These Mindbending Optical Illusions Will Break Your Brain

Adelson’s Checker Shadow Illusion

The image features a black-and-white checkerboard with a green cylinder on top of it, casting a diagonal shadow across the board. The black and white squares A and B are actually the same shade of gray.

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The More You Know

  • In 1966 and 1967, soldiers testing Agent Orange in Canada were told the chemical was completely safe and sprayed it on each other to cool off.
  • There is a fish with transparent bones and white blood.
  • Four times more people speak English as a second language than as a native one.
  • Almost all chickens eaten today come from the winner of the 1948 'Chicken of Tomorrow' Contest whose genetics now dominate poultry farms worldwide.
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