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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 do thirty pounds of air in your tires hold up two tons of car?

May 21st, 2010

Episode 628 of 1145 episodes

Cars are heavy machines, so how can a few small, pressurized tires support their weight? Marshall Brain explains how tire pressure and contact patches work in this episode.

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