BrainStuff
Whether the topic is popcorn or particle physics, you can count on BrainStuff to explore -- and explain -- the everyday science in the world around us.

How gas pumps work

July 14, 20082 min
Next time you're filling up your tank at a gas station, ask yourself this: how does the nozzle know when the tank is full? Learn more about gas pumps in this HowStuffWorks podcast.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices