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Weapons in space that can knock down missiles have been under development for years and are starting to look realistic. Learn how they will work!

An unselfish act is an act in which one person benefits while the person performing the act gains nothing. Find out if an unselfish act is possible.

A shark sense isn't so different from any of our senses, a shark sense is just sharper underwater. See more about shark sense and how each works.

You're probably standing in one right now, but do you know what a watershed is and how watersheds work? Learn how watersheds work here.

Learn several effective home remedies for dry hair, everything from ways to wash and dry to spa treatments using items from your refrigerator.

The Bierzo wine region is among Spain's best. Learn all about the Bierzo wine region at HowStuffWorks.

Measuring square footage can be somewhat complex. Learn about how to measure square footage at HowStuffWorks.

Southern food is the most unique of American cuisines. Learn all about Southern food and its roots at HowStuffWorks.

Do online social networks have more honesty or dishonesty? Take a look at social network honesty research and find out.

There are all sorts of materials used in patios these days. So what should you build yours with? Check out these top 5 materials used in patios.

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