These Mindbending Optical Illusions Will Break Your Brain

Fraser Spiral Illusion

Discovered by psychologist Sir James Fraser in 1908, this optical illusion tricks the brain into thinking that the black and white lines are spiraling inward. However, if you trace one individual line, it becomes obvious that the image is made of concentric circles rather than a spiral.

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The More You Know

  • M&M stands for Mars and Murrie.
  • The sun and moon appear to be the same size in the sky because of an astonishing coincidence: the moon is 400 times smaller but 400 times closer.
  • You only breathe out of one nostril at a time.
  • The hashtag symbol is technically called an octothorpe.
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