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Originally posted by KMFNWO
Seriously OP.
All kidding aside. You better come to your own conclusion and get focussed. Stop seeking others approval and go with what you believe.
Understand that this is a war. I know that sounds extreme but we are already taking casualties and it is time to stop pussy footing around and accept what is happening around you.
Don't just look at a single event. Take in the whole picture and you will see how it is all coming together.
With regards to your friends. State your case, look for a glimmer of cognitive thought then move on. Time is short and the work is plentiful.
Ask that God lead guide and direct you and you will do fine.
Originally posted by bsbray11
I'm not even going to argue about this with you, because to pretend that you are qualified enough to know what numbers are realistic is a joke. Analyzing a collapsing building requires dynamic analysis above and beyond even what structural engineers are required to know, and you sure as hell don't know anything about it.
Originally posted by Seymour Butz
LOL, like you know anything.
Continue with your irrational beliefs all you want.
The fact is, these things CAN be modelled. Some troofers have evn done this very thing, and have come up with results that say nothing is "fishy" about the collapse speed.
Originally posted by PplVSNWO
Have any links or evidence of "troofers" modeling and finding "nothing is fishy"? Personally I have never heard of this before, especially since NIST couldn't model the collapse, they ran their model to the point where they claim the global collapse initiated.
Originally posted by Seymour Butz
LOL, like you know anything.
Continue with your irrational beliefs all you want.
The fact is, these things CAN be modelled. Some troofers have evn done this very thing, and have come up with results that say nothing is "fishy" about the collapse speed.
6. How could the WTC towers collapse in only 11 seconds (WTC 1) and 9 seconds (WTC 2)—speeds that approximate that of a ball dropped from similar height in a vacuum (with no air resistance)?
NIST estimated the elapsed times for the first exterior panels to strike the ground after the collapse initiated in each of the towers to be approximately 11 seconds for WTC 1 and approximately 9 seconds for WTC 2. These elapsed times were based on: (1) precise timing of the initiation of collapse from video evidence, and (2) ground motion (seismic) signals recorded at Palisades, N.Y., that also were precisely time-calibrated for wave transmission times from lower Manhattan (see NCSTAR 1-5A).
As documented in Section 6.14.4 of NIST NCSTAR 1, these collapse times show that:
“… the structure below the level of collapse initiation offered minimal resistance to the falling building mass at and above the impact zone. The potential energy released by the downward movement of the large building mass far exceeded the capacity of the intact structure below to absorb that energy through energy of deformation.
Since the stories below the level of collapse initiation provided little resistance to the tremendous energy released by the falling building mass, the building section above came down essentially in free fall, as seen in videos. As the stories below sequentially failed, the falling mass increased, further increasing the demand on the floors below, which were unable to arrest the moving mass.”
In other words, the momentum (which equals mass times velocity) of the 12 to 28 stories (WTC 1 and WTC 2, respectively) falling on the supporting structure below (which was designed to support only the static weight of the floors above and not any dynamic effects due to the downward momentum) so greatly exceeded the strength capacity of the structure below that it (the structure below) was unable to stop or even to slow the falling mass. The downward momentum felt by each successive lower floor was even larger due to the increasing mass.
From video evidence, significant portions of the cores of both buildings (roughly 60 stories of WTC 1 and 40 stories of WTC 2) are known to have stood 15 to 25 seconds after collapse initiation before they, too, began to collapse. Neither the duration of the seismic records nor video evidence (due to obstruction of view caused by debris clouds) are reliable indicators of the total time it took for each building to collapse completely.
Originally posted by jprophet420
Thats amazing, freefall speed would be 9.2 seconds and one of the towers is quoted as falling in 9 seconds on bith the NIST report and the paper you cite.
Talk about posting evidence without reveiwing it.
Since the stories below the level of collapse initiation provided little resistance to the tremendous energy released by the falling building mass, the building section above came down essentially in free fall, as seen in videos.
Originally posted by mirageofdeceit
I'm looking for irrefutable evidence that shows the WTC7 couldn't have collapsed randomly at the time it did.
[edit on 21-6-2008 by mirageofdeceit]