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10 Mad Royals in History
history.howstuffworks.com/historical-figures/10-mad-royals.htm
Insanity on the throne was more common than you might think. Here are 10 of the maddest royals in history.
10 Amazing Car Security Systems
Today's modern car security systems run the gamut. Learn about 10 amazing car security systems to protect your vehicle.
'Unsolved' Mysteries, Solved: 10 Times We Answered History's Biggest Questions
Was Anna Anderson really Anastasia Romanov? Does the Bermuda Triangle really exist? Wonder no more: We have the answers to these and other formerly unsolved mysteries.
10 Times It Has Rained Something Other Than Water
Frogs! Fish! Birds! A surprising number of things have rained down from the sky besides water. But how?
How Gold Works
science.howstuffworks.com/gold.htm
We love it. We wear it glittering around our necks and sparkling at our ears, wrists and feet. We pass it down to our children and hoard it in secret stashes. Why is this precious metal so prized?
How That Creamy Chocolate Is Made
science.howstuffworks.com/innovation/edible-innovations/chocolate.htm
Chocolate comes from the equatorial cacao tree's unassuming cocoa beans. Learn the steps from tree to table as cocoa beans become sumptuous chocolate.
How Uranium Mining Works
science.howstuffworks.com/uranium-mining.htm
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?
Top 10 Things That Women Invented
science.howstuffworks.com/innovation/inventions/10-things-that-women-invented.htm
By the end of the 20th century, female inventors held 10 percent of all patents, a disparity indicating the hurdles women faced in receiving credit for their ideas. The inventors on this list overcame those obstacles.
10 Recent Breakthroughs in Marine Biology
animals.howstuffworks.com/animal-facts/10-recent-breakthroughs-in-marine-biology.htm
Marine biology breakthroughs have helped us learn about the ocean's residents. Explore 10 of the coolest marine biology discoveries.
How Global Warming Works
science.howstuffworks.com/environmental/green-science/global-warming.htm
Global warming is becoming an increasingly important issue. Find out what causes global warming and learn how we can decrease the effects of global warming.