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How Ultrasound Works
science.howstuffworks.com/ultrasound.htm
Ultrasound lets us peek into the human body to see everything from heart valves to a moving baby. But how do sound waves give us a picture?
Understanding Auto Parts
auto.howstuffworks.com/car-parts-roundup.htm
As illustrated by the hundreds of individual parts for sale at your local Pep Boys Autozone or Napa Auto Parts it takes a lot of machinery to make cars work. Learn about the key parts.
How to Install Carpeting
home.howstuffworks.com/home-improvement/home-diy/flooring/how-to-install-carpeting.htm
Install carpet yourself with a little planning. Learn what tools and materials you need, then follow these step-by-step instructions.
10 Incredible Dragons We'd Like to Meet (or Run From)
science.howstuffworks.com/science-vs-myth/strange-creatures/10-incredible-dragons.htm
Some dragons seem like they'd be fascinating dinner guests, but others might see you as the main course. Here are our top 10 of both types.
5 Most Dangerous Recreational Sports (with the most ER visits)
health.howstuffworks.com/medicine/5-most-dangerous-recreational-sports.htm
There are some dangerous recreational sports that can send you to the ER. Do you know which ones? See our list of the five most dangerous recreational sports.
Top 5 Tanning Myths
health.howstuffworks.com/skin-care/beauty/sun-care/5-tanning-myths.htm
Do you know the difference between tanning myths and facts about tanning? Take a look at our list of the top 5 tanning myths and find out.
How do automakers use independent research?
How do automakers use independent research? Visit HowStuffWorks to learn how automakers use independent research.
How Well Do You Know the Rules of Rugby?
play.howstuffworks.com/quiz/how-well-do-you-know-the-rules-rugby
Do you consider yourself a sports wizard? We're talking down to knowing the differences between rugby and American football. Still with us? Then take this quiz and put your knowledge to the test!
Match the Song to Its Movie
play.howstuffworks.com/quiz/match-the-song-to-its-movie
Are you a movie buff with a vivid musical memory? Do you tend to recall movies by the tunes you heard in them? Take this quiz and find out just how many movies you can identify by their song titles alone!
Can You Name All 40 of These Mammals?
play.howstuffworks.com/quiz/can-you-name-all-40-of-these-mammals
Calling all animal lovers! Do you know your mammals like a zoologist does? They're not all as cuddly as cats and dogs, but they're warm-blooded and hairy - even the dolphins! Prove your animal awareness with this merry mammal quiz!