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How does St. John's wort work?

My glasses have an anti-reflective coating. How does that work?

Supersaurus was a sauropod of spectacular proportions. Learn more about the Supersaurus, Late Jurassic dinosaurs, and dinosaurs of all eras.

Learn why, or whether, the WTC memorial project is behind schedule.

Learn how to draw an iris and other flowers and plants with our step-by-step instructions. Bring out your inner artist as you learn to draw an iris.

Are foot scrapers safe for my feet? Find out if foot scrapers are safe for your feet at HowStuffWorks.

Popcorn certainly is unique, but have you ever wondered how it actually works? Check out this article to learn what makes popcorn pop and more.

Mexican jumping beans are small, brown beans that seem to have a life of their own as they jump and move around. But what is it that makes them jump?

I notice that most foods I eat have normal-sounding ingredients except one -- this stuff called "carrageenan." What is carrageenan?

The FCC has adopted rules creating a non-commercial FM radio (LPFM) service. Learn how a school or individual can start one of these radio stations.

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