It's most likely that many tons of rubble from the towers entered the
lower floors of that building at a fairly high velocity and took out the
supporting pillers.
Ken

At 03:34 PM 9/12/01 -0400, you wrote:
>Marshall Dudley wrote:
>
>> I am going to try to get some better looks when they replay the
collapse.  I
>> think the center might have collapsed from the bottom, and the loss of
support
>> at the top once the center support was gone caused the outer shell to
collapse
>> from the top down.
>
>OK, I went to my TiVo and replayed what I had several times. The two main
building
>could have done what was indicated above, or it could have simply
collapsed from
>the top down (although I still don't see how that could happen if properly
designed
>and built).  There was a big explosion just preceding one of the tower's
collapse
>that could be heard on the tape I was watching.  What exploded?
>
>But the video on the 3rd building is VERY interesting.  It absolutely
collapsed
>from the bottom. It looks exactly like when they demolish a building.
Thing is, it
>was built conventionally without the outer walls being self supported. And
it fell
>exactly like I have seen lots of others fall from demolition.  Why?  It
makes no
>sense.  If supports gave way, then that part of the building would have
fallen, and
>the rest either stood, or fallen toward the area that failed.  But the entire
>building fell at once, IN ONE PIECE, as if all supports had been blown out
at the
>same time.  I am virtually certain that building was blown. I can think of
no other
>way it could have fallen the way it did otherwise.
>
>As far as the towers, the jury is still out on that one, could be either way.
>
>Marshall
>
>
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