How vending machines work is a mystery to many people. Just how does it know which coins you are using, or which coins should be rejected?
Vending machines, found in offices, hospitals, shopping malls, road service stations, airports, railway stations… just about anywhere, are a sought after convenience when it comes to snacking. But when they don’t work, won’t accept your money or teasingly leave your desired snack stuck halfway down the drop chute, they are also the source of much frustration!
To help us understand just how these machines work, the helpful people at the Science Channel has created a video to explain it all.
Trouble viewing the video? Watch it on YouTube.