Real-Life Optical Illusions That Will Blow Your Mind

Spraying the Sky

Little do people know, this is actually how clouds are made. Some big dude up in the sky sprays cirrus clouds out of his aerosol can and makes it rain on the cornfields over Idaho. Without the man with the can, there would be no rain. There's no need to thank him though, he loves to do his job. 

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The More You Know

  • There are around 60,000 miles of blood vessels in the human body. If you took them all out and laid them end to end, they’d stretch around the world more than twice.
  • When two white-faced capuchin monkeys meet, they say hello by sticking their fingers into each other's noses.
  • The shortest scientific –ology word is "oology."
  • Dentistry is the oldest profession in the world.
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