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How AIDS Works
science.howstuffworks.com/life/cellular-microscopic/aids.htm
HIV continues to be a major global public health issue, having claimed more than 35 million lives so far.
How NORAD Works
science.howstuffworks.com/norad.htm
NORAD is a military operation that is jointly run by the United States and Canada. Learn about NORAD and the unique location for the NORAD headquarters.
How Hackers Work
computer.howstuffworks.com/hacker.htm
Hackers with bad intentions make up a surprisingly small percentage of the hacker community. Learn more about hackers and how hackers help the computer world.
Organ Function Quiz
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Whether you're an amateur anatomy buff or a full-fledged medical professional, we challenge you to test your knowledge with this organ function quiz ... if you have the guts.
How Caterpillar Backhoe Loaders Work
science.howstuffworks.com/transport/engines-equipment/backhoe-loader.htm
You see backhoe-loaders on nearly every construction site around town. Learn how these amazing machines work and what they are able to do.
How was the construction of the World Trade Center unique?
science.howstuffworks.com/engineering/structural/world-trade-center-construction-unique.htm
The World Trade Center employed several new approaches to skyscraper construction. From slurry walls to sky lobbies to "tube within a tube" design features, what made this project distinctive from an architectural engineering standpoint?
How to Avoid Spyware
electronics.howstuffworks.com/how-to-tech/how-to-avoid-spyware.htm
To avoid spyware requires some knowledge about the types of malware. Learn tips on how to avoid spyware and how to remove spyware at HowStuffWorks.
Pedestrian Deaths in the U.S. on the Rise
Pedestrian deaths are up in the U.S. and many factors are to blame. What can be done to stop it? HowStuffWorks looks several ideas from experts.
Why are Macs thought to be better than PCs?
computer.howstuffworks.com/macs/macs-better-than-pcs.htm
Some people think Macs are better than PCs. But is this really the case? Find out about both sides of the argument.
What Is an Oil Life Indicator?
auto.howstuffworks.com/under-the-hood/car-part-longevity/oil-life-indicator.htm
What is an oil life indicator? Visit HowStuffWorks to learn what an oil life indicator is.