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How Smartphones Work

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Smartphones blur the line between cell phones and PDAs. Learn the details of smartphones, read cell phones and PDA reviews and see our buying guide.

Coalition troops have been surviving mainly on MREs (Meals Ready to Eat) for most of Operation Iraqi Freedom. Learn what these portable, adaptable and absolutely essential pieces of military technology are all about.

How Currency Works

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Currency is a complex aspect of human civilization. Find out all about these symbols of financial value.

How Improv Everywhere Works

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Improv Everywhere is many things: A stage for the stageless; a script for struggling actors; an attempt to get New Yorkers to remove their earbuds -- which is not as easy as it might seem.

Battling Blockbusters: Fighting Against Superman

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Superman is the Man of Steel, but have you ever wondered who would win if he squared off against a Jedi knight? Learn about fighting against Superman.

How Shaving Works

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Shaving is a ritual that a large percentage of men partake in on a daily basis. Find out how and why shaving is so important.

How Centropolis FX Creates Visual Effects

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A movie like "The Patriot" contains an amazing range of visual effects -- Centropolis FX created everything from new towns to virtual soldiers for this movie! Go behind-the-scenes and learn exactly how CFX makes the imaginary look completely real!

How the ACLU Works

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The ACLU has defended Americans' civil liberties for more than 80 years. Learn about the ACLU, its accomplishments and its defense of civil liberties.