The Taipei 101 building uses an enormous tuned mass damper, or a 660-ton pendulum, to protect itself from earthquakes ...

A TMD is a giant ball made of steel or concrete that weighs ... It may not be the tallest building anymore, but on Saturday Aug. 8, Taipei 101 set a different record. Or rather its damper set ...

Taiwan's tallest skyscraper, Taipei 101, emerged largely ... damper is constructed from 41 steel layers and swings within a limited range to counteract the building's movement.