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Cavities and Fillings 101

health.howstuffworks.com/wellness/oral-care/problems/cavity.htm

A fascinating article that describes how dental cavities and fillings work!

How the Physics of Football Works

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There's a reason why some passes miss their target, and others land right in the receiver's hands -- it's physics! Take a look at the game from a whole new angle.

How Quantum Suicide Works

science.howstuffworks.com/innovation/science-questions/quantum-suicide.htm

A man has a gun. But this is no ordinary man, and this is no ordinary gun. This isn't a setup for a sci-fi thriller. It's the premise for quantum suicide.

How Virtual Reality Military Applications Work

science.howstuffworks.com/virtual-military.htm

Virtual reality military applications include battlefield simulations and military vehicle simulations. Learn about virtual reality military applications.

Easy Volunteer Activities for Kids

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Easy volunteer activities will let kids have fun while giving back to the community. Read about easy volunteer activities for kids at HowStuffWorks.

How Organic Farming Works

science.howstuffworks.com/environmental/green-science/organic-farming.htm

Consumers are becoming more and more knowledgeable about food safety and their health. As a result, organic farming has entered the agriculture mainstream. But what methods must be used, and how is organic farming certified?

How Geisha Work

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The novel "Memoirs of a Geisha" depicts geisha in the World War II era -- but it's fiction. Find out how geisha fit into Japanese culture.

How Semantic Web Works

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The Semantic Web proposes to help computers 'read' and use the Web. Learn about the tools that could make the Web machine readable.

How Street Gangs Work

people.howstuffworks.com/street-gang.htm

According to a 2005 report by the Department of Justice, there are at least 21,500 gangs and more than 731,000 active gang members in the United States. Learn how and why street gangs form.

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