BrainStuff

Latest Episodes:

How do they get the lead in a wooden pencil? Apr 13, 2015

Show notes

Today's pencils are manufactured very differently than the original versions; but they still use a material called graphite, which isn't lead at all. How does the graphite get in the pencil? Find out in this episode.

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How can a valet rip you off? Apr 10, 2015

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Once relegated to high-end restaurants and clubs, valets are increasingly common across the United States. But how can you trust your valet -- and how will you know if the valet is scamming you? Tune in and find out.

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How Proton Therapy Works Apr 08, 2015

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As a method of treating cancer, proton therapy has great potential. But how does it work, exactly, and what makes it superior to other forms of cancer treatment? Tune in and find out.

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What is a lightyear? Apr 03, 2015

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A lightyear is a way of measuring distance -- specifically, the distance light can travel in one year. Just how far is that? Check out this podcast from HowStuffWorks to learn more about astronomy.

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How much oxygen does a person consume in a day? Apr 01, 2015

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The average adult at rest inhales and exhales between 7 to 8 liters of air each minutes. Check out this HowStuffWorks podcast to learn how much oxygen a person uses during a day of inhalation and exhalation.

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How does chlorine bleach work? Mar 27, 2015

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When you buy a gallon of bleach at the grocery store, what are you actually purchasing? Check out this HowStuffWorks podcast to learn more about bleach, chlorine and the chemical reactions behind these products.

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Why can't we breathe underwater? Mar 25, 2015

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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.

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What does it mean when a car has dual overhead cams? Mar 23, 2015

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A camshaft plays an integral role in the functioning of an engine. And dual overhead cams ramp up a machine's performance even more. Find out how dual overhead camshafts work in this episode.

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Could anti-lock brakes detect a flat tire? Mar 20, 2015

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By using a computer to monitor the rotation of the car's wheels, an anti-lock braking system helps drivers avoid skids. Could this computer also monitor flat tires? Check out this HowStuffWorks podcast to learn more about brake systems.

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Why are traffic lights being replaced with LEDs? Mar 18, 2015

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Across the country, incandescent traffic lights are being replaced with LED arrays. Check out this podcast from HowStuffWorks to learn more about the advantages of LED traffic lights.

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