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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.
How Many Bird Species Can You Identify?
play.howstuffworks.com/quiz/how-many-bird-species-can-you-identify
Do you think you're an expert when it comes to birds? We promise this bird quiz will keep you emu-sed since everybody's been raven about it. Don't worry if you get stuck on any of the questions. You can always tweet a friend for help!
7 Famous Folks Who Were Also Doctors
history.howstuffworks.com/historical-figures/famous-doctors.htm
These folks abandoned their medical careers to get involved in other lines of work and make their names.
How Hot Wheels Work
entertainment.howstuffworks.com/hot-wheels.htm
Hot Wheels are still around, and still popular with kids (and lots of adults, too). Learn all about these tiny, scale-model cars at HowStuffWorks.
Can You Guess the Book Title From an Anagram of the Letters?
play.howstuffworks.com/quiz/can-you-guess-the-book-title-an-anagram-the-letters
Deciphering an anagram is similar to the feeling that you get when you're reading code. You get that excited, top-secret rush, like from a Dan Brown novel. Can you figure out these book title anagrams? We promise that "1984" does not make the list.
How Thoroughbred Horses Work
animals.howstuffworks.com/mammals/thoroughbred-horse.htm
Thoroughbred horses aren't just pretty; they're the end result of centuries of breeding and record-keeping. Learn about the history and purpose of thoroughbred horses at HowStuffWorks.
How Newton's Cradles Work
science.howstuffworks.com/innovation/inventions/newtons-cradle.htm
Five metallic balls on slender threads sit side by side. As one on the end hits the rest, the one on the opposite end rises and falls. Why don't the balls in the middle move? It's complicated.
What Car Should I Buy?
play.howstuffworks.com/quiz/what-car-should-i-buy
Have you been shopping for a fresh new ride to replace your jalopy but are uncertain what to buy? Instead of wasting your time scouring sites like Carvana, why don't you take our quiz and let us predict what new car you should buy! Who knows, you might be a Camry person after all!
What Makes Virgo Men So Unique? Zodiac Insights
entertainment.howstuffworks.com/horoscopes-astrology/virgo-men.htm
Explore Virgo men's traits, compatibility, and relationship dynamics. Learn what makes a Virgo man unique in love and if he's the right zodiac match for you.
How Matchmakers Work
people.howstuffworks.com/matchmaker.htm
Matchmakers have paired up couples for centuries, and it doesn't seem as though their market has slackened. What does the modern matchmaker do?