Engineering is the discipline of design and construction of mechanical devices, equipment, structures and public works systems. Topics include aircraft technologies, buildings, bridges, robotics and heavy machinery.
Turning saltwater into tasty, drinkable H20 at desalination plants like this one is probably the biggest selling point of reverse osmosis, but let's back up a minute. What's osmosis, and why -- and how -- is reversing it useful to us?
Hefting a sofa up a flight of stairs can take a lot of logistics. So what does moving thousand-ton buildings across cities -- or even oceans -- entail?
Steam technology powered the Industrial Revolution, transformed the global shipping industry and revolutionized modern warfare. But how do steam engines actually harness the power of steam?
Lobsters have one of the animal world's most unique vision systems. Researchers hope to apply that system to scanners that will make steel walls transparent.
Domed cities would provide the same temperature year-round, no rain or snow, and the ability to go outside without worrying about a sunburn. Have they been tried before, and what about the people who enjoy their seasons?
The Hoover Dam holds back 10 trillion gallons of water. That's enough to cover the state of Connecticut 10 feet deep. How much damage would be done if the dam broke?
If you wanted to build a Great Pyramid in today's market, you would need to take into consideration a lot of factors. How much labor would you need? What about materials? And how much would it cost you?
The Alaska Pipeline carries oil from wells in the far north of Alaska down to the the port in Valdez, Alaska. If that pipeline blew up, what would happen to all that oil, and how much damage would it do?
Plastics can be shaped or molded into any form, and they're everywhere -- in your car, computer, toys and even bubble gum. But because they don't degrade, they cause big problems when it's time to throw them out.
A new robot is on the market that celebrates all things dinosaurs. Based on a Camarasaurus, Pleo goes through different stages of life -- hatching, infancy, adulthood -- just as a real dinosaur would.
Welcome to the wonderful and weird world of nanowires. Scientists can adapt this incredibly thin material for a number of uses, whether as a fiber-optic nanowire or to build increasingly smaller microprocessors. They're even used in medical implants.
Nanotechnology is so new, no one is really sure what will come of it. Even so, predictions range from the ability to reproduce things like diamonds and food to the world being devoured by self-replicating nanorobots.
It may seem like a strange idea, but one British researcher believes that by 2050, robots and humans will be able to marry legally in the United States. What social implications might this strange-sounding phenomenon have?
Robot armies could soon account for up to one third of all vehicles currently in service. Learn about robot armies and robot army development.
Created for social purposes, it’s meant to act as a virtual presence, helping keep far-off relatives and late-working parents connected to their families. What is it? A robot called the ConnectR.
Bots with a badge? Police robots are no longer the stuff of sci-fi movies like "RoboCop." Some cities are using robots to patrol beats, although they're more commonly used in dangerous scenarios.
You've just been diagnosed with cancer. You prepare yourself for chemotherapy -- losing your hair and getting weaker by the day. But your doctor has something else in mind.
When pyramids come to mind, most of us think of Egypt, but pyramids exist in many parts of the world. How were they constructed without earth-moving or heavy-lift machinery? And most of all, why were these amazing structures built?
Michelangelo was not only a great sculptor; he was also a master builder. He loved cities over nature and although had many architectural feats under his name, he often declared that he was not an architect. See the famous buildings of Michelangelo.
They don't have engines, brakes or accelerators. No, these amazing machines rely on physical, centripetal and gravitational forces to urge thrills, screams and that sinking stomach feeling we all love (and hate). Read more about the science of fun.
It walks, it talks and it works as a receptionist. Honda engineers have been busy creating the ASIMO robot for more than 20 years, and it shows.
London without the Tube? New York without its underground scene? Atlantans gliding straight from their MARTA stops to the airport? What would life be like without our underground transportation system?
In the TV series "The Six Million Dollar Man," scientists restore a crippled test pilot who lost legs one arm and an eye. While this is total fiction, an emerging field known as biomechatronics is coming close to this vision.
A tunnel can be simply defined as a tube hollowed through soil or stone, but actually constructing a tunnel is a challenge. Find out how tunnels are built.
The crossbow, a weapon popular with Wookiees, vampire slayers and some modern hunters, looks like a cross between a bow and a rifle. Read about it’s fascinating history and uses.
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