Engineers Uncover New Details Of WTC Collapse

Structural engineers debate over how the World Trade Center towers collapsed.
November 13, 2001, 9am PST | Abhijeet Chavan | @legalaidtech
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[E]ngineers think they are closing in on the specific structural failures that, like a few loose stones on a mountain, set off the deadly sequence of events inside the burning, partly smashed buildings. It could all come down to the sagging steel underpinnings of a few floors, which then tore away connections held by pairs of three-quarter- inch bolts and a pattern of welds where the floors were bound to columns."

Thanks to Abhijeet Chavan

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Published on Sunday, November 11, 2001 in The New York Times
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