How Tower Cranes Work
In almost any city on any given day, the skyline will feature one prominent outsider: the tower crane. Tower cranes rise 150 feet in the air and lift up to 19 tons. Plus, they actually build themselves.
Tower cranes are a common fixture at any major construction site. They're pretty hard to miss -- they often rise hundreds of feet into the air, and can reach out just as far. The construction… » Full Story on HowStuffWorks
Tower cranes are a common fixture at any major construction site. They're pretty hard to miss -- they often rise hundreds of feet into the air, and can reach out just as far. The construction… » Full Story on HowStuffWorks
