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10 Disadvantages of Biofuels
auto.howstuffworks.com/fuel-efficiency/biofuels/10-disadvantages-of-biofuels.htm
Biofuels are hot now, but integrating them into our fuel use habits could be costly. Read more about 10 disadvantages of biofuels.
10 Weirdest Failed Constitutional Amendments
people.howstuffworks.com/10-weirdest-failed-constitutional-amendments.htm
Think you have an original idea for a Constitutional amendment? Are you sure it hasn't been brought up one of the other 11,000 times?
10 Worst Adaptations in the Animal Kingdom
science.howstuffworks.com/life/evolution/10-worst-animal-adaptations.htm
Humans can certainly claim some of these, but sloths, giraffes and pandas wanted a piece of the action, too. The hyena adaptation, however, may just blow your mind.
10 Scientifically Sound Weather Superstitions
Ever hear that saying that a cow lies down when rain is coming? This superstition may not be as udderly ridiculous as you think.
10 Unidentified Sounds That Scientists Are Seriously Looking Into
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/10-unidentified-sounds.htm
"Stop, what's that sound?" Doesn't it creep you out when you don't know? There are lots of sounds out there that baffle even scientists.
10 Grocery Store Etiquette Rules
people.howstuffworks.com/10-grocery-store-etiquette-rules.htm
By following grocery etiquette guidelines, you can keep your shopping trip efficient and free of drama. See 10 grocery etiquette rules to get started.
10 of History's Happiest Accidents
history.howstuffworks.com/historical-events/10-history-happiest-accidents.htm
Where would we be without the accidental discoveries of beer, penicillin or Popsicles? Here is HowStuffWorks' list of history's happiest accidents.
When Were the Twin Towers Built?
science.howstuffworks.com/engineering/structural/wtc.htm
The twin towers of the World Trade Center were true originals -- their history is one of innovation, persistence and grand ideas.
How MMORPGs Work
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MMORPGs, or massively multiplayer online games, allow many people to compete in an online environment. Learn more about MMORPGs and MMORPG worlds.
How Narcissism Works
health.howstuffworks.com/mental-health/mental-disorders/narcissism.htm
Are we becoming raging narcissists? Probably not, but that doesn't mean your selfie habit is healthy. Learn more about narcissism at HowStuffWorks.