BrainStuff

Latest Episodes:

How do Voyager 1 and 2 transmit messages from far away? Jun 27, 2012

Show notes

Spacecraft Voyager 1 and Voyager 2 transmit images of space and its contents from great distances, but how? Learn more about the technology that allows them to send radio messages from far, far away in this episode of BrainStuff.

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Do Power Balance Wristbands really work? Jun 22, 2012

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Do Power Balance Wristbands really work? Find out in this BrainStuff podcast by Marshall Brain.

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What's the most efficient way to mow your yard? Jun 13, 2012

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There's more than one way to mow a yard, but which is the most efficient? Tune in to this episode of BrainStuff to find out.

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How does disk defragmentation work? Jun 06, 2012

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The term 'disk defrag' usually refers to the Windows utility known as the disk defragmenter. But what exactly is this thing, and how does it work? Tune in as Marshall Brain explains disk defragmentation in this podcast.

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How do space mirrors work? Jun 01, 2012

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Mirrors placed in space could deflect excessive sunlight and combat global warming trends. Find out more about space mirrors in this podcast from HowStuffWorks.com.

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Why do newspapers turn yellow over time? May 21, 2012

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Newspapers turn yellow over time because they contain lignin, a substance in wood that oxidates when exposed to air and light. Learn more about lignin and paper processing in this episode of BrainStuff.

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Why do eggs turn hard when you boil them? May 11, 2012

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Eggs are rich in protein, and this protein causes eggs to turn hard when they're boiled - but how does it actually work? Tune in as Marshall Brain breaks down the science behind hard-boiled eggs.

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How do you add a USB device if you've run out of ports? Apr 27, 2012

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Desktop computers and laptops only have so many USB ports, so what do you do when you want to plug in more USB devices and they're all full? You buy a USB hub. Find out how these hubs work, and which kind you should get, in this episode of BrainStuff.

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What is an autograph worth? Apr 23, 2012

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An autograph is a famous person's signature, but what determines how valuable it is? Marshall Brain discusses the relative value of autographs -- and what you can do to increase the value of your own signature.

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What are electrolytes? Apr 20, 2012

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What are electrolytes, and why do athletes and sick kids need them? Marshall Brain explains how ions and electrolytes work in your body in this episode.

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