The Insides of These Everyday Objects Are Totally Unexpected

Bullets

There are 17 different bullets here, but each one of them is so different. Notice how they each have the black in the bottom of it and metal at the top. This gives the weapon maximum impact upon being shot. So small, and yet so dangerous, these are nothing to be trifled with...

Rattlesnake's Rattle

You don't ever want to hear this sound in real life! A rattlesnake is a surefire way to have a bad day, though it's physical rattle can be very pretty. The segmented pieces literally rattle when they vibrate together to create the distinctive shaking sound. Clashing together makes the noise that warns you to stay away!

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The More You Know

  • The unicorn is the national animal of Scotland.
  • A cow-bison hybrid is called a "beefalo."
  • The world's most densely populated island is the size of two soccer fields.
  • Some cats are allergic to people.
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Post originally appeared on Upbeat News.