Max Photon
Graduate Poster
- Joined
- Jul 7, 2007
- Messages
- 1,592
Score the core?
Drs. Res,
I don't believe anyone in this thread is discussing the possibility of core columns being explosively CUT.
This thread is exploring what forces separated the core columns at the weld planes.
The primary forces are probably lateral impulses from still-attached members, or collisions from unattached members.
A question being explored is whether explosives were placed near the weld planes, not to cut the steel, but to simply break the welds.
(I happen to think not, but I certainly want to explore the possibility.)
Major Tom has compiled photographic evidence from the FEMA photos of core column ends that can serve as points of discussion.
Something to note...
Because the towers had so much potential energy, anytime one considers controlled-demolition, remember that demolition planners - who usually seek to minimize catalysts used - may have only needed to actively break 1/100th, say, of the core columns, to ENSURE a completed demolition. Maybe even fewer. Maybe none! Maybe just getting the perimeter to yield was sufficient to get the towers moving, and let gravity do the rest.
Breaking glass only requires differential weakening, using a light score.
Max
* * *
Major Tom,
What would explosively cut box columns look like vs. gravity driven collapse box columns?
Do you understand that in a real CD that columns are pre weakened?
How do they pre weaken these columns, and why do they do it?
What differences would you expect to see between the two?
Given what the honest answers are to the questions above, how would you come to the conclusion that the collapse of the buildings were do to CDs?
Drs. Res,
I don't believe anyone in this thread is discussing the possibility of core columns being explosively CUT.
This thread is exploring what forces separated the core columns at the weld planes.
The primary forces are probably lateral impulses from still-attached members, or collisions from unattached members.
A question being explored is whether explosives were placed near the weld planes, not to cut the steel, but to simply break the welds.
(I happen to think not, but I certainly want to explore the possibility.)
Major Tom has compiled photographic evidence from the FEMA photos of core column ends that can serve as points of discussion.
Something to note...
Because the towers had so much potential energy, anytime one considers controlled-demolition, remember that demolition planners - who usually seek to minimize catalysts used - may have only needed to actively break 1/100th, say, of the core columns, to ENSURE a completed demolition. Maybe even fewer. Maybe none! Maybe just getting the perimeter to yield was sufficient to get the towers moving, and let gravity do the rest.
Breaking glass only requires differential weakening, using a light score.
Max
* * *