Monthly Archives: December 2014

A skyscraper nearly collapsed — what it means for you

A skyscraper nearly collapsed — what it means for you

In June 1978, the engineers who built the Citigroup skyscraper in midtown Manhattan got a call saying their building was at imminent risk of collapse. The call came from a Princeton University student who’d done new engineering calculations as part of her thesis. Those calculations showed the Citigroup building wouldn’t be able to withstand the… Continue Reading