Citicorp Center | NYC skyscraper saved by a student’s question

The Citicorp Center repair is a classic engineering case study of how mistakes must be avoided in engineering and construction of public works.  A skyscraper in New York City needed a unique structural system.  While reviewing the design a student asked a question that made the engineer realize that a mistake had been made.  There is a daring race to make the repairs for the building collapses.  The video gives the details and then discusses how the engineer handled the situation.

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