The First Vending Machine
Hero invented the first vending machine in the first century C.E., hoping to deter dishonest visitors from taking too much of the temple's holy water. The machine worked through a lever system: the deposited coin would roll onto a lever, weighing it down so that the other end lifted a plug from a container of holy water. When the coin fell off the lever, the flow of holy water ceased.
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Key Facts In This Video
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