BrainStuff

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How are movies stored on DVD discs? Jan 20, 2016

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How can you store an entire movie on one little DVD disc? It's all about compression! In this episode, Marshall explains the technical details and standards of video compression.

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Why shouldn't you go swimming right after a meal? Jan 18, 2016

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As children, many of us have been admonished not to go swimming for at least an hour after eating. But, as it turns out, there's biology behind this commonplace advice. Tune in to this episode to find out why you shouldn't swim right after you eat.

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What causes that howling sound in PA systems? Jan 13, 2016

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A public address system's speakers emit strange noises, or feedback, when sound gets re-amplified. Get a detailed explanation of how feedback occurs in this podcast from HowStuffWorks.com.A public address system's speakers emit strange noises, or feedback, when sound gets re-amplified. Get a detailed explanation of how feedback occurs in this podcast from HowStuffWorks.com.

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How does dry ice work? Jan 11, 2016

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Dry ice is different from regular ice in several ways. Find out what makes dry ice so unique -- and why it's so good for transporting perishables over long distances -- in this podcast from HowStuffWorks.com.

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Is it true that a diesel engine can operate underwater? Jan 08, 2016

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Under certain circumstances, diesel engines can operate while submerged in water. Find out what it takes to waterproof an engine -- and why diesel engines are better candidates than their gasoline counterparts -- in this episode of BrainStuff.

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Where does cork come from? Jan 06, 2016

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Most cork comes from special trees that grow in places near the Mediterranean Sea. Learn more about cork oak trees, cork properties, cork products and cork processing in this episode.

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What does Pez mean? Jan 04, 2016

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Today, Pez candy dispensers are a sweet treat for children and a novelty for adults. Originally, however, they were created to help adults quit smoking. Learn more about the fascinating history of Pez in this podcast from HowStuffWorks.com.

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How do we measure sea level? Jan 01, 2016

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Sea level is an important measurement, but it's also a complicated one. Find out why in this episode of BrainStuff.

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Is the sound on vinyl records better than on CDs? Dec 30, 2015

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The sound quality of vinyl records is sometimes better than that of CDs and DVDs -- and sometimes worse. Learn more about the difference between the sound quality of records, CDs and DVDs in this episode.

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How does high-speed rail work? Dec 28, 2015

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Although it's common in some countries, high-speed rail service isn't available in the United States -- yet. Tune in to learn more about this swift rail service -- and how soon we're likely to have it in the U.S. -- in this episode.

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