21st Century Inventions That Could Change Your Life

Metal Detecting Shoes

No, this isn't an ankle monitor. It's a metal detector inside of a pair of shoes! Now, you can comfortably take a walk on the beach all the while looking for treasures, no heavy equipment needed! You might get some looks and some people might think you are on house arrest, but little do they know that you're hunting for treasure!

The More You Know

Tic Tac mints are named after the sound their container makes.
The tongue is the only muscle in the body attached from one end.
Fleas can jump up to 100 times their body length.
Great white sharks are so scared of killer whales that they'll avoid an area for up to a year after spotting one.

Post originally appeared on Upbeat News.