Season 34, Episode 1 Building on Ground Zero

First Aired: September 5, 2006

“Building on Ground Zero” details some of the structural reasons for the collapse of the World Trade Center buildings, employing computer animation and 9/11 footage to explain a National Institute for Standards and Technology report on the subject. Included: proposals to revise American building codes, such as increasing the width of stairways. Also: WTC lead engineer Leslie Robertson leads a tour of a complex on which he is working, the 101-story Shanghai World Financial Center.

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  • Premiered: March 3, 1974
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  • Premise: PBS's premier science-documentary series, which has won six Peabody Awards and more than 20 Emmys (four in 2002 alone) since its 1974 debut. `Nova' clearly, and often engagingly, `demystifies' a vast range of science, technology and history topics---past a… (more)

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