Episode

BrainStuff

HowStuffWorks

Science & Medicine, Natural Sciences, Society & Culture, Technology

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Natural Sciences 5
Science & Medicine 16

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.

Why is there a small hole on the top of spray can lids?

November 3rd, 2008

Episode 111 of 1070 episodes

Many spray can lids have a tiny hole at the top. Check out this HowStuffWorks podcast to learn more about spray cans, shipping, and air pressure.

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