BrainStuff

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How Glowing Watch Hands Work Jul 14, 2008

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In many watches, phosphor is mixed with a radioactive element that continously charges the phosphor, powering glowing watch hands. Learn more about glowing watch hands in this HowStuffWorks podcast.

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How Uninterruptible Power Supplies Work Jul 14, 2008

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An uninterruptible power supply protects computers against surges, spikes, sags, and total power failure. Check out this HowStuffWorks podcast to learn more about uninterruptible power supplies.

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How the Corvette ZR1 Works Jul 14, 2008

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The 2009 Corvette ZR1 combines several technical innovations to produce a turbo-charged, eight-cylinder engine. Learn more about the Corvette ZR1 in this HowStuffWorks podcast.

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How gas pumps work Jul 14, 2008

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Next time you're filling up your tank at a gas station, ask yourself this: how does the nozzle know when the tank is full? Learn more about gas pumps in this HowStuffWorks podcast.

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Why the Sky is Blue? Jul 14, 2008

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As sunlight passes through the atmosphere, particles in the air scatter blue light more efficiently than any other color in the light spectrum, creating a blue sky. Learn more about the sky and light in this Brainstuff podcast.

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How Radiation Works Jul 14, 2008

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Although most people are frightened by radiation, the truth is we are irradiated every day, both from cosmic rays in the sky, and radioactive elements in the ground. Learn more about radiation in this HowStuffWorks podcast.

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What is the Difference Between a Carat and a Karat? Jul 14, 2008

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Carats are used for diamonds, while karats are used for gold. Learn more about the difference between carats and karats in this HowStuffWorks podcast.

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How Perceiving Earth as a Sphere Works Jul 14, 2008

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Is there any way that people could know the world is sphere while standing on the earth? Learn more about perceiving earth as a sphere in this HowStuffWorks podcast.

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How Flatulance Works Jul 14, 2008

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Learn about the causes of gas (flatulence) in this podcast from Marshall Brain.

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How Leap Years Work Jul 14, 2008

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A normal calendar years is 365 days long, but the earth actually takes 365.2422 days to completely orbit the sun. Learn more about leap years in this HowStuffWorks podcast.

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