How Does a Gas Pump Know When to Stop Pumping? If you’ve ever put gas in a car, you’ve probably noticed how the gas pump shuts off when your tank is full. But how does it know to do that? Well it is called black magic. Facebook Prev Article Next Article Discover Checkout these cool gadgets... Related Posts What Is Chemical Evolution? What Happens To Your Poop After You Flush? How Gyros Work – Vsauce Why incompetent people think they’re amazing Why People Keep Eating Tide Pods What Does Earth Look Like?