BadComrade wrote:clocker bob wrote:Please cite your source for the 'half and half' load bearing distribution.
How about the photo of the tower under construction you posted?
What, you think those are not the towers? There must be a 100 photos that show the cores- here's another:
![Image](http://www.souptree.net/blog/images/wtc_underconstruction.jpg)
Here's the site minus the tags: http://www.souptree.net/blog/images/wtc ... uction.jpg
clocker bob wrote:You wrote that the towers had a "totally open floor plan", which is understandable, because the PBS special America Rebuilds showed animation that omitted the core columns.
Yeah, floor plan, as in where there are floors. The floors are between the core and the outer wall.
That's not what is implied by your earlier quote. An example of a totally open floor plan would be the United Center or some other basketball arena.
Obviously I (or the PBS doc) weren't implying that there was nothing but wall to wall floor, if that was the case, there wouldn't have been elevators / stairs. Duh.
Not duh. Do you have the DVD? The animation where they show the truss failure does not show the core columns. Here's a segment. It looks like the floors were stretched nets, like a boxing ring. They lied. You are still basing your theories of the collapse sequence on these lies.
![Image](http://911research.wtc7.net/disinfo/experts/articles/eagar_nova/nova_eagar1_files/coll_truss.gif)
Animation of a floor truss in the World Trade Center giving way. If they animated it, it must be true! Note that cross trusses, which ran perpenducular to the trusses shown, are omitted.
Here's the 9/11 Commission on the cores:
“The interior core of the buildings was a hollow steel shaft, in which elevators and stairwells were grouped” (Kean and Hamilton, 2004, 541 note 1).
Does that sound accurate?
clocker bob wrote:how do the failing trusses 'pull' the core columns down with them, or segment them so neatly? Why didn't the core remain like a spindle?
Because the trusses helped tie the outer wall to the core (almost in the same way that the wires between the wings of a bi-plane work), making the structure rigid. Take that tie away, and the outer support (which was damaged) is free standing. The inner core had damage as well. Left damaged, and to stand on their own, they were weak.
Your trusses are behaving very differently according to your needs, aren't they? On the exterior side, you have them failing, so the outer columns pull away. On the core side, you have them so strong that they maintain their grip on the columns, snapping them like chopsticks and pulling down the segments of columns as rapidly as the outside edge of these 'donuts' fall toward the ground. The inner columns were massive, much stronger than the buckles that were attached to them.
Sorry, there were charges.
clocker bob wrote:So,are you saying that there were massive fires on the floors below the plane impacts, and that these fires weakened the lower floors so dramatically that when the 'cap' above the impact zone dropped what, two floors, because of the supposed symmetrical truss failure, that this drop of two floors created such an impact on the floors below that this moving weight ( the same weight that the lower floors supported for 30 years ), this new dropping weight was now sufficient to drive through all the lower floors at free fall speed?
Yes. The outer walls and inner core weren't damaged when they were "supporting the "cap" for 30 years". Also, the "cap" didn't have any momentum to it for 30 years, and it was part of the structure for 30 years. Once that kinetic energy built up in the short "2 floor" fall, it was able to smash floor after floor under it.
That's Galanter's theory. We've both posted reams on the conservation of momentum and the fall rate. Remember, that initial drop didn't just have to break the resistance of the first floor under it- the initial shock would have been absorbed by ALL the floors under it, like a car's spring. It's not like a series of horizontal dominos that go snap, snap, snap, snap- it's a single immovable object , 80 plus floors, when confronted by the supposedly irresistible force. Galanter's calculations claim that after the first floor struck by the cap fails, the rest offer no more resistance than air. I don't buy it, not unless they were also weakened underneath, and if the fires weren't there, what weakened them?
Simple physics, really... I can stand on top of a an empty coke can, and it won't crush. If I bend at the knee quickly, that force of me falling will be enough to crush the walls of the can...
Heh... an empty can, with no core. Here's something- try it with a full can of pop. Just the presence of liquid will make it a whole different animal.
clocker bob wrote:The videos don't show these fires, but the testimonies of many who were in the vicinity and the radio transmissions of the firefighters do report explosions on the lower floors and in the basements. Why do you believe in magic fires that you can't see and not believe in those who lived through it?
Yeah, and I've been hearing "explosions" in Chicago, as I stated in another thread. As much as I believe they're explosions, I can't be sure that is what they are. Most of those people in those buildings were in super panic mode, and weren't really in a mindset that allowed them to judge "oh, that's an explosion!" Did you hear the sound of the bodies crashing in to the ground, etc on the doc footage that was shot inside the lobby before the first tower collapsed? Sounded like huge explosions.
It's not just people reporting this- do you know how many videos of the towers shuddering there are? Camera tripods shaking? The film from Hoboken that records the underground blasts? The giant puffs of smoke seen leaving the bases of the towers? It's all that and the eyewitnesses.
Hell, people were saying that there was someone "across the street" firing rockets in to the side of the twin towers... people say ALL KINDS OF CRAZY SHIT in situations like that.
Sure, there will be all kinds of crazy shit, but it will not be *all* all kinds of crazy shit. You can't dismiss it all.