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How does the walkie-talkie feature on a Nextel phone work?
electronics.howstuffworks.com/question530.htm
Nextel phones offer a service that allows you to push a button and connect with another Nextel user. Find out how this "walkie-talkie" feature works.
How Do Brewers Measure the Alcohol in Beer?
recipes.howstuffworks.com/question532.htm
How do beermakers know how the alcohol content of a beer? HowStuffWorks gets to the bottom of it.
How Refractive Vision Problems Work
health.howstuffworks.com/human-body/systems/eye/vision-refractive.htm
Millions of people have refractive vision problems -- when the eyes get blurry or can't focus on an object. Learn about four major types of refractive vision problems.
How Power Brakes Work
auto.howstuffworks.com/auto-parts/brakes/brake-types/power-brake.htm
Power brakes are fairly ingenious machines -- these systems allow you stop a car with a simple twitch of your foot. Take a look inside the black cannister that provides the power.
How the Body Uses Cholesterol
Cholesterol is vital because of the role it plays in body chemistry. Learn what it produces in the body, including estrogen, testosterone and bile.
Comfrey: Herbal Remedies
health.howstuffworks.com/wellness/natural-medicine/herbal-remedies/comfrey-herbal-remedies.htm
Comfrey can be used in herbal remedies that topically heal bones and wounds more quickly. Learn more about how to use comfrey roots.
Fennel: Herbal Remedies
health.howstuffworks.com/wellness/natural-medicine/herbal-remedies/fennel-herbal-remedies.htm
Fennel can be use in herbal remedies for digestion problems and is often used as in bulk seed form. Learn more about fennel and how it can help.
Herbal Remedies for Dental Problems
Herbs can help relieve oral problems like inflamed gums, bad breath and toothaches. Learn how to treat oral issues with herbal remedies.
How to Play Vanishing Cross
entertainment.howstuffworks.com/how-to-play-vanishing-cross.htm
Vanishing Cross is a popular solitaire card game in which the object is to build a 13-card sequence for each suit. Learn how to beat the deck.
Health Benefits of Nuts
recipes.howstuffworks.com/health-benefits-of-nuts-ga.htm
Nuts help the body in many ways, including lowering LDL cholesterol and total cholesterol levels. Learn the health benefits of nuts.