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How Indoor Air Pollution Works
home.howstuffworks.com/home-improvement/household-safety/indoor-air-pollution.htm
Indoor air pollution can be up to 10 times worse than outdoor air pollution. Learn about indoor air pollution, its sources and its health effects.
How Continuing Education Classes Work
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Doctors, lawyers and other professionals take continuing education courses to stay current professionally. Learn how they find these courses.
How Crayons Work
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Crayons are steeped in the artwork of our childhoods. How did these popular little sticks of color actually come about? Find out from HowStuffWorks.
How Aerogels Work
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Aerogels are incredible materials that could have dozens of uses from insulation to oil spill cleanup. Learn about aerogels in this article.
How Fair Trade Works
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Fair trade promotes better wages and living conditions for local-level workers. Learn how consumers become essential parts of fair trade.
How to Volunteer Abroad
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Ever wonder how to volunteer abroad? Learn how to volunteer abroad at HowStuffWorks.
How the Avatar Machine Works
electronics.howstuffworks.com/gadgets/high-tech-gadgets/avatar-machine.htm
The Avatar Machine lets users see themselves from a third-person perspective as if they were in a virtual environment. Learn about the Avatar Machine.
Vagus Nerve Stimulation for Depression
health.howstuffworks.com/mental-health/depression/facts/vagus-nerve-stimulation-for-depression.htm
Vagus nerve stimulation may help people who are diagnosed with treatment-resistant depression. Learn about the pros and cons of vagus nerve stimulation.
Why do dentists need to use a dental dam?
health.howstuffworks.com/wellness/oral-care/procedures/why-do-dentists-use-dental-dam.htm
Dental dams can be awkward and used during certain dental procedures. Find out why dental dams are important to use.
Oak Ridge, Tennessee: America's Secret Atomic City
science.howstuffworks.com/oak-ridge-tennessee-secret-atomic-city.htm
The Manhattan Project built the city of Oak Ridge in rural Tennessee, where secret facilities produced uranium-235 for the atomic bomb.