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What if there were no sharks?
animals.howstuffworks.com/fish/sharks/what-if-there-were-no-sharks.htm
We may be fascinated by sharks, but they can cause trouble for other species. Learn what Earth would be like if there were no sharks at HowStuffWorks.
Is there a speed of darkness?
science.howstuffworks.com/dictionary/astronomy-terms/speed-of-darkness.htm
Everyone knows that nothing travels faster than the speed of light, but how does the speed of dark compare? Read on to find out!
Will pulling out a gray hair cause 10 more to grow in its place?
people.howstuffworks.com/will-pulling-out-gray-hair-cause-10-more-to-grow-in-its-place.htm
People tend to be reluctant to love their gray hair, but plucking isn't advised. Learn why you shouldn't pull your gray hair out at HowStuffWorks.
Why aren't 3-D glasses red and blue anymore?
entertainment.howstuffworks.com/why-arent-3d-glasses-red-and-blue.htm
Remember when 3-D glasses were red and blue lenses? They've gotten a major upgrade. Find out why 3-D glasses aren't red and blue anymore.
Which Military Aircraft Are You Meant to Fly?
play.howstuffworks.com/quiz/which-military-aircraft-are-you-meant-fly
You yearn to fly high in a jumpsuit! That could mean many things! Do you want to know what equipment you should fly in the U.S. military? Take this quiz to find out!
How Do Hand Warmers Work? A Scientific Look
science.howstuffworks.com/disposable-hand-warmers.htm
Hand warmers work through simple chemistry. A massively sped-up version of oxidation (the chemical reaction that makes rust) is to thank.
Uses for Vinegar: Home Remedies
Vinegar has a long history of being the prescribed solution to a number of ailments, including scurvy, cholera, tonsillitis, and diphtheria. Learn more about the role vinegar plays with home remedies.
3 Types of Trees You'll Find All Over the Planet
science.howstuffworks.com/life/botany/types-of-trees.htm
Trees are one of nature’s most incredible designs, providing oxygen, shelter and even maple syrup! From towering evergreens to small flowering plants, the diversity of trees is truly mind-blowing.
Husky vs. Wolf: Look-alike Doesn't Mean Act-alike
animals.howstuffworks.com/animal-facts/husky-vs-wolf.htm
If you spot a Siberian husky trotting through the snow, you might think you're seeing a wolf. That husky vs. wolf confusion is a common, and while huskies and wolves share a common ancestor, they're very different animals.
What's the Hardest Math Problem in the World? Try These 9
science.howstuffworks.com/math-concepts/hardest-math-problem-in-the-world.htm
Mathematics is filled with complex challenges, but the hardest math problem in the world isn’t just a difficult question on a school test: It’s one that defies centuries of logic, calculation, and creativity.