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How Multitasking Works

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You may think you're skilled at 'multitasking,' but chances are you aren't working on two things at the same time. Learn more at HowStuffWorks.

They stick around long after death and compete with the likes of Dracula, Frankenstein's monster and the Wolfman as one of the great figures of classic horror movies. Are you brave enough to unravel the history of these real-life, tangible ghosts?

How Mustard Gas Works

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Mustard gas is a chemical warfare agent developed during World War I. Learn how mustard gas affected soldiers and armies used mustard gas.

How NASA Planetary Protection Works

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What if your job were to protect life in the galaxy at all costs? Read about NASA's Planetary Protection program at HowStuffWorks.

How NASA Works

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When most people think of NASA, they probably think of astronauts and the Kennedy Space Center. But there's a whole lot more to this 60-year-old organization.

How NORAD Works

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NORAD is a military operation that is jointly run by the United States and Canada. Learn about NORAD and the unique location for the NORAD headquarters.

How Nanotechnology Works

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Nanotechnology is so new, no one is really sure what will come of it. Even so, predictions range from the ability to reproduce things like diamonds and food to the world being devoured by self-replicating nanorobots.

How Nanowires Work

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Nanowires are incredibly thin structures that have an incredible length-to-width ratio. Learn about nanowires and how nanowires are created.

How Napalm Works

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Napalm is a fiery tactical weapon that can stick to targets like no other incendiary weapon. Learn how napalm is used in war and who has used it.

How Napoleon's Arc de Triomphe Became a Symbol of Paris

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The Arc de Triomphe is one of the most iconic and enduring symbols of the city of Paris, France. But why did Napoleon commission it?