These Mindbending Optical Illusions Will Break Your Brain

Columns or People?

Which do you see? The stair banister illusion depicts obvious columns, but in the negative space, you can make out the silhouettes of people. This is called a double image. Sometimes, double images are drawn two-dimensionally, making it even more difficult to decipher.

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The More You Know

  • The longest tennis rally lasted over 12 hours.
  • It's a tradition in Ireland that if you donated a pint of blood, they give you a pint of Guinness to replace the iron.
  • Humans are the only animals with chins.
  • When a piece of bread is toasted, it's called the "Maillard reaction."
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