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Creative Speculation
In reply to the discussion: Cutter Charges in the North Tower... [View all]hack89
(39,179 posts)35. If the core of the tower collapses straight down while the perimeter remains stationary
which would happen if the core columns were cut, then the floors would initially be dragged down towards the center of the tower. The center is falling, the perimeter is stationary. So no - it would not topple over. The floors would fall in toward the center of the building until they were separated from both the core and the perimeter. Then they would fall straight down.
Which is what we saw with the buckling of the perimeter walls just before the collapse.
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so you can tell from that picture that the puff is "exiting out of a single window"?
zappaman
Jan 2012
#4
But you haven't found it yet: keep looking. That link proves NOTHING. n/t.
apocalypsehow
Jun 2012
#71
There are reports of the air blowing down much further than that during the collapse.
Bolo Boffin
Jan 2012
#10
When the volume of a single floor went from 400K cubic feet to zero in fractions of seconds
hack89
Jan 2012
#15
"the installation of the charges took place at night and/or on the weekends when people weren't work
zappaman
Jan 2012
#22
maybe you and gyroscope can settle this and then get back to the rest of us
OnTheOtherHand
Jan 2012
#29
If the core of the tower collapses straight down while the perimeter remains stationary
hack89
Jan 2012
#35
The professional building community has been discussing these issues for some time.
AZCat
Jan 2012
#39
Hack says that "Buildings are not designed with vertical static loads in mind."
jesters
Jan 2012
#43