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Structures: Suspension Bridges (3:46)
Bridges can hold heavy loads because of the constant pushing and pulling of each part of the bridge. A suspension bridge suspends its load from main cables that run along both sides of the structure.
Heal a Sick Building (4:04)
Watch this video about cleaning the air inside buildings on HowStuffWorks. Sick Building Syndrome is a problem most closely associated with chronic occupant sickness most often due to mold growth. See how to prevent your home and office from... More »
Structures: The Leaning Tower of Pisa (4:18)
The Leaning Tower of Pisa was designed to stand upright, but was built on soft, unstable soil that caused it to lean. The tower could be subject to a structural collapse because pressure on the lower part of the leaning side could cause it to... More »
Building the Beijing Olympic Stadium (2:01)
Watch this Reuters video showing how the iconic $500 million Olympic Stadium in Beijing was built. The arena is the centerpiece of the Beijing Olympics and it took more than four years to build.
How Green Building Works (1:33)
Builders are learning a variety of environmentally friendly building techniques. Learn more about green building in this HowStuffWorks video.


