How can a cat toy make you the most popular person in the bar?
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This little trick seems to defy the laws of gravity — but it’s really just simple physics.
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To pull it off, you’ll need a wine glass, a small bouncy ball, and a straw. Bet your friends that you can move the ball from one side of the straw to the other without touching it.
When nobody can guess what to do, just create a little tornado in the wine glass and watch their jaws drop.
Looking for more bar tricks? Start here.