BrainStuff

Latest Episodes:

How can I make artificial snow in my backyard? Jul 15, 2015

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If you live in a cold enough climate, you can make fake snow just like they do for ski resorts. In this episode, Marshall shares two techniques for creating artificial snow in your own backyard -- and what to do if you live in a warm climate.

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How is wire measured? Jul 13, 2015

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In the United States, wires are measured by diameter using a standard called AWG, or American Wire Gauge. Discover how the AWG system works -- and where it came from -- in this podcast from HowStuffWorks.com.

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Can water go bad? Jul 10, 2015

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Many people store water for emergencies -- but is it true that water sitting for too long will go bad? Listen in as Marshall Brain breaks down the science of water purification in this HowStuffWorks podcast.

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What do the ul marks on so many products mean? Jul 08, 2015

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UL stands for 'underwriters laboratories,' a safety testing organization -- but what exactly does this group do, and why do they do it? Tune in and learn more about the UL mark in this podcast from HowStuffWorks.

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What's the total amount of gold in the world? Jul 06, 2015

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Have you ever wondered how much gold the world has produced over time? How about platinum? Get the grand totals in this HowStuffWorks podcast.

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How do candles work? Jul 03, 2015

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Before there were light bulbs, candles made the world a brighter place. Discover the ingenious technology behind candles in this podcast from HowStuffWorks.com.

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What are frankincense and myrrh? Jul 01, 2015

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You might recognize frankincense and myrrh from the Biblical story of Jesus, but have you ever wondered exactly what they are? Tune in to get the skinny on frankincense and myrrh in this podcast from HowStuffWorks.com.

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How can an electric toothbrush recharge its batteries? Jun 29, 2015

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An electric toothbrush gets power from its base without the help of metal contacts. Find out how this sealed system works in the following podcast from HowStuffWorks.com.

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How Smoke Works Jun 26, 2015

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When you put a fresh piece of wood on a hot fire, volatile organic carbons in the wood evaporate, creating smoke. Learn more about smoke in this Brainstuff podcast.

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How X-Ray Machines Work Jun 24, 2015

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An X-ray machine is essentially a camera that uses x-rays to expose the film, instead of visible light. Learn more about x-ray machines in this HowStuffWorks podcast.

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