Brain

Chubb Illusion

The Chubb illusion occurs when the contrast of an object varies based on its relative contrast against the field on which it is displayed. This error in visual perception was discovered by Charles Chubb and colleagues in 1989. Even though the circles depicted here are identical, one seems to have a higher contrast than the other.

Advertisement

Next Page →

The More You Know

  • The world's most densely populated island is the size of two soccer fields.
  • A team of six women programmed the first digital computer.
  • Beavers have transparent eyelids so they can see underwater.
  • On Mars, sunsets are blue.
Next Page →