How Gas Pump Knows When It's Time to Stop

When you're filling up your car at the gas station, the pump knows when to stop automatically thanks to a clever mechanism. Inside the nozzle, there's a tiny hole that sucks in air as you pump gas into your car. Once your tank is full, the gasoline covers this hole, creating pressure that signals the pump to shut off. It's like a built-in safety feature to prevent spills and overflows. So, next time you're at the pump, you can trust that it's got your back!