The Most Bizarre Medical Tools from Back in the Day

Cobalt Bomb Machine

Although the name sounds scary, it isn’t as intense as it sounds. This was used to help detect and cure cancer in the early 20th century.


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The More You Know

  • Beavers have transparent eyelids so they can see underwater.
  • A single dollar bill costs 5 cents to make.
  • Reed Hasting started Netflix after receiving $40 in late fees when returning Apollo 13.
  • 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.
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