How Do Vending Machines Detect Fake Coins?
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MACHINES: HOW THEY WORKThursdays 10/9c on ScienceThis machine can decipher coins with pinpoint accuracy. Light sensors measure the size while electromagnets detect the metal type of the coin.More Machines!http://www.sciencechannel.com/tv-shows/machines-how-they-work/Full episodes streaming FREE on Science GO:https://www.sciencechannelgo.com/machines-how-they-work/Subscribe to Science Channel:http://bit.ly/SubscribeScienceCheck out SCI2 for infinitely awesome science videos. Every day.http://bit.ly/SCI2YT
