BrainStuff

Latest Episodes:

How does a traffic light detect cars? Dec 25, 2015

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Traffic lights detect vehicles using a variety of methods. Check out this podcast from HowStuffWorks.com to find out how timers, inductive loops and other detectors keep traffic running smoothly.

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How can turbines change our energy future? Dec 23, 2015

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Gas turbine engines often power jet airplanes and helicopters, but they may turn up in other applications in the near future. Discover how turbine engines work in this podcast from HowStuffWorks.com.

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How do self-winding watches work? Dec 21, 2015

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Self-winding watches keep the time with the help of a piece of metal, gravity and the natural movement of your arm. Tune in to learn more about self-winding watches in this podcast from HowStuffWorks.com.

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How does catnip work? Dec 18, 2015

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You've probably heard that catnip drives felines wild, but did you know that it's a plant related to mint? And that it doesn't affect all cats? Find out how catnip works in this podcast from HowStuffWorks.com.

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Why do freezing temperatures yield both snow and rain? Dec 16, 2015

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When the temperature dips below freezing, precipitation often turns into snow, but sometimes you'll get freezing rain or sleet. Why? Find out in this podcast from HowStuffWorks.com.

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How do they make fortune cookies? Dec 14, 2015

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You've probably had countless fortune cookies after Chinese meals, but have you ever wondered how they're made? Discover the "food technology" behind those prescient little cookies in this episode of BrainStuff.

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How does a jet engine's afterburner work? Dec 11, 2015

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The afterburner on a jet engine adds thrust to the engine. Tune in as Marshall Brain explains how an afterburner works -- and the pros and cons of using one -- in this episode of BrainStuff.

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How does a magneto work? Dec 09, 2015

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A magneto is a kind of electrical generator used in small gasoline engines in lieu of a battery. Find out how magnetos work in this episode of BrainStuff.

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What is leather and where does it come from? Dec 07, 2015

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Most leather is made from processed cattle skin, although synthetic and other varieties exist. Learn more about leather in this episode of BrainStuff.

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Is there any way to see satellites that are in orbit? Dec 04, 2015

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There are hundreds of satellites orbiting the Earth, but it's not always easy to see them. Get Marshall's tips on how to spot satellites in this episode of BrainStuff.

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