Science & Medicine,
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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.
April 1st, 2009
Episode 223 of 1069 episodes
Nails are measured by a unit called a penny. This podcast from HowStuffWorks.com explains what the penny designation means -- and where it comes from.
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