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 How We Will Colonise The Moon Meet the Man Who Beat ‘Pac-Man’ A New Breed of Intellectual Property Why The Vertical Takeoff Airliner Failed: The Rotodyne Story USC Mixed Reality Lab’s VR Redirected Walking Demo How Big Can a Human Being Get?