These Mindbending Optical Illusions Will Break Your Brain

Thaumatrope

A thaumatrope is an optical toy that became popular in the 19th century. A disk with a picture on each side is attached to two pieces of string. By twirling the strings quickly between one’s fingers, two pictures appear to blend into one.

Advertisement

Next Page →

The More You Know

  • Dogs can learn up to 165 words.
  • M&M stands for Mars and Murrie.
  • For 67 consecutive years, Mary was America's most popular female baby name. Linda broke the streak in 1947.
  • Mark Zuckerberg said a voting mechanism that says whether posts are good or bad is 'not something that we think is good for the world'.
Next Page →