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BrainStuff: Episodes

Dynamite is a type of chemical explosive. Discover how explosives from gasoline to dynamite work in this episode of BrainStuff.<div class="feedflare">
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Cats tend to purr when they're happy, but pleasure isn't the only reason for this behavior. And they aren't the only animals who purr. Find out why and how cats and other animals purr in this episode of BrainStuff.<div class="feedflare">
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Like many cereals, rice krispies are made by puffing grains -- in this case, rice. Find out how rice crispies and other puffed cereals are manufactured in this episode of BrainStuff.<div class="feedflare">
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Batteries, particularly car batteries, seem to go dead and then come back to life after a resting period. How does this self-recharging feature of batteries work? Find out in this episode of BrainStuff.<div class="feedflare">
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Artificial flavors imitate natural flavors and are found in many processed products. Learn more about the chemistry of flavors, both natural and artificial, in this episode of BrainStuff.<div class="feedflare">
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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.<div class="feedflare">
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Water is made up of hydrogen and oxygen, so why aren't we able to breathe underwater? Find out in this episode of BrainStuff.<div class="feedflare">
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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.<div class="feedflare">
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In this episode of BrainStuff, Marshall explains the physics behind satellites and orbits.<div class="feedflare">
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In this episode of BrainStuff, Marshall reveals three common techniques for measuring the height of tall objects like towers.<div class="feedflare">
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A barbeque grill has a push-button lighter that relies on piezoelectricity to generate a spark. Learn more about how piezoelectricity works -- and the kinds of devices that use piezoelectric materials -- in this episode of BrainStuff.<div class="feedflare">
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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.<div class="feedflare">
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Tools that say "drop forged" have been created using a technique called drop forging. Find out how drop forging and several other kinds of forging work, and why drop forging is a sign of a sturdy tool, in this episode of BrainStuff.<div class="feedflare">
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A T1 line is a dedicated fiber optic or copper cable that provides businesses with far more digital data than a residential line. Discover how T1 and other kinds of fiber optic lines work in this episode of BrainStuff.<div class="feedflare">
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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.<div class="feedflare">
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In the current U.S. debate over health care reform, a government-sponsored public option has been a controversial topic. Tune in to this episode of BrainStuff to hear Marshall Brain explain the nuances and implications of the public option.<div class="feedflare">
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Table salt contains iodine to help prevent thyroid problems and iodine deficiencies. Find out how table salt keeps your thyroid happy -- and what iodine has to do with a nuclear attack -- in this episode of BrainStuff.<div class="feedflare">
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Sodas and soft drinks contain a surprising amount of sugar -- more than you might expect. Tune in as Marshall Brain reveals how much sugar is in soda in this episode of BrainStuff.<div class="feedflare">
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Desktop computers and laptops only have so many USB ports, so what do you do when you want to plug in more USB devices and they're all full? You buy a USB hub. Find out how these hubs work, and which kind you should get, in this episode of BrainStuff.<div class="feedflare">
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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.<div class="feedflare">
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