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.
 Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

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. Learn more about your ad-choices at https://www.iheartpodcastnetwork.com

How does a credit card's magnetic stripe work?

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.

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How does a credit card's magnetic stripe work?

How does a credit card's magnetic stripe work?