REVEAL 004 / Everyday engineering
How Does a Petrol Pump Know Your Tank Is Full?
That familiar click at the petrol station has a mechanism behind it. This short reveal follows the tiny sensing hole in the nozzle and the automatic shut-off it helps trigger. It is a small detail hiding inside something millions of people use every day.
Watch on YouTubeOur visual models are simplified to explain the idea. Have a question or spotted something we should revisit? Tell us.