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  • HD

    How Maple Syrup Works

    The clear, thin sap of Maple trees must be boiled ...

    The clear, thin sap of Maple trees must be boiled down to create maple syrup -- it takes about 30 to 40 gallons of sap to create one gallon of syrup. Check out this HowStuffWorks podcast to learn more about Maple syrup.

    Jul 16, 2008 Read more
  • HD

    How Glowing Watch Hands Work

    In many watches, phosphor is mixed with a radioactive element ...

    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.

    Jul 14, 2008 Read more
  • HD

    How Uninterruptible Power Supplies Work

    An uninterruptible power supply protects computers against surges, spikes, sags, ...

    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.

    Jul 14, 2008 Read more
  • HD

    How the Corvette ZR1 Works

    The 2009 Corvette ZR1 combines several technical innovations to produce ...

    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.

    Jul 14, 2008 Read more
  • HD

    How Gas Pumps Work

    Next time you're filling up your tank at a gas ...

    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.

    Jul 14, 2008 Read more
  • HD

    Why the Sky is Blue?

    As sunlight passes through the atmosphere, particles in the air ...

    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.

    Jul 14, 2008 Read more
  • HD

    How Radiation Works

    Although most people are frightened by radiation, the truth is ...

    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.

    Jul 14, 2008 Read more
  • HD

    What is the Difference Between a Carat and a Karat?

    Carats are used for diamonds, while karats are used for ...

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

    Jul 14, 2008 Read more
  • HD

    How Perceiving Earth as a Sphere Works

    Is there any way that people could know the world ...

    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.

    Jul 14, 2008 Read more
  • HD

    How Flatulance Works

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

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

    Jul 14, 2008 Read more
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