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Deadly 1948 Donora Smog Launched the U.S. Clean Air Movement
A killer smog 70 years ago helped lead to the first federal air pollution laws.
What Is an Isotope?
science.howstuffworks.com/isotopes.htm
You don't need to be a fan of chemistry to appreciate isotopes. They affect geology and medicine, too.
Hiking el Caminito del Rey, Once the World's Most Dangerous Trail
history.howstuffworks.com/world-history/el-caminito-del-rey.htm
HowStuffWorks hikes El Caminito del Rey, a very dangerous hiking path in Spain that was closed to the public for 15 years after several deaths.
Tarantula Hawks Are Neither Tarantulas nor Hawks
animals.howstuffworks.com/insects/tarantula-hawk.htm
HowStuffWorks gets to know the tarantula hawk wasp, which has a powerful sting and lays its eggs on the abdomen of the tarantula.
Why Wainscoting Has Stood the Test of Time
home.howstuffworks.com/home-decor/decorating-styles-techniques/wainscoting.htm
Wainscoting might conjure up images of stodgy oak paneling. But forget that. This design element has stood the test of time because it can seamlessly blend into just about every style and decor.
9 Big Hairy Facts About Gorillas
animals.howstuffworks.com/mammals/gorilla.htm
HowStuffWorks looks at the elusive and powerful gorilla, of which there are two species, the Eastern gorilla and the Western gorilla.
What's the difference between ink and toner?
computer.howstuffworks.com/difference-between-ink-and-toner.htm
Ink and toner both go into and out of printers, but they have different functions. Learn about the differences between ink and toner.
How much do you know about makeup?
play.howstuffworks.com/quiz/how-much-do-you-know-makeup
Women and men have been wearing makeup for thousands of years and trends have defined generations. How well do you know your cosmetics? Find out with this HowStuffWorks quiz!
How Much Do You Know About "Steven Universe"?
play.howstuffworks.com/quiz/how-much-do-you-know-steven-universe-learn
In a world of Gem aliens, one boy teams up with the good guys to help save the day. Take this quiz and find out how much you know about Steven Universe and his friends!
8 Everyday Items Originally Invented for People With Disabilities
Many items enjoyed by people of all abilities were originally designed to help people with disabilities. Here are some inventions you may use every day that were originally for the disabled community.