Food Non-fiction

This episode is about vending machines. The first reference to a vending machine is from the 1st century AD in Egypt. The reference is in a book called “Pneumatika”, written by Hero of Alexandria. In it, there is a detailed description and a picture of a device, which dispensed water when you put in a five-drachma coin. This was invented for dispensing equal amounts of sacrificial water at Egyptian temples. This was a source of money for the Egyptian temples, and it also made sure everyone got the same amount of holy water. Here is how it worked: Imagine a teeter totter. When a coin was dropped into the holy water dispenser, it fell on one end of the teeter totter, causing the other end to lift up, also opening a little exit which let the holy water out. As the teeter totter moved down on the side with the coin, the coin eventually fell off. Once the coin fell, the teeter totter reset and the water exit closed. Unfortunately, one of these devices has never been found, so we don’t know if this was just a desig