BrainStuff

Latest Episodes:

How is olive oil made? Oct 14, 2015

Show notes

People across the planet love olive oil, and it's not hard to see why: This tasty liquid lends flavor to hundreds of dishes, and it's been used for thousands of years. But how does it get from the tree to the bottle? Tune in to find out.

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Why do 3D movies cause headaches? Oct 12, 2015

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Although 3-dimensional movies have become increasingly popular, numerous viewers have complained of headaches while watching these films. Why? Tune in as HowStuffWorks.com founder Marshall Brain breaks down the science behind 3D films.

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How Helium Works Oct 09, 2015

Show notes

The helium used in balloons is created by uranium interacting with natural gas. Learn more about helium and uranium in this HowStuffWorks podcast.

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How Subprime Loans Work Oct 07, 2015

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Subprime loans are made to borrowers who do not qualify for the best market interest rates. Learn more about subprime loans in this HowStuffWorks podcast.

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How Night Vision Works Oct 05, 2015

Show notes

Although the human eye is able to adapt to wildly different environments, it takes a certain amount of time to adjust to sudden changes in light. Learn more about the chemicals powering the human eye in this HowStuffWorks podcast.

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How Baking Powder Works Oct 02, 2015

Show notes

Baking powder is made of three components -- an acid, a base, and a filler. Check out this HowStuffWorks podcast to learn more about baking powder.

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How Atomic Clocks Work Sep 30, 2015

Show notes

Unlike more conventional timepieces, atomic clocks use the resonant frequency of atoms to measure the passage of time. Learn more about atomic clocks in this Brainstuff podcast.

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How Air Force One Works Sep 28, 2015

Show notes

Air Force One is gigantic, but how does it work? This is one of our editors' favorite episodes, and it's no surprise why: Listen in for a brief, detailed look at the interior of Air Force One.

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What causes the smell after rain? Sep 11, 2015

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The smell of rain is often linked with spring, and it's been alluded to in poems, songs and stories for centuries. But what exactly causes this distinctive smell? Tune in and find out.

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How do Pop Rocks candy work? Sep 09, 2015

Show notes

Hard candy (like a lollypop or a Jolly Rancher) is made from sugar, corn syrup, water and flavoring. Check out our HowStuffWorks article to learn how conventional candy is combined with carbon dioxide to produce Pop Rocks.

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