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The Ultimate Caffeine Quiz
play.howstuffworks.com/quiz/caffeine-quiz
It wakes you up, gets you going, and may even cure your headache. But how much do you really know about caffeine?
What if I never cut my hair?
lifestyle.howstuffworks.com/style/hairstyles/never-cut-my-hair.htm
If I never cut my hair would it keep growing forever? Find out what would happen if you never cut your hair and how long your hair would grow.
Vector M12
auto.howstuffworks.com/vector-m12.htm
Started as a 1970s exotic car, the Vector finally came to life under the hands of Lamborghini's parent company. Learn more about Vector sports cars.
If nature abhors a vacuum, then why doesn't the vacuum of space suck away all of the Earth's atmosphere?
science.howstuffworks.com/question200.htm
If "nature abhors a vacuum," then why doesn't the vacuum of space suck away all of the Earth's atmosphere?
Granville Brothers Gee Bee Super Sportster R-1
The Granville Brothers Gee Bee Super Sportster R-1 classic airplane was a very sophisticated aircraft. View the airplane's specifications here.
1948 Harley-Davidson S-125
auto.howstuffworks.com/1948-harley-davidson-s-125.htm
The Harley-Davidson S-125 motorcycle was a popular civilian bike in the wake of World War II. See pictures and learn more about the Harley S-125.
1953 Indian Chief
auto.howstuffworks.com/1953-indian-chief.htm
The 1953 Indian Chief motorcycle was the final Indian model and is highly collectible. Check out pictures and information on the 1953 Indian Chief.
1985 Yamaha V-Max
auto.howstuffworks.com/1985-yamaha-v-max.htm
The 1985 Yamaha V-Max motorcycle was unbeatable in a drag race by any other street bike of its day. See pictures and learn about the Yamaha V-Max.
1969 Dodge Charger
auto.howstuffworks.com/1969-dodge-charger.htm
The 1969 Dodge Charger, with its hemi V-8 engine, was one of the most popular muscle cars of its day. See pictures of this powerful machine.
What Is the Most Expensive Car in the World?
auto.howstuffworks.com/most-expensive-car.htm
Haven't you ever wondered? It depends on how you look at it and we have two answers - the highest sticker price and the highest price ever paid. Both are stunning.