BrainStuff

Latest Episodes:

Is there a way to make my sunglasses scratch-resistant? Dec 06, 2010

Show notes

Sunglasses have various special coatings: Some are reflective, while others are scratch-resistant. In this episode, Marshall explains how these different coatings work.

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how does a direct-injection 2-stroke engine work? Nov 22, 2010

Show notes

In a previous episode, Marshall explained how 4-stroke, direct-injection engines work; In this one, he takes a look at 2-stroke engines that utilize direct injection technology.

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How did instant cameras work? Oct 15, 2010

Show notes

Instant cameras made it possible to see a photograph almost immediately after you'd taken it. But how? In this episode, Marshall explains the chemical processes behind regular and instant photographic film.

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What is a Nor'easter? Sep 24, 2010

Show notes

Nor'easters are storm systems that frequently occur in the eastern United States during winter. In this episode, Marshall explains where Nor'easters get their name, how they work and why some Nor'easters are more powerful than others.

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How do they backlight LCD screens? Aug 23, 2010

Show notes

In this episode, Marshall explains the two technologies that are used to backlight LCD panels.

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What exactly is jello made from? Jul 21, 2010

Show notes

Jello is tasty, colorful and fun to eat, but what's in it? One of its ingredients, gelatin, comes from animals. Marshall Brain breaks down the chemistry of jello and gelatin in this episode.

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What's the best way to get Twitter or Facebook followers? May 26, 2010

Show notes

In this episode, Marshall Brain launches the first of a series of experiments with social media. Tune in to learn more about the new BrainStuff Twitter and Facebook accounts and Marshall's social media experiments.

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When I pay for groceries by check, where does that check go? May 14, 2010

Show notes

When you write a check to purchase goods and services, it passes through the hands of several banks before the process is complete. Marshall explains how checks are processed through intermediary banks in this episode.

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Is it harmful to breathe 100 percent oxygen? May 03, 2010

Show notes

Oxygen is a necessary component of the air we breathe; but in its pure form, it can be hazardous to one's health. Marshall Brain explains how breathing pure oxygen harms the human body in this episode.

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how do I know if my catalytic converter has failed? Apr 09, 2010

Show notes

An automobile's catalytic converter uses a catalyst to convert harmful exhaust fumes into harmless ones. Find out what happens when your catalytic converter stops working properly -- and how you can tell -- in this episode.

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