Fascinating Inventions You Never Knew Existed

Thirsty? No Problem.

With the flask tie, your wildest dreams can come true. Not allowed to bring in noisy drinks to the meeting? No problem, just take a sip from your flask tie and stay hydrated... discretely, of course.

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The More You Know

  • An oyster's sex is fluid.
  • Beavers have transparent eyelids so they can see underwater.
  • Researchers have found that swearing when in pain may release pain-killing endorphins.
  • Wilt Chamberlain is in the Volleyball Hall of Fame.
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Post originally appeared on Upbeat News.