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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 Gizmondo Works
electronics.howstuffworks.com/gizmondo.htm
The Gizmondo is a handheld gaming console -- but it's also an MP3 player, a camera, a movie player, and a GPS reciever. Learn what else the Gizmondo can do and what sets it apart from other portable gaming units.
Sandpaper
home.howstuffworks.com/sandpaper.htm
Because sandpaper comes in various grades of coarseness, it's important to know which type to select for your home repair job. Find tips on this page.
Ridiculous History: Ranchers Hacked Barbed Wire Fences to Create Phone Lines
Barbed wire fences were used to create telephone networks in rural areas. Learn more about barbed wire phone lines in this HowStuffWorks Now article.
How to Use IRS Depreciation Tables
Depreciation can be a huge tax advantage for small business owners if you use the IRS depreciation tables correctly.
How Home Thermostats Work
home.howstuffworks.com/home-thermostat.htm
Thermostats are in every household, but have you ever wondered how they work? Learn about thermostats and take a look inside a home thermostat.
Why would circumcision decrease a man's risk of contracting AIDS?
science.howstuffworks.com/environmental/life/cellular-microscopic/circum-aids.htm
The results of three recent studies show that an uncircumcised man is twice as likely to contract AIDS from an infected woman as is a circumcised one.
How Much Do You Know About an EMT's Job?
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Whether it is a car accident or a medical emergency, an EMT is always ready to help. However, how much do you truly know about what they do? Get your blood pumping and get ready to show off your knowledge by taking our quiz.
How Weather Gadgets Work
electronics.howstuffworks.com/gadgets/home/weather-gadgets.htm
Weather gadgets are growing in popularity. Learn more about weather gadgets at HowStuffWorks.
How the New $20 Bill Works
money.howstuffworks.com/new-twenty.htm
With the introduction of the new $20 bill, the U.S. Treasury has introduced a whole new element to the dollar: color. Learn about the new look of the currency and about the benefits of the new features.