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How Tunnels Work

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Constructing a tunnel is one of the most complex challenges in the field of civil engineering. Learn about the basics behind tunnels.

How Stress Works

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Understanding stress requires you to learn the various types of stress and the different causes. Learn how stress affects you and how to relieve it.

How to Choose Clothes for a Child

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Knowing how to choose clothes for a child means balancing ease and comfort with price. Learn about diapering and how to buy baby clothes.

How Dogfighting Works

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Dogfighting is a $500 million industry and has been associated with famous rappers and athletes, such as Michael Vick. Read more about dogfighting.

How Meth Works

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Meth, or methamphetamine, is a stimulant that can leave users toothless and paranoid. So why do so many people go after that high? Learn what meth can do.

Imagine walking through a field and stumbling upon scads of corpses, all in various states of decomposition. It's not the setting for your next nightmare, but rather a very real discipline of forensic anthropology.

How Wetlands Work

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Wetlands act like sponges, soaking up extra water during floods. They filter water as it runs to our rivers and streams. Find out what else wetlands do.