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16 June 2014

Watch buildings move during earthquakes

Through literal eons of Earth’s history, earthquakes have heaved the ground, shuddered the trees, and sent fauna scurrying. Yet¬†aside from the occasional tsunami and the localized sloughing of rock faces and hillsides, they’d never really been directly injurious to the animal kingdom. …Until the animals started “sheltering” themselves under ponderous weights of precarious things. As the adage goes, “earthquakes don’t kill people; buildings do.” That edifice¬†that so importantly protects you …

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5 May 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 …

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