Engineering

It's a leap of faith onto a curvy steep wet chute... Discover how water slides work and what draws thrill-seekers to them.

By Tom Harris

X-ray machines seem to do the impossible: They see straight through clothing, flesh and even metal, thanks to some very cool scientific principles at work. Find out how X-ray machines see straight to your bones.

By Tom Harris

A robot and a human being are made up of the same basic components. And with each passing decade, robots become more lifelike. Find out how robots operate and the marvelous things they're already doing.

By Tom Harris & Chris Pollette

CAT scans take X-ray imaging to a whole new level. Find out how a CAT scan machine uses "slices" to form a 3-D computer model of a patient's insides.

By Tom Harris

Ever heard of a little unit called a femtometer? Can you tell us how much you weigh -- in petagrams? We know you can't, so hurry up and start reading. We have work to do.

By William Harris

When it came to building or improving things, the ancient Romans really knew their stuff. Which cool engineering tricks did they pass along to us?

By Gallagher Flinn

Pisa without its precariously tilted landmark is like San Francisco without the Golden Gate or London without Buckingham Palace. Will the peculiarly enduring tower ever vanish from the Italian skyline?

By William Harris

Robots continue to work their way into every aspect of our lives, but these advancements aren't self-sustaining. The fields of robotics, engineering and science depend on a steady pipeline of young minds. And that's where FIRST comes in.

By Marshall Brain & Robert Lamb

Dyneema is trademarked as the world's strongest fiber. Find out how this high-strength synthetic is capable of protecting an individual (or an entire vehicle) from IEDs or even shots fired from an AK47.

By Christopher Neiger

You probably know that high pitched or high frequency sounds can break materials apart. But did you know that high frequency sounds can be used to bond materials together?

By Craig Freudenrich, Ph.D.

Sports injury taping has undergone a quiet revolution over the last 30 years. How can a pattern of tape stuck to your body help you heal from (or prevent) an injury?

By Stephanie Crawford

Dozens of different types of architectural home styles from Federal to Mediterranean exist in the United States. Learn about the different types of architectural home styles in this article.

By HowStuffWorks.com Contributors

Glass ionomer cement is a kind of cement used in restorative dentistry. Learn what glass ionomer cement is in this article.

By HowStuffWorks.com Contributors

Full-size robotic mannequins give birth to robotic babies every day in medical training facilities. How do these mommy mimics prep students for the real deal?

By Craig Haggit

Sometimes it seems as though Earth has been hitting the caffeine a little too hard, with all the shakes from earthquakes. So, how do structures stand strong amid all those quakes?

By William Harris

The Bay Bridge is a wonder of structural engineering. Find out how multiple architectural styles were incorporated into the bridge that unites Oakland with San Francisco.

By Wesley Fenlon

A soft-story building has a first floor that's more flexible than the ones above -- think apartments over a department store that's mostly open space. How does soft-story retrofitting keep such buildings from collapsing in a quake?

By Jonathan Atteberry

Steel is getting more expensive because the prices of iron and coal are rising. Are there alternatives to steel that can do the same job -- or better -- for less?

By Becky Striepe

If you think regular old domes took the world of structural engineering by storm, you should meet their geodesic cousins. What is a geodesic dome, and who first came up with the idea of building triangle-covered spheres as practical structures?

By Nathan Chandler

Bridges span the gap and help us get from point A to B, but who knew they could float, too? Find out what the deal is with floating bridges in this article.

By Nathan Chandler

Jenga seems like such a simple game -- all you have to do is keep a tower of wooden blocks from toppling over. It may be simple, but it's anchored by several complex structural engineering concepts.

By Dave Roos

Playing with Lego blocks isn't just child's play. In fact, these blocks and products present a hands-on opportunity to learn the basics of structural engineering.

By Marianne Spoon

You may see most bridges as those things you cross on your way to somewhere else, but where would you be if one collapsed? We've figured out 10 reasons why the worst happens.

By Ed Grabianowski

The World Trade Center employed several new approaches to skyscraper construction. From slurry walls to sky lobbies to "tube within a tube" design features, what made this project distinctive from an architectural engineering standpoint?

By Michael Franco

The materials used to build the World Trade Center's twin towers have been heavily scrutinized since the 9/11 terrorist attacks -- including the steel that formed the frames of the skyscrapers.

By Michael Franco