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


To: Doug R who wrote (16012)9/19/2006 11:44:30 PM
From: TigerPaw  Respond to of 20039
 
Tests show that 2 hours at 1500 degrees wouldn't cause collapse.


You actually have that backwards. The tests showed taht 1500 degress was more than enough to make the floor joists weaken and begin to sag pulling the sides in.

TP