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How Do Vending Machines Detect Fake Coins? - playithub.com
Published: 1 year ago By: Science Channel

By: Science ChannelPublished: 1 year ago

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MACHINES: HOW THEY WORK
Thursdays 10/9c on Science
This machine can decipher coins with pinpoint accuracy. Light sensors measure the size while electromagnets detect the metal type of the coin.

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