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10 Common Hospital-acquired Infections
health.howstuffworks.com/medicine/healthcare/10-common-hospital-acquired-infections.htm
Hospital-acquired infections occur because a hospital puts many people with infections in one place. Learn more about hospital-acquired infections.
What Is the Capricorn Birthstone? Discover Its Meaning and Power
entertainment.howstuffworks.com/horoscopes-astrology/capricorn-birthstone.htm
The Capricorn birthstone holds a mystical power most jewelers won't tell you about. Wearing this gem could transform your career trajectory and relationships in ways you never imagined possible.
Why are eels slippery?
animals.howstuffworks.com/marine-life/eels-slippery.htm
Eel skin is slippery for a reason. The slime layer helps it to slither through tight spaces and protects it from parasites. Learn why eels are slippery.
Are stupid people happier?
science.howstuffworks.com/life/inside-the-mind/emotions/stupid-people-happier.htm
Ignorance is bliss. But what if you're more than just unaware? If you are dumb as a doornail, flat-out foolish or dim-witted, are you happier than the genius next door?
Why do cougars scream?
animals.howstuffworks.com/mammals/cougar-scream.htm
Cougars scream during mating season to attract the opposite sex. Learn how cougars scream and why humans don't hear these cougar screams too often.
Why are sloths so slow?
animals.howstuffworks.com/mammals/sloths-slow.htm
Sloths move slowly mostly because of their vegetarian diet. Learn why sloths move slowly and how their anatomy supports such lethargy.
Why Is the Sky Blue?
science.howstuffworks.com/nature/climate-weather/atmospheric/sky.htm
We've all probably looked up and wondered why the sky is blue instead of, say, brown. The sky is blue because of the way Earth's atmosphere scatters light from the sun.
How can I have an out-of-body experience?
science.howstuffworks.com/science-vs-myth/extrasensory-perceptions/out-of-body-experience.htm
Out-of-body experiences (OBEs) are most often associated with sick or injured people, but scientists recently produced these experiences in healthy people. Learn how virtual reality can scramble your point of view.
T-62 Main Battle Tank
science.howstuffworks.com/t-62-main-battle-tank.htm
The T-62 Main Battle Tank was the second generation of Soviet MBTs, based on the T-54/T-55. Learn about the T-62 Main Battle Tank at HowStuffWorks.
What if we covered a city in a giant glass dome?
science.howstuffworks.com/engineering/structural/covered-city.htm
Domed cities would provide the same temperature year-round, no rain or snow, and the ability to go outside without worrying about a sunburn. Have they been tried before, and what about the people who enjoy their seasons?