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What Is a Quartz Watch?

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Quartz watches actually use quartz crystals to keep time. How can they be so accurate? Find out why quartz makes such a great time keeper.

How Smoke Detectors Work

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As the saying goes, "Where there's smoke, there's fire." Smoke detectors are amazing: They're pretty inexpensive, but they save thousands of lives each year. Learn all about nuclear and light-sensing smoke detectors.

How Grass Works

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Grass plays an important role in enhancing the look of your house. Find out how grass grows and how to make your lawn the best looking on the block.

Top 10 Tips for Moisturizing Dry Skin

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The top 10 tips for moisturizing dry skin can improve your skin's appearance. Visit HowStuffWorks to see the top 10 tips for moisturizing dry skin.

Is your drywall making you sick?

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Is your drywall making you sick? Check out this article from HowStuffWorks about Chinese drywall to learn if your drywall is making you sick.

Why would I upgrade to a synthetic motor oil?

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Why would I upgrade to a synthetic motor oil? Learn about the pros and cons of synthetic motor oil.

How Landslides Work

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Landslides can be devastating, causing more damage than their triggers. Learn more about landslides and landslide causes.

How to Improve Skin Texture

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Want to know how to improve skin texture? Visit HowStuffWorks to learn how to improve skin texture.

What are the odds there is life in outer space?

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Are we alone? Jodie Foster's character in "Contact" didn't think so, and neither do the scientists who've been listening for an extraterrestrial message for decades.

10 Innovations in Water Purification

science.howstuffworks.com/environmental/green-tech/sustainable/10-innovations-water-purification.htm

As far back as 1500 B.C.E., people were trying to purify water to make it drinkable. And we're still at it. Today inventors use tools as simple as clay and as sophisticated as carbon nanotubes to bring clean water to the world.

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