Video: One of my life dreams as a child was to be able to fool a vending machine with coin-like objects. I mean, how smart could a vending machine be, right? Wrong. More like how dumb a kid I was. Vending machines use light sensors to measure the size of a coin and electromagnets to detect the metal type to determine what kind of coin it is. If you're not shaped like a dollar and built like a dollar, you ain't a dollar in their book. The whole system of what happens inside a vending machine is actually pretty interesting.
How Do Vending Machines Understand Fake And Real Coins?
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