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May 5, 2011
Swaying high-rises and resonance frequencies
In a post a few weeks ago I linked to a humbling video of high-rise buildings in Tokyo swaying after the 9.0 quake. Well, those buildings were full of tens of thousands of people, plenty of whom had cameras. That video was only the beginning; below are many more that capture the dramatic oscillation of the towering steel edifices. The swaying is especially clear in the following video, likely filmed …