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Which of These Animals Does Not Belong With the Others?
play.howstuffworks.com/quiz/which-of-these-animals-does-not-belong-with-the-others
Millions of animals exist in the world. Reptiles, mammals, fish and insects all coexist with us. How are they alike? How are they different? Take our quiz, and see if you know the answers!
Does a smartphone raise your risk of identity theft?
money.howstuffworks.com/smartphone-raise-your-risk-identity-theft.htm
Does a smartphone raise your risk of identity theft? Learn why and how to protect yourself from HowStuffWorks.
How Air Curtains Work
home.howstuffworks.com/home-improvement/construction/green/air-curtains.htm
Is it possible for a stream of air to behave like a door? Surprisingly, yes. This door may not block out burglars, but it can certainly fight against cold winds, flying insects and pollutants.
Owning an Old House: Charming Love Affair or Expensive Money Pit?
home.howstuffworks.com/home-improvement/repair/owning-old-house.htm
Old houses have an undeniable charm, but there are inherent issues that can turn an older property into an emotional and financial nightmare for an owner. Knowing what to watch for can be the key.
Is Running Every Single Day Good for Your Body?
health.howstuffworks.com/wellness/diet-fitness/exercise/running-every-day.htm
Some say it's not good to run every single day without letting the body rest. But others take running streaks to another level.
Oak Ridge, Tennessee: America's Secret Atomic City
science.howstuffworks.com/oak-ridge-tennessee-secret-atomic-city.htm
The Manhattan Project built the city of Oak Ridge in rural Tennessee, where secret facilities produced uranium-235 for the atomic bomb.
What If We Ran Out of Minerals?
science.howstuffworks.com/science-vs-myth/what-if/what-if-ran-out-minerals.htm
If minerals make up so much of the Earth, why would we ever face shortages? The availability of the resources we use to create products often depends more on our priorities than the planet's supply.
Epidemiologists Are the 'Disease Detectives' Protecting Public Health
health.howstuffworks.com/medicine/healthcare/epidemiologists.htm
Who do you call when there's a new disease outbreak? An epidemiologist. These disease detectives investigate the who, what, why, when and where of epidemics worldwide.
Can You Pass This Difficult Cat Breed Identification Quiz?
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Are you well-versed in felinology, the study of cats? Do you think that you have what it takes to be the best in this pedigree of a quiz? Then get ready to put your knowledge of cat breeds to the ultimate test right now with this challenging quiz!
How Much Do You Really Know About Car Engines?
play.howstuffworks.com/quiz/how-much-do-you-really-know-about-car-engines
Vroom! Vroom! Modern car engines are a multitude of working parts, all operating in perfect harmony to enable us to drive to our destinations! But just what do you actually know about car engines? Car(e) to find out?