Believe It Or Not, These Aren't Actually Design Flaws

Manhole Covers

There's a reason manhole covers are round. It makes it nearly impossible for a person to fall inside of one. Pedestrians almost rarely fall into manholes and it's thanks to this safety-conscious design.

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The More You Know

  • Abraham Lincoln was a wrestling champion.
  • To have an ice cold can in just a few minutes, put your drink in a large pot and cover it with ice. Fill the pot with water, add a couple cups of salt, and stir until the salt is dissolved. Your canned beverage will magically be cold.
  • John Tyler, the 10th president of the United States, was born in 1790. He has a grandson that is alive today.
  • Instead of hanging unsightly fly paper, take a cup, fill it with an inch of red wine vinegar, seal the top with plastic wrap, and poke a few small holes in it with a pen. The flies will be attracted to the scent of the vinegar, but won't be able to get out.
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