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Heart Pictures
health.howstuffworks.com/human-body/systems/circulatory/heart-pictures.htm
Take a look at these heart pictures to learn about the different parts of the heart and more. See our heart pictures to learn more.
Engine Performance Quiz
play.howstuffworks.com/quiz/engine-performance-quiz
Can you tell the difference between a camshaft and a stick shift? You will once you take the engine performance quiz. See if you know what makes your car get up and go.
How Does a GFCI Outlet Work?
home.howstuffworks.com/question117.htm
In my bathroom there is a plug that has a "Test" and a "Reset" button. When I push the "Test" button, it cuts off the current to the outlet. What is this? How is it different from the fuse in the fuse box?
Stored Energy Methods (Other Than Rechargeable Batteries)
science.howstuffworks.com/environmental/energy/question247.htm
One way to store energy is to use a battery, but what other ways can we store energy? Learn about different ways to store energy at HowStuffWorks.
Merkava Main Battle Tank
science.howstuffworks.com/merkava.htm
The Merkava Main Battle Tank takes the best features from American, British and Soviet tanks and has been Israel's main line of defense since 1979.
Skim Milk: Natural Weight-Loss Foods
Milk is nicknamed "nature's most perfect food." Learn about skim milk, weight loss, high-protein foods, and healthy diets.
Plumbing Basics
home.howstuffworks.com/home-improvement/plumbing/plumbing-basics-ga.htm
Plumbing follows the basic laws of nature - gravity, pressure, water seeking its own level. Learn about your home plumbing system.
How is digital 3-D different from old 3-D movies?
entertainment.howstuffworks.com/digital-3d.htm
Many people remember the weird, headache-inducing colors that were part of old 3-D movies. But in new movies like "Meet the Robinsons," 3-D loses the paper glasses and goes digital.
How are men's soaps different from others?
health.howstuffworks.com/wellness/men/hygiene/how-are-mens-soaps-different-from-others.htm
How are men's soaps different from others? Visit Discovery Health to learn how men's soaps are different from others.
What are the benefits to watching sporting events via live streaming?
entertainment.howstuffworks.com/live-streaming-sports-events.htm
What are the benefits to watching sporting events via live streaming? Learn about the options and benefits to watching sports via live streaming.