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How Nutrition Works

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Proper nutrition is the most important step towards good health in both the short and long term. Learn how to eat well and plan a healthy diet.

How Gene Pools Work

science.howstuffworks.com/life/genetic/gene-pool.htm

The physical you is a result of your DNA, and your DNA is part of the human gene pool. Find out what the "gene pool" really is and what happens when it shrinks.

X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal, thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones.

How Pickpockets Work

money.howstuffworks.com/pickpocket.htm

Pickpockets have been around about as long as currency. Learn about pickpocketing, common pickpocket techniques and how to protect against pickpockets.

How Terraforming Mars Will Work

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The thought of terraforming Mars is one of those ideas so outrageous that it just might work! Learn how it will work!

How Gears Work

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If a device has a motor, engine or spring, it probably has gears! But what do gears do, exactly, and how do they do it?

How Space Tourism Works

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The space tourism industry offers people a way to take the ultimate vacation. Learn about space tourism and find out how you can become a space tourist.

How Solar Sails Work

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What is a solar sail? How can you use sunlight to move a spacecraft in outer space? In this article, HowStuffWorks will show you how solar sail technology works, take an in-depth look at the Cosmos-1 mission and find out what solar-sails mean for future space travel.