Brainstuff
BrainStuff
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How does a pressurized airplane cabin work?
How does a pressurized airplane cabin work -- more importantly, ...
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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Can people really build missiles from scratch?
In the film Salt, Angelina Jolie's character creates a missile ...
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 do artificial sweeteners work?
At many restaurants, a little container on the table will ...
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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Is it possible to turn coal into oil?
As the demand for dwindling oil supplies rises, scientists across ...
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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Why do 3D movies cause headaches?
Although 3-dimensional movies have become increasingly popular, numerous viewers have ...
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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Why do human beings have eyebrows?
Eyebrows are prominent human features, but what purpose do they ...
Eyebrows are prominent human features, but what purpose do they serve? Scientists think they help keep stuff out of our eyes and aid in nonverbal communication, among other things. Learn more about eyebrows in this episode.
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How do thirty pounds of air in your tires hold up two tons of car?
Cars are heavy machines, so how can a few small, ...
Cars are heavy machines, so how can a few small, pressurized tires support their weight? Marshall Brain explains how tire pressure and contact patches work in this episode.
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Do you have a hidden savant inside your brain?
avant capabilities seem extraordinary, but what if they aren't? What ...
avant capabilities seem extraordinary, but what if they aren't? What if we all have amazing talents embedded in our brains? In this episode, Marshall discusses different techniques that have revealed savant-like qualities in ordinary people.
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What is superconductivity?
Superconductive materials have no electrical resistance, but why is superconductivity ...
Superconductive materials have no electrical resistance, but why is superconductivity a big deal? Marshall Brain explains the potential benefits and implications of superconductive materials, as well as how they work, in this episode.
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What is a digital signature?
A digital signature is a way to authenticate electronic documents. ...
A digital signature is a way to authenticate electronic documents. Find out what 'authentic' means in this context -- and how encryption is involved in the authentication process -- in this episode.
