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Posted 1 May 2010 at 23:37 PM by cicorp
Updated 1 May 2010 at 23:38 PM by cicorp
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Even if the top floors collapsed, the floors below the jet impacts did exactly what they were designed to.
They were not under significantly greater weight than what they supported for over 30 years since 1971.
The bottom 92 floors of WTC1, and 76 floors of WTC2, had less than the normal weight on them.
They withstood the 13-February-1975 fire, and 13-February 1993 bombing just fine.
The above graphic simulates what should have been a worst case scenario....
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