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What's the world's smallest gun?
science.howstuffworks.com/smallest-gun-in-world.htm
The world's smallest gun isn't just the smallest gun in the world: It's a debate topic among law agencies and collectors. Read about the world's smallest gun.
Can You Guess Which Countries These Breathtaking Landscapes Are From?
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Where in the world can you marvel at Earth's biggest canyon, swim in lakes the color of bubble gum, or stroll through endless stretches of red sand? Take our quiz to see if you can match these breathtaking landscapes to the correct country!
How Super Truck Racing Works
auto.howstuffworks.com/auto-racing/motorsports/super-truck-racing.htm
Super truck racing is a popular sport in Europe, though it hasn't caught on as well in the U.S. Read all about super truck racing in this article.
GLOBE Wants You as a Citizen Scientist
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Citizen science allows virtually anyone to collect and analyze date about the Earth. GLOBE wants you to become its citizen scientist.
How Marijuana Works
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Marijuana isn't just a recreational drug for hippies and philosophy majors -- its psychoactive history ranges from Egyptian mummies to modern U.S. politics. What's the big deal about this leafy, green plant?
The Bootstrap Myth: Climbing the Economic Ladder Takes More Than Hard Work
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Succeeding in the U.S. isn't just about effort. Learn how the 'bootstrap myth' oversimplifies economic mobility at HowStuffWorks Now.
Did NASA Win the Space Race?
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The space race between NASA and the Soviet Union began with the Soviet's successful Sputnik I. Find out what played out during the space race.
How Fuel Cells Work
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A hydrogen fuel cell is an electrochemical energy conversion device. Learn why governments are pouring money into fuel cell research.
Can You Pass This Mexican History Quiz?
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Mexico is a colorful nation with a complicated and violent history. The region has seen the rise and fall of empires and political dynasties spanning centuries. What do you really know about Mexican history?
Only History Fanatics Can Name All 50 Famous Historic Figures
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These famous people in history have inspired millions by their actions, beliefs or artistic contributions. Do you think you know your history? Take this quiz and see how many of these famous people you can name from an image.