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Originally posted by fulllotusqigong
reply to post by exponent
Bring it on! So somehow in all the steel frame buildings in the world WTC 7 was the first to have total symmetrical free fall collapse on the same day that two other steel frame buildings did as well.
Your only evidence is that since it hasn't happened before then it can't be proved to not have happened.
So you are saying "you can't prove a negative."
Obviously a negative can not be proven but it makes for a nice rhetorical argument on your part!
That is basic logic. Something new happened here yet you're arguing that what was "new" was the building designs of the trade centers.
So go ahead and prove that the trade centers were somehow designed to be vulnerable to fire.
It's already been proven that FEMA mispresented the design of the trade centers with their "pancake" model -- ignoring the central core.
For the towers to collapse the way we saw them collapse basically implies that the columns simply collapsed into themselves, they telescoped straight down. Ah steel keeps a lot of its structural integrity even when heated. Until you begin to approach the melting point you don't really see a catastrophic loss of strength and this is what we're talking about. We're talking about basically vertical box columns collapsing into themselves which implies a complete loss of mechanical strength.
Once this foam was compromised then they used very light and long trusses which could rapidly be heated and deformed. The lack of significant cross bracing and the length and vulnerability of these trusses is eventually what brought the buildings down.
Originally posted by fulllotusqigong
This type of hyperbole about details is not an argument.
To say WTC 7 collapse "was not symmetrical" is a complete distraction about an irrelevant detail.
You're talking about precision versus accuracy. It is accurate to say WTC 7 was a symmetrical fall -- this is obvious just from watching it fall.
Now if you are ignoring reality on this basic fact then you've already proven yourself completely mind-controlled on 9/11.
You said you would provide evidence that WTC 7 was particularly vulnerable to fire.
Instead you are saying there were no "simulations of fire" when WTC 7 was built.
That is not evidence about WTC 7.
I'm still waiting.
Yet you are reversing this argument by saying since they're weren't tests when the building was built then it could have collapsed symmetrically at free fall speed due to fire.
You don't have any evidence for this.
Originally posted by fulllotusqigong
Here's the truth:
Initial collapse was the core columns being taken out by controlled demolition. That's exactly how a controlled demolition is done.
Do you have evidence of your unique fire vulnerability that suddenly caused the "initial collapse" of all the core columns?
Nope. Yet have there been controlled demolitions in the past that have taken out the core columns as "initial collapse"?
Yep.
So your fantasy once again proves the controlled demolition.
You have said it is because there was a pre-existing foundation -- is that why there was molten steel burning in the foundation after the collapse of WTC 7?
Originally posted by fulllotusqigong
You keep saying the evidence is in the NIST report - -then what is that evidence?
Go ahead and provide it!
...
And you refer to the NIST report yet provide NO DETAILS -- NO EVIDENCE
DANNY JOWENKO: They simply blew up columns and the rest caved in afterwards.
If you want more information you can search my previous posts as I have answered questions about these tests many times.
Originally posted by fulllotusqigong
You have posted lies so far.
You said it was not a symmetrical collapse.
You said there was a "initial collapse" and then a "global collapse."
Again that's all covered in the controlled demolition.
You said there was a pre-existing foundation but you have given no details as to how that caused the free fall collapse.
You said that the molten steel could not be caused by controlled demolition implying it was caused by the collapse.
How was molten steel caused by a building collapse? What was burning in the building to create molten steel?
So far all you've done is a cover up of reality -- claiming it's not a symmetrical collapse and that it's not free fall because of a hidden "initial collapse." You're making up distractions about details that are not accurate.
So then your response is - just read the NIST report.
But if you have read the NIST report then why can't you provide evidence?
How do you know I have not read the NIST report?
Why should I think you've read the NIST report if you can't provide any details of its content?
So let's be clear -- if any information is on youtube then it doesn't count for you?
Danny Jowenko's youtube interview is not real evidence for you?
I quoted the interview he did -- in written form -- it's the same words as on the video - only printed out.
Is that better for you -- the words need to be read instead of viewed in a video - do they now exist for you?
"WTC7 has 24 core columns. Removing one column = no. 79 between floors 11/13 does not produce overload of adjacent two core columns (or perimeter wall columns). You can evidently continue to remove (adjacent) core columns at floors 11/13 to see when an adjacent core column becomes overloaded and will buckle by itself and then you should check it it means that further, adjacent columns just fail/buckle by themselves ... and how much of the load drops down (or out = does not contribute to further actuion) and how much is transmitted to still intact structure to assist further destruction. Or in other words - arranging local failures as suggested above will probably result in serious local failures, e.g. one part of the structure/tower collapses due to bottom supports having been removed and the load drops off the structure, while the remainder structure still stands." (Heiwa)
Thus to summarize: NIST’s collapse analysis discussed on pages 586 to 598 of NCSTAR 1-9, indicates that interior column buckling started at 15 seconds into the computer simulation and was complete at the 20 second mark; exterior column buckling started at 21.5 seconds and was complete within 2 seconds at the 23.5 second mark. Hence, the major kinetic energy production depicted in Figure 12-74, which starts at about 23 seconds of the computer simulation and peaks at 27.5 seconds, covers a time interval when, according to NIST: “the entire building moved downward as a single unit”. It is therefore very difficult to imagine how, during this phase of the global collapse of WTC 7, NIST is able to make a distinction between “attached” and “detached” steel and/or concrete structural elements in the chaos of a building undergoing self-destruction. Hopefully, one day, NIST will explain how it accomplished such a remarkable feat of scientific analysis; but until that day this feature of the NIST Final Report - the curious Figure 12-74 - will remain unverified and little more than an object of extreme skepticism and puzzlement.
Whatever the mass of WTC7 is/was, it was safely carried by 24 inner columns and a much larger number of wall perimeter columns. According NIST WTC7 Final Report (20 November 2008) page 90: "WTC7 was prone (sic) to classic progressive collapse in the absence of debris impact and fire-induced damage when a section of Column 79 between Floors 11 and 13 was removed (sic). The collapse sequence demonstrated a vertical and horizontal progression of failure upon removal (sic) of the Column 79 section, followed by buckling of exterior columns, which led to the collapse of the entire building." So according NIST by removing one little part between floors 11/13 of an inner column (no. 79) remaining 23 inner columns and all wall perimeter columns fail simultaneously and the mass above the failures drop free fall. I wonder who or what removed the column 79 piece! Gravity does not remove steel columns. To remove a piece of a column you have to cut it in two places and then shift it out of the way. Did fire do that? Or thermal expansion? The NIST software to do the FEA and then to establish and analyse all structural failures and finally, to keep track of all loose parts flying around is a mystery. Does such software exist? In my view the software used to create the pictures in the report is the same that is used to design disaster films in Hollywood and to attempt to simulate such destructions.