21st Century Inventions That Could Change Your Life

The Phone Fan

This seems like a silly invention, but when you're six hours into a summer festival with no wind, this would be a lifesaver. Most of these phone fans work by attaching the device to the charging port of your phone. Switch the fan on for a nice breeze! Be wary, though, some fans work better than others.

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The More You Know

  • A baby can cost new parents 750 hours of sleep in their first year.
  • Mount Rushmore cost less than $1 million.
  • The word "muscle" comes from a Latin term meaning "little mouse."
  • Crayola is literally "oily chalk."
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