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How Air Purifiers Work
home.howstuffworks.com/air-purifier.htm
Americans spend an estimated $250 million annually on air purifiers for their homes. Learn why people buy air purifiers and how they work.
How to Choose the Right Oil for Your Car or Truck
auto.howstuffworks.com/how-to-choose-the-right-oil-for-your-car-or-truck.htm
Choosing the right oil for your car is crucial. Learn how to choose the right oil for your car or truck at HowStuffWorks.
5 Anti-aging Supplements That Really Work
health.howstuffworks.com/wellness/aging/anti-aging-tips/5-anti-aging-supplements.htm
Do anti-aging supplements really work? Visit HowStuffWorks to learn about 5 anti-aging supplements that really do work.
Could You Pass a Cosmetology Certification Exam?
play.howstuffworks.com/quiz/could-you-pass-a-cosmetology-certification-exam
Have you ever wondered what it takes to break into the beauty industry? Wonder no more. We've compiled a list with questions you would be asked during a cosmetology certification exam. Do you think you've got what it takes? Take this quiz and find out!
5 Realities of a Post-antibiotic World
health.howstuffworks.com/medicine/medication/5-realities-of-post-antibiotic-world.htm
In a post-antibiotic world, many harmful bacteria grow resistant to the drugs we've been using. Learn what a post-antibiotic world might look like.
Understanding the Health Care Exemption Form
money.howstuffworks.com/personal-finance/personal-income-taxes/health-care-exemption-form.htm
The Affordable Care Act has a mandate that everyone have health insurance or pay up. Learn about the health care exemption form at HowStuffWorks.
Did James Earl Ray Really Kill Martin Luther King Jr.?
history.howstuffworks.com/historical-events/james-earl-ray.htm
More than 50 years after Martin Luther King Jr. was assassinated by a lone bullet while standing on the balcony of the Lorraine Motel, questions still remain. Was James Earl Ray the sole gunman, or was it a conspiracy?
How 3DO Creates Video Games
electronics.howstuffworks.com/3do.htm
3DO is one of the top video game companies in the U.S. with dozens of popular titles. Go behind the scenes and learn how 3DO creates a new game!
How Landfills Work
science.howstuffworks.com/environmental/green-science/landfill.htm
What happens to all of that trash you put on the curb every week? It doesn't just disappear into a parallel universe. Much of it probably goes to the local landfill, and how it gets handled there is a very involved system.
How Prisons Work
people.howstuffworks.com/prison.htm
Discover how prisons works and explore this incredibly complex system. Keep reading to learn how prisons work and what life is like on the inside.