The Citicorp tower design flaw that could have wiped out the skyscraper: 99% Invisible by Roman Mars.

Design Flaw That Almost Wiped Out an NYC #Skyscraper: “corner” winds on Citicorp building require reinforcement
http://www.slate.com/blogs/the_eye/2014/04/17/the_citicorp_tower_design_flaw_that_could_have_wiped_out_the_skyscraper.html

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