"In the case of the north tower, police chopper pilots reported seeing the warning signs - an inward bowing of the building facade - at least eight minutes before it collapsed at 10:29 a.m." New York Daily News reporter Paul Shin wrote in his June 19th, 2004 article:
http://www.skyscrapersafety.org/html/article_20040619.html
Investigators also found evidence that the south tower, which fell 56 minutes after it was struck by terrorists in a hijacked commercial jet, had less fire proofing than the north tower, which held up for about double the time after it was hit. The buildings were about a third full when the planes struck, and had they been fully occupied with 50,000 people, a complete evacuation would have taken four hours, probers found.
http://quote.bloomberg.com/apps/news?pid=10000087&sid=aCuh.ATdfOXc&refer=top_world_news
http://www.skyscrapersafety.org/html/article_20040619.html
Investigators also found evidence that the south tower, which fell 56 minutes after it was struck by terrorists in a hijacked commercial jet, had less fire proofing than the north tower, which held up for about double the time after it was hit. The buildings were about a third full when the planes struck, and had they been fully occupied with 50,000 people, a complete evacuation would have taken four hours, probers found.
http://quote.bloomberg.com/apps/news?pid=10000087&sid=aCuh.ATdfOXc&refer=top_world_news
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Vanhimmat
aiemmin, mutta rajallisen piirin tiedossa!