Who doesn’t love vending machines? In the modern world, vending machines are used to pop out food or drinks but during the ancient Greece times, they were actually sacred. The first vending machine used coins to dispense a fixed amount of holy water. When the coin was deposited, it fell on a pan that is attached to a lever then the will lever open a valve which let some holy 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 up and turn off the valve.