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Politics : Bush-The Mastermind behind 9/11? -- Ignore unavailable to you. Want to Upgrade?

To: inchingup who wrote (14573)	9/4/2006 3:21:15 PM
From: atm_prophet	Read Replies (1) \| Respond to of 20039

I believe what he said .. no further analysis needed I don't need to know how a watch works to tell the time

To: inchingup who wrote (14573)	9/4/2006 3:22:53 PM
From: longnshort	Respond to of 20039

Collapse of WTC 7 – Working Hypothesis NIST is interested in determining why and how the 47-story WTC 7 building, a more typical tall building, collapsed even though it was not directly hit by an aircraft. The NIST investigation team has formulated the following chronological sequence of major events leading to the eventual collapse of WTC 7: * An initial local failure at the lower floors (below Floor 13) of the building due to fire and/or debris induced structural damage of a critical column (the initiating event), which supported a large span floor bay with an area of about 2,000 square feet. * Vertical progression of the initial local failure up to the east penthouse, as large floor bays were unable to redistribute the loads, bringing down the interior structure below the east penthouse. * Horizontal progression of the failure across the lower floors (in the region of Floors 5 and 7, that were much thicker than the rest of the floors), triggered by damage due to the vertical failure, resulting in the disproportionate collapse of the entire structure. The working hypothesis is consistent with all evidence currently held by NIST, including photographs and videos, eyewitness accounts and emergency communication records. Based on a review of the fuel system for emergency power in WTC 7, Floor 5 – which did not have any exterior windows and contained the only pressurized fuel distribution system on the south, west and north floor areas – is considered a possible fire initiation location, subject to further data and/or analysis that improve knowledge of fire conditions in this area.