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Is there a way to get energy for free?
science.howstuffworks.com/environmental/green-science/free-energy.htm
You've likely schemed ways to get energy for free, especially with energy costs rising. Is there a good way to get energy for free, or is it hooey?
How Cellular Electronic Payments Work
electronics.howstuffworks.com/cellular-electronic-payment.htm
Are you interested in learning how cellular electronic payments work? Check out HowStuffWorks for information on how cellular electronic payments work.
How the Sierra Club Works
science.howstuffworks.com/environmental/conservation/issues/sierra-club.htm
The Sierra Club protects the environment by lobbying for environmental preservation. Learn more about the Sierra Club conservation efforts.
How the Tornado Intercept Vehicle Works
science.howstuffworks.com/nature/climate-weather/meteorological-instruments/tiv.htm
Tornado chasers generally stay about a mile away from the tornado itself -- but not IMAX cinematographer Sean Casey. He has built a Tornado Intercept Vehicle and hopes to withstand a direct hit. Check it out.
How Spud Guns Work
home.howstuffworks.com/spud-gun.htm
A spud gun can hurl potatoes hundreds of feet at close to 400 miles per hour. But why is this staple of the dinner table such a popular projectile? Learn the science of spud guns and how they can be customized.
How Tooth Whitening Works
science.howstuffworks.com/innovation/everyday-innovations/tooth-whitening.htm
In the past few years, tooth-whitening has exploded as the physical upgrade of choice. Unlike nose jobs and chin tucks, just about anybody can afford to try this at home. Learn about different whitening techniques and how they work, and decide if you should give it a try.
How Ravelry Works
computer.howstuffworks.com/internet/social-networking/networks/ravelry.htm
Ravelry is a free social networking Web site for those who knit, crochet and spin yarn. See all the things that Ravelry can help you do.
5 Tips for Handling the Stress of Aging Parents
health.howstuffworks.com/wellness/aging/elder-care/5-tips-for-handling-stress-of-aging-parents.htm
Handling the stress of aging parents can be difficult. See our 5 tips for handling the stress of aging parents for advice.
How Tires are Made
auto.howstuffworks.com/how-tires-are-made.htm
Tire making is a tough job. Learn more about how tires are made at HowStuffWorks.
Understanding Eccrine Sweat Glands
health.howstuffworks.com/wellness/men/sweating-odor/understanding-eccrine-sweat-glands.htm
Eccrine sweat glands are an essential part of our thermoregulation. Visit Discovery Health to learn all about eccrine sweat glands.