Design choice for towers saved lives
13:14 12 September 01
Eugenie Samuel and Damian Carrington
A lucky choice of design for the World Trade Center towers reduced the death toll caused by their destruction, say engineers.
Each tower was struck by a passenger aeroplane, hijacked by suicidal terrorists, but remained upright for nearly an hour. Eventually raging fires melted the supporting steel struts, but the time delay allowed hundreds of people to escape.
http://www.newscientist.com/news/news.jsp?id=ns99991281
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