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How Electricity Works
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Electricity surrounds us and can be used thousands of different ways. Learn about the basics of electricity, from generators and electrical circuits to voltage and currents.
How Uranium Mining Works
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Thanks to our voracious appetite for energy, the element long linked with nuclear weapons is taking on a new role. Where does the hunt begin for uranium?
How a Nuclear Reactor Works
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Over the years, nuclear reactors have been viewed as both a miracle and a menace. How does a nuclear reactor do its job? And what happens when something goes wrong?
10 Homebuilt Tech Tools for the Developing World
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Homebuilt tech tools and DIY technologies can greatly improve people's lives. Learn about 10 DIY homebuilt tech tools for the developing world.
When Were the Twin Towers Built?
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The twin towers of the World Trade Center were true originals -- their history is one of innovation, persistence and grand ideas.
HowStuffWorks Newsletter Quiz
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If you took one of our recent newsletter quizzes, you've come to the right place for the answers.