The 660 Tonne Golden Ball That Holds a Skyscraper Still - Taipei 101

Taipei 101 is 508 metres tall and built in the worst possible place for a skyscraper - where Pacific typhoons and Ring of Fire earthquakes both try to make it sway. So near the top, in plain sight, hangs a 660 tonne golden ball. This is Taipei 101, and that ball is the most famous tuned mass damper on Earth. We cover why a tall tower fears sway, in wind and in quakes; the pendulum trick that fights it; the giant sphere hung between the 87th and 92nd floors on dozens of steel cables; how it swin