How Building Implosions Work

Safe, professional building implosions combine mathematics, intuition and sheer explosive power. Find out how the experts bring down huge structures without damaging the buildings nearby.

How Floating Cities Will Work

The world's first floating city is absolutely gigantic, fully loaded with amenities and necessities and could set sail in about three years. Find out what the Freedom Ship has in store for its lucky residents.

How Pyramids Work

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?

How Skyscrapers Work

People build skyscrapers primarily because they are convenient -- you can create a lot of real estate out of a relatively small ground area. They're also awe-inspiring. Skyscrapers capture our imagination -- how high can we build them? Learn about the architecture and design of these monumental buildings.

How Smart Homes Work

Wouldn't it be nice to have your favorite song start up the moment you walked in the house? Or to get the coffee brewing from bed? Smart homes can do all those tricks, and you might be able to afford one, even if you're not Bill Gates.

How Smart Structures Will Work

Smart Structures will completely change the way buildings react to earthquakes! See how they will work!

How Tunnels Work

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 Five Heaviest Buildings Ever Moved

If you've ever hefted your sofa up a flight of stairs, you know that moving is no fun. So why would anyone want to move a building?

Top Ten Natural Building Materials

New home construction takes a tremendous toll on the planet, but that doesn't have to be the case. These ten natural building materials can form sturdy, energy-efficient homes without the environmental impact.

What if the Alaska Pipeline blew up?

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?

What if the Hoover Dam broke?

Hoover Dam, often called the eighth wonder of the world, holds 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?

What if we covered a city in a giant glass dome?

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?

What is a levee?

Levees are a critical safety feature for low-lying areas, such as New Orleans. And when they break, surrounding land faces massive destruction. See what levees are all about.

How did public fountains, like those in Rome, work without any type of motor to pump the water?

Rome is famous for having large public fountains that work without the use of any kind of mechanized pump. How were these fountains able to generate enough water pressure without a motor? Check out this article for the answer to this question.

How to Make Your Home Energy Efficient

Once you've sealed and insulated the weak areas, routine cleaning and water conservation can further increase energy efficiency and save you even more money on your energy bills.