Four vertical acres of the glass facade of a hotel lobby was covered with a cable net structure composed of a half a million hinged elements that sway in the wind and reveal the patterns of the wind. The artwork, a collaboration with architect Moshe Safdie, functions as a shade for the lobby, blocking 50% of the sunlight and heat. The overall shape of the cable net is a huge triangle, 200-feet tall at the top and over a1000-feet long. 70 miles of 1/8-inch cables are strung vertically across the facade, spaced every 6-inches. The wind-animated elements clamp to adjacent cables. Completed in 2011.