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Cinnabar: Red, Beautiful — and Toxic
science.howstuffworks.com/environmental/earth/geology/cinnabar.htm
Cinnabar's bright-red pigment has been used in jewelry, pottery and makeup for millennia. But cinnabar is also the primary ore for mercury, making it a dangerous mineral if the particles are inhaled.
Does Your Home Need a Whole-house Surge Protector?
electronics.howstuffworks.com/whole-house-surge-protector.htm
A whole-house surge protector can defend an entire house from voltage spikes coming off the electrical grid.
Why Just 5% of Americans Account for 50% of U.S. Health Care Spending
health.howstuffworks.com/health-insurance/5-percent-americans-account-50-percent-health-spending.htm
Health care spending in America goes up enormously every year. Yet just a small number of people account for most of the money. Why is this and how can we rein that in?
How Transistors Work
electronics.howstuffworks.com/transistor.htm
The transistor moved the world from power-hungry vacuum tubes to portable solid-state electronics. Learn about transistors and how they changed electronics.
How Jet Packs Work
science.howstuffworks.com/transport/engines-equipment/jet-pack.htm
Thanks to several technological advancements, are jet packs closer than ever to becoming a reality for the average person? Find out how jet packs work.
Health Benefits of Fruits and Vegetables
recipes.howstuffworks.com/health-benefits-of-fruits-and-vegetables-ga.htm
Fruits and vegetables in your diet can protect you from heart disease and other illnesses. Learn about the health benefits of fruits and vegetables.
How Public Schools Work
people.howstuffworks.com/public-schools.htm
Public schools educate about 50 million students a year. A look at costs, challenges, magnet and charter schools and teacher quality.
American or Japanese: How Many Cars Can You Identify?
play.howstuffworks.com/quiz/american-or-japanese-how-many-cars-can-you-identify
American- and Japanese-made cars have created and embodied entire automotive classes. There are so many beautiful, iconic and innovative models. But can you tell them apart?
10 Vintage Motorcycle Brands
auto.howstuffworks.com/10-vintage-motorcycle-brands.htm
Some vintage motorcycles garner intense passion and following, whether it's Harley or Honda or Indian. Check out 10 vintage motorcycle brands at HowStuffWorks.
How Sleeve-valve Engines Work
auto.howstuffworks.com/sleeve-valve-engine.htm
What is a sleeve-valve engine? Read more about sleeve-valve engine technology at HowStuffWorks.