Everyday Innovations

So-called "patent trolls" buy patents from others and use them to make money from companies that have built a successful market for a product. Have their tactics created a kind of tax on innovation?

By John Kelly

Electronic cigarettes were developed to help smokers get their dose of nicotine without the chemicals associated with burning tobacco. But are they any safer?

By Susan Cassidy

Researchers are constantly developing fabrics that can help keep you cool, whether you're working out or trying to get a good night's sleep. But how do they work, and which are the best ones?

By Carrie Whitney, Ph.D.

Despite a ho-hum name, paper shredders have an extraordinary (and juicy) history featuring the likes of Oliver North, Enron and all sorts of spies. What story will thrust this commonplace technology back in the limelight next?

By Kate Kershner

Ahhhh, the good old No. 2 pencil and its oft-used eraser. Have you ever wondered exactly what science is at work when that pink, rubbery lifesaver eradicates your blunders?

By Maria Trimarchi

Breastfeeding is a healthy way to feed young children, but busy schedules and other factors may keep mom from being available when baby's hungry. Breast pumps can help bridge that gap.

By Melanie Winderlich

Stethoscopes started as a way for 19th-century doctors to put some distance between themselves and grubby patients. Today though, this simple listening tool is one of the best ways to diagnose a range of problems.

By Julia Layton

In 1925, after an auto paint job gone wrong, a young research assistant was struck by the idea for adhesive tape. But how does tape actually stick, and how are we able to peel it off a roll?

By Julia Layton

It bends to your will, it has nifty ridges, and it allows patients and little kids alike to slurp along with everyone else. How did the flexible straw begin its days?

By Kate Kershner

You want to make a potato powered light bulb, but you're not sure how to do it. Learn about how to make a potato powered light bulb in this article.

By HowStuffWorks.com Contributors

You want to make a battery powered light bulb, but you're not sure how to do it. Learn about how to make a battery powered light bulb in this article.

Paper airplanes are much more than child's play.

By Laurie L. Dove

Ever wonder what's happening as your hair changes color? Permanent hair dyes physically and chemically change each hair, whether it's mermaid blue or bleach blonde.

By Laurie L. Dove

Nothing quite thrills like seeing fireworks light up the night sky. A lot of design and planning goes into creating the awe-inspiring shapes we've come to love.

By Karen Kirkpatrick

They're instantly recognizable - mostly for their color. We're talking about yellow legal pads. So who decided they'd be yellow, anyway?

By Meg Sparwath

Using a portable toilet at an outdoor concert or festival might be disgusting. But it sure beats going in a field! Now, imagine if your job were to clean out those suckers.

By Dave Roos

Ice sculptures can range from small tabletop pieces to entire buildings. In this fundamentally temporary medium, art and engineering combine to form sparkling, breathtaking effects.

By Nathan Chandler

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.

By Alia Hoyt

We humans aren't complete slaves to time. We've devised ways to pack an extra hour of sunshine into our day, thanks to daylight saving time. But who came up with this idea and why do so many people loathe it?

By William Harris, Kathryn Whitbourne & Desiree Bowie