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In reply to the discussion: Fire breaks out in Dubai skyscraper [View all]Sunlei
(22,651 posts)Here's a report on 7.
The 47-story World Trade Center (WTC) 7 building, which was heavily damaged by the collapse of the nearby WTC north tower, collapsed at 5:20 pm on September 11. A three-year-long investigation by the National Institute of Standards and Technology (NIST) concluded that the collapse of the WTC north tower ignited fires in WTC 7, which burned out of control on several floors because the water supply from the city water main had been damaged by the collapse of the twin towers. These fires caused the steel structure of the WTC 7 to expand and eventually buckle, causing the collapse of the building. NIST found no evidence of controlled demolition.
See the NIST videos on the collapse of WTC 7.
Read more: http://iipdigital.usembassy.gov/st/english/article/2009/04/20090428110108atlahtnevel0.7957117.html#ixzz3vwpxh3E2
http://iipdigital.usembassy.gov/st/english/article/2009/04/20090428110108atlahtnevel0.7957117.html#axzz3vwoB9cal