The 104-story tower being constructed at One World Trade Center will be the cornerstone of the new, rebuilt World Trade Center complex. But it isn’t done yet, and something about the construction on top — the cranes, or the scaffolding, or the sort of cloth stuff that they put around the scaffolding, I don’t know construction words — caused it to make a spooky noise in rising pre-hurricane winds.
This probably worked more or less like the sculptures at Seattle’s Sound Garden, or like an Aeolian harp: As wind moves across a structure like a steel rod or a string, it throws off vortices, which make the rod or string vibrate and produce a tone. Which suggests that the cranes are probably to blame for making the building sound like a weird ghost. Well, better than what other cranes were up to during the storm, I guess.
Freedom Tower as æolian harp, Boing Boing.