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Augmented reality is explained in this article. Learn about augmented reality.

A passport identifies a traveler as a citizen or national with a right to protection while abroad. Read more about using and applying for a passport.

Drug courts can change lives. HowStuffWorks talked to experts about drug courts and how they have also changed the criminal court system.

Floppy disk drives have been around since the birth of personal computing -- find out how they work!

A shark feeding frenzy occurs when multiple sharks fight for the same prey. Find out how a shark feeding frenzy plays out in the wild.

Collecting shark teeth is a hobby for many people, but why do we do it? Learn why collecting shark teeth is like gathering up pieces of history.

Microformats go into a Web page's code to provide more consistent formatting options for the author. Learn more about microformats.

Heating systems keep our homes warm during the winter, and air conditioning keeps us cool in summer. But do you know how HVAC systems work?

The Webby Awards are the premier awards honoring excellence on the Internet. Learn about the Webbys and their history.

Burglar alarms are found in every retail store and are becoming more common in private homes. Find out how a simple burglar alarm system works.

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