What combative spirits possessed the John ... tuned-mass dampers (TMD’s) were also installed in anticipation of uncomfortable vibration, but these are not yet in operation and no complaints have been ...

Image Mr. Campbell loved the John Hancock Tower in Boston, although he cautioned that “a city of Hancocks would be monotonous and inhuman.” His writing about the building, among other subjects ...

In many of the world’s tallest skyscrapers, there’s a secret device protecting the building and the people ... theory to the real world for tuned mass dampers. Trump Burger officially opens ...

British architect John Poulson caused ... earning the building the nickname Plywood Palace. All 10,344 windows were replaced. A tuned mass damper had to be installed when it was discovered that ...

The "tuned mass damper" can reduce the building's movements by up to 40%. Taiwan's tallest skyscraper, Taipei 101, survived a recent 7.4-magnitude earthquake with minimal damage. This is credited ...

The Taipei 101 building, once recognized as the tallest skyscraper in the world, uses an enormous tuned mass damper (basically a giant pendulum) to protect itself from earthquakes. The 660-ton ...

Known as a “tuned mass damper,” the 730-ton steel sphere is suspended between several floors at the top of the building, where it can be viewed by the public. The observatory is a popular ...

A 660-ton steel sphere hangs between the 87th and 92nd floors of Taiwan's tallest building. The "tuned mass damper" can reduce the building's movements by up to 40%. With the ability to move about ...

But at the top, with its location near the lake and overlooking the Magnificent Mile and the Gold Coast, the former John Hancock building might offer the most scenic views. And those views are ...

Felipe Berumen, of Oak Forest, working for Skyline Maintenance, washes windows on April 24, 2007, on the edge of Chicago’s John Hancock tower as diners in the Signature Room on floor 95 observe.