The invention demonstrated how simple mechanical principles could automate everyday tasks. The system relied on gravity, levers, and carefully arranged components. A coin dropped into the device would land on a small https://pocketcasts.com/podcast/huy-hoang-podcast/1eef9730-8383-013f-f21c-0affd341b2cf/e39life/014841df-e3f5-4184-8909-637505cddd76?hl=en