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Originally posted by Valhall
Well sure I can! The collapse - according to the manipulation of their model - was created by the worst case damage model of the jet at the highest speed and greatest strength and highest mass for the plane, the least strength model of the building
and temperatures far in excess of any temperatures sample testing showed to exist in the building.
In addition, their model completely ignored the behavior of the central core section,
AND ignored the specimens they had collected which indicated the core section fell, pulling down the floors and the outer walls with them and failing the outer floor connections in a downward motion while keeping the core section floor connections intact, for the most part. I could go on, but I've discussed every bit of this in numerous threads on this board...so I'll quit for now.
Can you tell me what the NIST report states AFTER the initiation of collapse?
P.S. I am a degreed Aerospace Engineer who has worked for 17 years in mechanical design, stress analysis, fatigue analysis and specialized in the metallurgical side of steel design.
Originally posted by exponent
Originally posted by Valhall
Well sure I can! The collapse - according to the manipulation of their model - was created by the worst case damage model of the jet at the highest speed and greatest strength and highest mass for the plane, the least strength model of the building
So far this all seems within the normal range of error analysis.
and temperatures far in excess of any temperatures sample testing showed to exist in the building.
Did they have justification for using these temperatures?
In addition, their model completely ignored the behavior of the central core section,
Cite please?
AND ignored the specimens they had collected which indicated the core section fell, pulling down the floors and the outer walls with them and failing the outer floor connections in a downward motion while keeping the core section floor connections intact, for the most part. I could go on, but I've discussed every bit of this in numerous threads on this board...so I'll quit for now.
This is not NISTs explanation.
Can you tell me what the NIST report states AFTER the initiation of collapse?
Sure, NIST references the work of Dr Bazant whos calculations indicate that the KE released by a single floor failure would be enough to overwhelm the next floor down. Because momentum is conserved this next floor will impact the subsequent floor with even greater KE and so begins a progressive or 'pancake' collapse.
Excellent, hopefully you can explain to the people I am debating how you can heat a rod and that area of heat will remain relatively local due to the difference in surface area. I assume you don't disagree with me on this?
Since you did not get NISTs failure mechanism correct, although you were aware of their modeling scenarios, I don't want to pick out any specific criticism of my own. I'll let you make the points and I'll rebut them if applicable?
Originally posted by cashlink
No, I did not say your posts are fallacies and you know that!
You made the statement that my post is a fallacies.
So since you think my post is a fallacies please point out what the fallacies are.
Please point out with proof, what I said about Mark Roberts that is a fallacy?
An appeal to authority or argument by authority is a type of argument in logic called a fallacy. It bases the truth value of an assertion on the authority, knowledge, expertise, or position of the person asserting it.
...
It is one method of obtaining propositional knowledge, but a fallacy in regard to logic, because the validity of a claim does not follow from the credibility of the source.
Cashlink:
Oh no I can’t believe you are going to stand behind a tour guide LOL
...
Richard Gage, I’m a architect of 20 years currently working on a 400 million dollar project ...” “I’m Mark, I’m a tour guide”
Mark Roberts needs to go to school and get a life he of all people is not a credible source.
He think he is going to put a 20 year experience architect to sham with out any education
...
Mark Roberts lacks education in all these fields; he is by no means an expert in anything in the above.
A straw man argument is an informal fallacy based on misrepresentation of an opponent's position. To "set up a straw man" or "set up a straw man argument" is to describe a position that superficially resembles an opponent's actual view but is easier to refute, then attribute that position to the opponent (for example, deliberately overstating the opponent's position).
Cashlink:
Mark Roberts thinks he knows more about architect than any architect does.
Mark Roberts thinks he knows more about engineering than any engineer does.
Mark Roberts thinks he knows more about demolition than any demo expert dose.
Mark Roberts thinks he knows more about sciences than any scientist knows.
Mark Roberts thinks he knows more about fire than the firemen know.
Poisoning the well (or attempting to poison the well) is a logical fallacy where adverse information about a target is pre-emptively presented to an audience, with the intention of discrediting or ridiculing everything that the target person is about to say. Poisoning the well is a special case of argumentum ad hominem
Cashlink:
Mark Roberts lacks education in all these fields; he is by no means an expert in anything in the above.
...
Mark Roberts has it all WRONG!!
Mark Roberts tell a lot of lies.
Originally posted by Valhall
It IS, in fact, within the normal range of error analysis. The problem is the NIST ONLY reported the results of this worst case scenario because the lesser scenarios did not initiate failure.
They were pressed by the families of the 911 victims to publish the others and refused. Not only did they refuse, they went in and rewrote key phrases of their reasoning for not publishing the other scenarios - thereby eliminating phrases that could be used against them in the report.
No, they did not. Other than the justification that the lower temperatures did not initiate failure (that's in the report and you should know that if you read it). They kept jacking the temperature up until they finally got failure of the floor connections.
What are you kidding me? NIST WTC failure report of 9/11/01. Read it.
That pretty much goes without saying considering I started the statements with "AND ignored..." Right?
Right - they did nothing but jack with the numbers until they got initiation of failure. Which means they proved nothing that led to the resultant global collapse of the building. (Especially since their failure initiation model was bogus.)
I'm not even getting what the importance of your point is. Heat conducts faster through a small cross-section than a large cross-section. I'm assuming that's what you want me to say.
Done...done in triplicate.
Originally posted by exponent
Originally posted by Valhall
It IS, in fact, within the normal range of error analysis. The problem is the NIST ONLY reported the results of this worst case scenario because the lesser scenarios did not initiate failure.
Actually this is also wrong, they never carried the lesser scenarios this far.
They were pressed by the families of the 911 victims to publish the others and refused. Not only did they refuse, they went in and rewrote key phrases of their reasoning for not publishing the other scenarios - thereby eliminating phrases that could be used against them in the report.
I am not aware of this claim. Can you cite please?
No, they did not. Other than the justification that the lower temperatures did not initiate failure (that's in the report and you should know that if you read it). They kept jacking the temperature up until they finally got failure of the floor connections.
I have read the entire report, so NIST did not conduct any tests to ensure their models matched the temperatures involved? Is this your claim?
What are you kidding me? NIST WTC failure report of 9/11/01. Read it.
I have read the entire NIST report, 11,000 pages in all. I will need you to be a little more precise than that!
That pretty much goes without saying considering I started the statements with "AND ignored..." Right?
Perhaps, but in that case you have ignored the question I gave you. We can get on to what evidence you believe they ignored (the core structures actually survived both collapses far longer than any other building component) if you like.
Right - they did nothing but jack with the numbers until they got initiation of failure. Which means they proved nothing that led to the resultant global collapse of the building. (Especially since their failure initiation model was bogus.)
But this is not what I was discussing. I told you what happened post-collapse initiation. Is the work of Dr Bazant wrong? How about the more recent work by Gregory Urich of ST911J (or a similar acronym, you'll forgive me for forgetting which one of the groups he's part of)
I'm not even getting what the importance of your point is. Heat conducts faster through a small cross-section than a large cross-section. I'm assuming that's what you want me to say.
No, because that is in fact the opposite of reality? The larger the surface area, the faster the heat conduction (at least as far as I am aware! Perhaps I am in the wrong!)
Originally posted by Valhall
Can you tell me what the NIST report states AFTER the initiation of collapse?
Originally posted by cashlink
Oh no I can’t believe you are going to stand behind a tour guide LOL
What a joke, please I laugh my head off watching this want Abe know it all!
Richard Gage, I’m a architect of 20 years currently working on a 400 million dollar project ...” “I’m Mark, I’m a tour guide”
Mark Roberts needs to go to school and get a life he of all people is not a credible source.
He think he is going to put a 20 year experience architect to sham with out any education
Originally posted by NIcon
Not to interupt into this conversation but I just wanted to mention they still have not updated one of their corrections. I downloaded NCSTAR 1-2 on August 31st of this year and it still says on page 281/462 "The less severe damage case did not meet two key observables: (1)................ (2) the fire-structural and collapse initiation analyses of the damaged towers (NIST NCSTAR 1-6) indicated that the towers would not have collapsed had the less severe damage results been used."
Originally posted by cashlink
Architects, Engineers, and Scientists Analyze Failings of NIST's WTC 7 Final Report!
If it was not the highjackers who blew up the WTC then who did?
www.ae911truth.org...
Yes - I can cite. You can do a search of "Family of 911 victims" or you can do a search in the 911 Forum of this board. It's been discussed ad nauseum here.
Originally posted by Valhall
I'll refrain from calling you a liar and just say - this is a terribly false statement.
My "claim" is not a claim. It comes straight from the NIST report. They could not get the floors to fail at the temperatures for which they had data so they continued to elevate the temperature FAR beyond any data they had to support until the floors failed. THAT's what they did.
Again...ad nauseum...here on the board. I will not do your research work for you. It's all here. It's all been discussed too many times for me to even want to start over. Do a search here if you don't want to re-read the sections that didn't stick in your mind the first time. I stated to you before the contradictions between the failures of the connections and the lack of explanation in the model to agree with those connection failures.
Please note - I said cross-sectional area...you're saying surface area. There's a really big difference.
Originally posted by NIcon
Not to interupt into this conversation but I just wanted to mention they still have not updated one of their corrections.
Originally posted by cashlink
Regarding your breaking civility rules, your not so clever games of semantics is a start. What better way to draw attention away from the subject of the OP.
Originally posted by gottago
exponent, I think what Val is after is this:
Three words. "Global collapse ensued." Repeated twice; one for each tower.
A slap in the face and an insult to one's intelligence.
A word of advice, quit while you're behind.
Originally posted by exponent
Unfortunately I have no choice but to quit, as rhetoric seems to be more important than actual debate here. You, along with many others are simply trying to ridicule the NIST report. I don't assume for a second you've actually done the calculations to confirm or deny Dr Bazant's model? Do you have any empirical data at all that shows global collapse would not ensue? I find it unlikely.
Originally posted by Valhall
AE911 isn't the truth movement. The organization as a whole does not have some kooky theory they are promoting.
Originally posted by exponent
I'm trying to respond to a few posts here, but this is quite difficult because of the lack of any actual citations. For example:
These are not citations, they are known as excuses. You're clearly not trying to have any sort of proper debate here and are just trying to score points against the NIST report. I have no interest in arguing against such a facile position.
Please note - I said cross-sectional area...you're saying surface area. There's a really big difference.
Not if you actually read what I am saying. Cross sectional surface area. Now I may well be wrong, but I am pretty damn sure that the greater the cross sectional area the more heat will be transferred.
Originally posted by NIcon
Not to interupt into this conversation but I just wanted to mention they still have not updated one of their corrections.
Did you miss their Erratum? wtc.nist.gov...
Originally posted by gottago
exponent, I think what Val is after is this:
Three words. "Global collapse ensued." Repeated twice; one for each tower.
A slap in the face and an insult to one's intelligence.
A word of advice, quit while you're behind.
Unfortunately I have no choice but to quit, as rhetoric seems to be more important than actual debate here. You, along with many others are simply trying to ridicule the NIST report. I don't assume for a second you've actually done the calculations to confirm or deny Dr Bazant's model? Do you have any empirical data at all that shows global collapse would not ensue? I find it unlikely.
Originally posted by ThroatYogurt
Originally posted by Valhall
AE911 isn't the truth movement. The organization as a whole does not have some kooky theory they are promoting.
Hi Val,