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The Lifeguard Knowledge Quiz
play.howstuffworks.com/quiz/the-lifeguard-knowledge-quiz
Lifeguards use a variety of techniques to save lives and scan for potential victims on a daily basis. In this quiz, we're testing you on various skills that will put you in the position of a lifeguard! Try this quiz now to see how well you do!
How Smartphones Work
electronics.howstuffworks.com/smartphone.htm
Smartphones blur the line between cell phones and PDAs. Learn the details of smartphones, read cell phones and PDA reviews and see our buying guide.
How Lawn Mowers Work
home.howstuffworks.com/lawn-mower.htm
Lawn mowers have been keeping yards trim for over 100 years. Learn all about lawn mowers, lawn mower history and more.
When Was It Invented? The Technology Timeline Quiz
play.howstuffworks.com/quiz/technology-timeline-quiz
Think you can pass our invention timeline quiz? Test your knowledge to see if you know how long these technologies have been around.
How do you keep a safe house safe?
people.howstuffworks.com/safe-house.htm
A safe house works for both good guys and bad guys, keeping them hidden and secure. There's a safe house mentioned in the Bible, and safe houses during WWII.
How Does a Thermocouple Work?
If your gas water heater keeps going out, or your gas oven won't heat, you may want to learn how to test the thermocouple on the gas valve. But how does a thermocouple work? Read this article to find out!
The Origins of the Steamship
science.howstuffworks.com/innovation/inventions/steamship.htm
Steamships quickly replaced sails in the early 1800s. Learn more about the origins of steamships and the innovations that led to their creation.
Modern Decline of Railroads
history.howstuffworks.com/american-history/decline-of-railroads.htm
The decline of railroads came about during the 1960s and 1970s as the automobile dominated transportation. Read about the decline of railroads.
Railroads of the 1990s
history.howstuffworks.com/american-history/1990s-railroads.htm
Railroads of the 1990s explains the history of American railroads through the 1990s. Learn about the history of railroads of the 1990s.
How Online Gambling Works
entertainment.howstuffworks.com/online-gambling.htm
Online gambling has grown in popularity since the first site opened 10 years ago. Find out how online gambling works and what online gambling games are available.