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How Metal Detectors Work
electronics.howstuffworks.com/gadgets/other-gadgets/metal-detector.htm
Metal detectors can help you find metal buried deep in the ground. Find out how metal detectors work and learn about the different types of metal detectors.
What can your spit tell you about your DNA?
science.howstuffworks.com/life/genetic/spit-dna.htm
Doctors always want your blood, but one day, a health care professional may ask you to open up and say, "Ptooey!" Why? Your spit holds a mother lode of biological information.
Top 10 Ancient Chinese Inventions
science.howstuffworks.com/innovation/inventions/10-ancient-chinese-inventions.htm
The ancient Chinese brought us many great innovations, including some that we take for granted in the modern world. Let's examine 10 of ancient China's greatest inventions.
How Lawn Tillers Work
home.howstuffworks.com/lawn-garden/professional-landscaping/lawn-tiller.htm
Lawn tillers are used to till the soil, which is the first thing you'll need to do before you plant a garden or lawn. Learn more about lawn tillers.
How Tupperware Works
people.howstuffworks.com/tupperware.htm
No kitchen would be the same after Tupperware was invented. Read about the origins of Tupperware at HowStuffWorks.
Can You Identify These Film Directors From an Image?
play.howstuffworks.com/quiz/can-you-identify-these-film-directors-from-an-image
Whether you look at films as an escape or as an opportunity to expand your compassion and understanding of the world, they wouldn't be possible without the brilliant minds of the directors who created them. How familiar are you with the directors who shaped the film industry?
Can You Guess the Movie Based on Its Tagline?
play.howstuffworks.com/quiz/can-you-guess-the-movie-based-on-its-tagline
Grabbing an audience's attention with a few words on a poster is an art! Sometimes, a great slogan can make more of an impact than the film itself. We challenge you to name these movies based on their taglines.
How to Remove Stains and Spots
home.howstuffworks.com/how-to-remove-stains-and-spots.htm
Removing stains and spots requires following important ground rules. Learn methods of stain removal, spot cleaning, and treating stains.
Can hybrid engines create more power?
auto.howstuffworks.com/fuel-efficiency/hybrid-technology/hybrid-engines-more-power.htm
Can hybrid engines create more power? Find out if hybrid engines can create more power at HowStuffWorks.
How Does GPS Work?
electronics.howstuffworks.com/gadgets/travel/gps.htm
For less than $100, you can get a pocket-sized gadget that will tell you exactly where you are on Earth at any moment. As long as you have a GPS receiver and a clear view of the sky, you'll never be lost again. Learn more!