Kurzgesagt Podcast: Science Revealed

← Kurzgesagt Podcast: Science Revealed29 sept · 46 min

How Do Vending Machines Detect Fake Coins?

How Do Vending Machines Detect Fake Coins?29 sept46 min

Ever wondered how a vending machine knows whether a coin is real or counterfeit?

In this episode, we take a fascinating look inside the technology behind coin validation. Discover how vending machines analyze coins using factors such as size, weight, material, magnetic properties, and other physical characteristics to determine whether a coin is genuine.

From the moment a coin enters the machine to the instant it is accepted or rejected, we explore the clever engineering that makes this everyday technology work.

A simple question with a surprisingly sophisticated answer.

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