Science & Medicine,
Society & Culture,
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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.
May 17th, 2010
Episode 624 of 1093 episodes
The magnetic stripe on the back of the card plays a key role in transactions made by credit card. Learn more about how these "mag stripes" work in this episode of BrainStuff.
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