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12 Big Cases of Revenge

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The concept of revenge predates legal history. But sometimes the need for vengeance can kick into overdrive - as in these 12 infamous acts of revenge.

10 Times Humanity Found the Answer (and Then Forgot)

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Could humanity be even farther ahead if we hadn't forgotten what we'd learned centuries ago? Learn about 10 times we forgot answers at HowStuffWorks.

10 Science Questions You Should Really Know How to Answer

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Why is the sky blue? What's relativity all about? If you're thinking, "something to do with light and physics and stuff," we have some short explanations for you.

10 Cool Tools

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Unlike the hammers and chisels collecting cobwebs in garages everywhere, these high-tech tools have worked on everything from revolving water slides to boxing robots.

How Light Works

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Some of the brightest minds in history have focused their intellects on the subject of light. Einstein even tried to imagine riding on a beam of light. We won't get that crazy, but we will shine a light on everything scientists have found so far.

How Nuclear Submarines Work

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Nuclear submarines are powered by nuclear reactors and may carry nuclear weapons. Read about nuclear submarines and how they changed the world's oceans forever.

How Sci-fi Doesn't Work

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Learn how sci-fi doesn't work in some popular movies and TV shows.

How Java Works

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Java is one of the most basic programming languages, and one of the most popular. Check out this step-by-step intro to Java and the world of computer programming.

How the International Space Station Works

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In 1984, President Ronald Reagan had a vision for a permanently inhabited space station. Today that vision is a reality we know as the International Space Station.

28 Industrial Revolution Inventions That Shaped Our World

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Many inventions during the Industrial Revolution caused Europeans and Americans to move from an agricultural economy to an industrial one and changed the world forever. What were the top 10?

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