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Cancer: What You Need to Know
health.howstuffworks.com/diseases-conditions/cancer/facts/cancer.htm
Cancer indicates a disease characterized by the abnormal and unregulated growth of cells. Learn about causes of cancer, cancer detection and cancer treatments.
How Crystal Skulls Work
science.howstuffworks.com/science-vs-myth/unexplained-phenomena/crystal-skull.htm
To some people, a crystal skull is simply a crystal in the shape of a human skull. But to those who believe in the supernatural, it can represent doom or hope.
How to Maintain an Air Conditioner
home.howstuffworks.com/how-to-maintain-an-air-conditioner.htm
Central air and window conditioners require routine maintenance to keep them operating at peak efficiency. It's important to know how a system's main parts function. Learn to troubleshoot a central air and room conditioner system.
How Zero Works
science.howstuffworks.com/math-concepts/zero.htm
You use the number zero all the time, but it may surprise you to learn that it sometimes isn't a number at all. It may surprise you even more to learn that it was all but invented. See what else surprises you about zero in this article.
How can someone be born with organs outside the body?
health.howstuffworks.com/human-body/parts/organs-outside-body.htm
You've heard stories about people born with organs outside their bodies. Does it really happen? Learn how organs can develop outside the body.
Fun Physics Activities for Kids
lifestyle.howstuffworks.com/crafts/seasonal/fun-physics-activities-for-kids.htm
Fun Physics Activities for Kids teach physics basics to future Einsteins using ordinary playground equipment. Learn fun physics activities for kids.
Is Insect Repellent Bad for Your Skin?
health.howstuffworks.com/skin-care/beauty/skin-and-lifestyle/insect-repellent-skin.htm
Insect repellent on skin -- is it safe? Take a look at what is in insect repellents and if it is safe to have insect repellent on skin.
How to Choose Quality Makeup Brushes
lifestyle.howstuffworks.com/style/makeup/face/how-to-choose-quality-makeup-brushes.htm
Quality makeup brushes can improve your overall look when applying makeup. Learn how to choose quality makeup brushes and get the insider scoop.
For the Benefit of All: The NASA Quiz
play.howstuffworks.com/quiz/nasa-quiz
The National Aeronautics and Space Administration has been exploring space for more than 50 years. How much do you know about the scientists, engineers, pilots and machines that carried America into space?
Understanding the Symptoms of a Bad Oxygen Sensor
Identify and tackle bad oxygen sensor symptoms for optimal vehicle performance. Expert insights on diagnosis and solutions.