BrainStuff

When water comes in contact with the complex molecules that make up cotton and nylon, it causes a different action in each material -- but why? Listen in as Marshall Brain breaks down the science behind water absorption in this podcast.

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There are many kinds of motion sensors, from active to passive systems. Get the scoop on how myriad motion sensing systems work in this podcast from HowStuffWorks.com.

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What makes a "smart" house so smart? These high-tech houses intelligently use resources and are responsive to the needs and habits of their occupants. Tune in to learn more.

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As the demand for dwindling oil supplies rises, scientists across the world search for new ways to generate energy. In this episode, Marshall looks at a new attempt to stave off the looming fossil fuel crisis: Turning coal into oil. Tune in to learn more.

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At many restaurants, a little container on the table will have regular sugar in addition to artificial sweeteners. But what exactly are artificial sweeteners, and how do they differ in comparison to regular sugar? Listen in to find out.

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In the film Salt, Angelina Jolie's character creates a missile from handy household ingredients -- but could this happen in real life? Tune in as Marshall breaks down the science behind improvised explosives.

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How does a pressurized airplane cabin work -- more importantly, what happens when the pressure fails? Join Marshall Brain as he breaks down the science behind cabin pressurization.

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If you go outdoors during the right time of year, you may be bitten by chiggers. But what are these creatures, and why do they attack unsuspecting humans? Listen in as Marshall Brain breaks down the life cycle of the chigger -- and how it can affect you.

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Anyone who watched the Master's tournament knows that Rory McElroy famously choked under pressure -- but what exactly happened? In this podcast, Marshall explores the science behind choking in stressful or intimidating situations

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Laminated safety glass has been around since the 1920s. Find out how safety glass is made, how it works and what it's used for in this episode of BrainStuff.

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