Vending Machine

VENDING MACHINE

In many countries, vending machines generally serve the purpose of selling snaks, beverages, but are also common in busy locations to sell other items such as newspaper

Some countries sell alcoholic beverages such as beer vending machines, while other countries do not allow this.

The first vending machine is believed to have been invented by Hero of Alexandria, a first-century inventor. His machine accepted a coin and then dispensed a fixed amount of holy water coin was deposited, it fell upon a pan attached to a lever. The lever opened up a valve which let some water flow out. The pan continued to tilt with the weight of the coin until it fell off, at which point a counter-weight would snap the lever back up and turn off the valve.

source: wikipedia.org