Grec articles
Who is credited with conceptualizing the original device fitting the description of a vending machine in the 1st century AD?
What specific substance was dispensed by Hero of Alexandria's gravity-fed apparatus in temples?
Hero's dispenser operated purely on which two foundational engineering concepts?
What modern engineering concept is cited as an early application demonstrated by Hero's machine regarding input and output?
How did the coin's action in Hero's machine differ fundamentally from early 20th-century machines like Leverett's?
Where was Hero's mechanical dispensing device reportedly deployed during the time of Roman rule?
What core societal need did automating the distribution of consecrated resources using Hero's device help manage in ancient temple economies?
What action was necessary for the water flow to automatically cease in Hero's mechanism?
What specific commercial product was dispensed by Nathaniel J. Leverett's significant vending machine invention around 1902?