As many of you remember, we have seen many pictures of core columns cut at an angle. There has been controversy over whether those were cut after the
fact, by clean up crews in order to dismantle the columns- or whether they are actual evidence of thermite cuts to bring the building down.
Here is one such video, which shows several pictures of these:
My simple point with this thread is that it wouldn't have taken cutting all of the columns to bring the buildings down. All that was necessary was to
cut key columns such that the remaining stress load was too great for the rest of the columns, thus causing them to collapse. It may very well explain
why we also see just BENT columns, in addition to the "cut" ones.
In this video, Gordon Ross explains exactly this, that column rows 5, 6, 9, and 10 were cut, or rather, as he later goes on to suggest with a picture
for evidence, were weakened or severed with explosives.
See about 4:30
He even states at about 4:50 that "The weakest core columns, the ones in rows 7 & 8, they stayed upright..."
Also he critically points out that the strongest columns, which were accessible close to elevator shafts failed, while the weaker columns, that were
not accessible to the elevator shafts, survived the initial stages of the collapse.
Obviously "accessible to the elevator shafts" would imply the ability to plant charges of some kind on or near them. But there is more-
The rest of his presentation:
The precise calculations necessary to achieve this were not likely performed by cave-dwelling Afghanis.
No, more likely it would have been
someone who had access to very detailed plans along with precise weight and stress load distributions of the towers to be able to accomplish this.
[edit on Wed Mar 10th 2010 by TrueAmerican]
What a sorry ass cop out way to respond to this thread. You obviously didn't read beyond the first paragraph... 
