You have seen a vending machine. Who hasn’t? Very rarely you will come across someone who hasn’t seen this fantastic scientific invention. So every time you have those unexpected hunger pangs, just look to find a vending machine in the vicinity. Just enter some money and grab a snack. Interestingly, not many people know that an Egyptian mathematician and engineer, Hero of Alexandria, built the first vending machine somewhere between 30 AD and 70 AD. Hero invented a lever mechanism that counterbalanced to deliver holy water after inserting a coin. Today, from novelty items to food, jewelry to … Continue reading “Eat Your Way Through A Vending Machine”