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Originally posted by turbofan
Don't be foolish 'exponent'. The Penthouse falling excuse does not account
for fire bringing down all remaining columns simultaneously.
It has already been argued that if the Penthouse columns failed first,
they should have:
1. Pulled connected beams down with the failed support column 79
2. Broke away cleanly leaving the reaminder of the building intact.
Please view the breakdown completed by REAL A's & E''s at AE911Truth.org before debating a topic like this.
Originally posted by superleadoverdrive
As an interested observer of this thread, I get the impression that some people are so earnest in accepting and defending the government's authority as truth they overlook the fact that truth should be the authority, not the government.
It seems obvious to most who research 9/11 that if nothing else there were extensive efforts made in covering up and concealing evidence, so the truth is not known.
Since the truth is not known, we must push forward with good science. It is apparent that bsbray believes in good science and is a true skeptic.
A good researcher, is not a proponent of a particular point of view, but remains cognizant of the fact that trials finding support for or refuting a hypothesis are both valuable in our quest for understanding. Seeing and believing the data, both in support of or refutation of a hypothesis, is the primary goal in scientific inquiry.
Originally posted by exponent
I don't understand what you are saying in this paragraph. You acknowledge that the high heat output was for calibration, but make it seem as if NIST changed their mind?
They did not, but here is the link you will need to learn about their fire simulation:
wtc.nist.gov...
Originally posted by bsbray11
You said you don't think NIST could have done a better job with their investigation.
All I said: prove it.
You are having such a hard time with this.
Is it surprising I am having a hard time?
I am not even foolish enough to attempt it without pointing this out, I also have to point out the part of your quote you apparently missed:
A formal proof or derivation is
...
The notion of theorem is not in general effective, therefore there may be no method by which we can always find a proof of a given sentence or determine that none exists. The concept of natural deduction is a generalization of the concept of proof.
emphasis mine.
Backing up your claims would be the sensible thing to do. Posting crap like this, like jthomas always does, is just going to result in 60 more pages of thread.
Nothing is going to resolve this thread
Yes how could materials possibly come together just after the collapse of 220 acres worth of skyscraper? Why it is as if both skyscrapers generated significant amounts of debris containing these materials!
Seriously, this argument is illogical to begin with and perhaps indicative of your need for more serious care.
How exactly do you think the materials came together?
Drywall was probably the most abundant material in the towers, and is primarily calcium sulphate.
Of course you want me to prove it came together, which is of course impossible.
More Fear, Uncertainty and Doubt from someone who doesn't seem to require any evidence at all when making claims
You already admitted once that your answers were just speculation. Why do you change your tune now?
Perhaps you should read my posts more carefully. Some of them were speculation, some were not.
I'm sorry, but when I pointed out you invented theories that made no sense, you seem to think they require disproving, but now you claim this of me, and that I need to prove things. Which is it?
I believe we do know what really happened
the evidence strongly favours it.
If I'm a Truther, then you're a Nazi. If you get to make up your own rules, so do I.
(emphasis mine)
I had no idea you were such an offensive human being. I'll be reporting this of course.
Right, none of that makes any sense to me either but I have no more faith in your competence just because you realize something I figured out on my own when I was 10. No offense to Christians, believe what you want.
None of it makes any sense but you figured it out on your own? You are losing the ability to even write a coherent paragraph.
Derogatory is not Discrimination. They are two different words meaning two different things.
I have never used 'twoofer' except in this context.
Like I said, that's akin to someone claiming that atheists push the christian label on people who hold christian beliefs.
Who says the building is supposed to be doing work? NIST certainly doesn't, I certainly haven't, could it be you are inventing criteria for complaint?
In physics, mechanical work is the amount of energy transferred by a force acting through a distance.
Now you take your inability to answer my questions as me putting on like I'm better than everybody else I guess. No, my understanding of 9/11 is just better than yours.
I very much doubt that, why is it you are unaware of the answers to your questions if your knowledge is so vast?
So let me get this straight. You are unable to answer a simple 25 element problem to any greater accuracy than a 20% variation, but you somehow expect NIST to be able to simulate a 47 storey office building
Originally posted by turbofan
You mean the NIST report that doesn't submit their data for peer-review?
The NIST report that admits free-fall, but can't explain why?
The group of "engineers" at NIST that use ZERO as the rate of conduction
for steel in their computer simulation in order to make it fail?
Nice research "exponent". Try explaining why the building fell at near free-fall from top to bottom and fell AT free-fall for 2.5 seconds.
Try explaining why NIST has not released the entire simulation and why
they used zero for the thermal conduction of steel.
Originally posted by exponent
The possibility of an inside job can still fit precisely in the cracks and holes left in the full story by the questions on the main page that remain unresolved to this day.
Yet another positive claim. We don't know that an 'inside job' can fit in these cracks because you nor anyone else has yet to come up with a hypothesis.
How can you claim that something that doesn't exist, fits in cracks you cannot explain, in a theory you don't understand?
No, I don't think I know better than him. I just happen to know what he actually said. You apparently do not, because this was your response to me:
Originally posted by exponent
The lobby was not destroyed in WTC7 until the collapse of WTC1
Originally posted by bsbray11
Not according to Jennings' testimony. Unless you are just changing it on your whim now to fit with your already-formed opinions.
One would expect you to provide evidence of his "testimony" to support this, but apparently you do not remember it well enough.
Just for laughs, here is a video of the lobby of WTC7 after the collapse of WTC2, and before Barry Jennings reached it. He did not actually escape the building until after the collapse of WTC1.
video.google.com...
Way to weasel out of defending what you were originally saying. We have been here before. You will later claim there were no loud explosions indicative of a demolition. When I keep telling you these explosions are just that.
If you believe they are indicative of a demolition, you must have evidence that they are
And that it does not matter if they set a "charge" off 5 hours before the total collapse ensues, or only 5 seconds, that building is still going to fall. The only effect is to confuse simple-minded people, or people with an attention span of only 30 seconds. Ie your typical American.
It does not matter? You don't think perhaps that if a firefighter saw the damage from this charge, they would know what it was?
Do you often allow such horrifying possibilities in your plans to destroy a building for no reason whatsoever?
I mean really, you are speculating harder than anything I have posted in this thread, despite having a big chip on your shoulder about how you want proof. It's just sad to watch.
I have not accepted anything specific. I am working with ideas I myself consider very vague and am unhappy with. However, they still make a much better case in the end than what NIST has offered, simply because NIST also didn't prove anything in their report.
So what you're saying is your apparently unqualified and uneducated opinion about the structural behaviour of WTC7 is more convincing to you than a thorough analysis by several hundred if not thousand licensed and practising engineers?
You have made it clear that you are not interested in an answer, rather continuing speculation
Once again I point out my challenge. For someone with the resources of a university or college at your disposal, you should have already solved my little puzzle shouldn't you?
Is a 25 resistor network somehow a more complex simulation project than a 600ft high building with multi floor fires and structural damage? Of course it isn't, so why haven't you completed my challenge?
Originally posted by bsbray11
reply to post by jthomas
When are you going to post something of substance, jthomas?
Originally posted by bsbray11
No? They data from the "calibration" was 100% legitimate but didn't match the amount of heat they assumed had to be present across a whole floor for a collapse to initiate.
And they've also stated in their own FAQs that they disagree with pancake theory and find it unlikely that all the trusses on a given floor would fail at the same instant. Can you show me where they reconciled either of those contradictory admissions with their final hypothesis?
Yes, those are the same tests. Funny none of that data was evidence for their final hypothesis, but just used to calibrate further computer simulations with elevated parameters, isn't it? Oh, no wait, you think that's a legitimate application of the scientific method.
Determining realistic heat/temperatures from the fires based on how widespread they were, where they were at, etc., is the sole exception to not looking at videos to force theoretical data. The fire data is the only data that can't be derived from the structural documents.
I said they would have to judge that based on what was seen in photos/videos, that this would be the sole exception of having to look for this data as opposed to just pumping it out through formulas.
You are claiming it is impossible to prove they couldn't have done a better job. I think you're right. No disagreement about that from me.
The statement you bolded is common sense. It doesn't change whether or not you have proven anything. Only re-confirms that not everything can be proven. I guess this is another appeal to blind faith? This isn't church.
Couple this with your earlier admission that your answers are just speculation and I think you're finally coming to the appropriate realization.
There was also hydrogen all through those buildings, but you're not going to tell me therefore a hydrogen bomb could have formed in the debris pile, are you? Don't be so obtuse.
That is why you have no hope answering the question yourself. I am perfectly correct in simply stating it is still an unanswered question. Making stuff up doesn't count.
So you don't think it's reasonable for me to believe something without evidence or proof, but on the other hand, it's fine for you to believe something unquestioningly without any evidence or proof.
You just said you couldn't prove your claim, now you are accusing me of not accepting evidence.
You can't keep yourself straight for 2 lines of post that are right next to each other.
I'm going to go ahead and say anything you can't proof with evidence, is speculation. Call me what you like.
I never claimed you had to disprove my case. I don't even have a specific case. I am only asking positive evidence for things, to resolve the 20 questions.
I know what you believe.
I wish I could do the same for you calling me a "truther" repeatedly, but no mods will hear it.
You mean you're now losing your ability to read, too? I'll let you use your "context clues" to figure this brain-stretcher out
Then you admit you only use the term to be derogative. Just like when I call you a Nazi. But no, seriously, Nazis are good people too!... (not..)
Not at all the same. I don't have a "belief" here. I am asking for evidence. If that puts me in any derogative group, then you need to reconsider where your own priorities lie. Defending your ego, or defending truth?
I just realize that the only way to accomplish this is with a controlled demolition. You know, literally pushing everything out of the way with some type of explosion. For which I can provide witness testimonies (from a police officer no less), seismic data, etc.
Thanks again for demonstrating you do not understand the basic physics we are discussing.
I am asking how WTC7 free-fell for 2.25 seconds while the building was still "collapsing" -- which means it would have to have been doing work. Free-fall by definition means all the kinetic energy of the falling building is being preserved.
I didn't say my knowledge was "vast," only that it's better than yours. The reason is because I realize these questions have not been answered. You have blind faith in speculation and conjecture. I consider that ignorant.
One is a real-life problem, the other is not. Again, you intentionally made that circuit problem with ridiculous tolerances. Setting up your own pins to knock down. You have not shown how your example relates to the same margins of error NIST would have had to work with, going off structural docs alone.
The "cracks" or "holes" in my metaphor are the unanswered questions. It is still possible for them to be resolved with answers that do not fit your current beliefs. Thus my metaphor. I'm sorry that you had such trouble interpreting it, I'll try to use simpler metaphors next time or maybe explain them in full detail right after I use them.
Dig in! Be sure to watch the whole thing, and try not to puke in your mouth or blow a fuse trying to dismiss everything you hear in real-time.
Right, he was trapped inside the building. The "lobby" you are showing is just the entrance to the building, looking lengthways down the street, from the outside. Way to debunk anything. Just for laughs, you were right.
The existence of numerous sounds of explosions in the first place is evidence. Evidence of real events that really happened. Explain them.
I'm glad you are phrasing this crap as questions instead of making positive assertions, since the implied argument is non-sequitur anyway. Look it up and study the concept if you don't know what that means.
You assume there was no reason simply because you are personally unaware of one. Not surprising.
You mean it's sad to respond to because you know everything I say is reasonable. I'm not pushing a case on you. I'm asking for answers to questions. You are having a real hard time with this.
You can make whatever glorifying assertions you want of NIST, but at the end of the day, you still cannot even use their report to address simple questions of basic physics, and have to resort to all number of logical fallacies and baseless claims to get out of them. They designed the report exactly so this would happen. You assume because you don't see anything in the report about conservation of energy, especially in regards to the free-fall time, then, well, it must not matter, because these guys would surely know! Nothing but blind faith. It is a question based on one of the most simple laws of physics in existence. No work can be done without energy. "Work" and "energy" are both technical terms. And yes, they obviously apply, if you only understand what they mean.
You mean take the time to draw it in PSPICE and tell you what you already know? Yeah, you got me. Maybe you can explain how assuming a 10% margin of error on so many discrete components over and over relates to any specific margin of error in WTC7's structural docs.
You know just as well as I that all I would have to do is draw the circuit in a computer program and hit "run."
It isn't an unsolvable problem in the least. But it is a totally irrelevant example that you made up yourself, and haven't shown to be related to WTC7 in any way. I would be an idiot for honoring it and putting on like it would mean a damned thing anyway when it doesn't.
Now I want you to think about this double-think. You keep saying you have proof, you have evidence, you have evidence, but I won't accept it, it's my fault for not listening to your evidence, blah blah blah.
But then you use this example to try to demonstrate that NIST can't be blamed for the margins of error and inaccuracies in their report, so that I must accept these inaccuracies as valid anyway. I'm not even going to comment, I just want you to think about that.
Originally posted by jthomas
Originally posted by bsbray11
When are you going to post something of substance, jthomas?
Your game is up, bsbray11.
You can chew on this, posted today. There's a new video on David Chanler's claims
Originally posted by bsbray11
Originally posted by jthomas
Originally posted by bsbray11
When are you going to post something of substance, jthomas?
Your game is up, bsbray11.
Not this time, I guess.
You can chew on this, posted today. There's a new video on David Chanler's claims
Seriously, you need a vacation. I know you just spelled the guy's name wrong, but other than that I hardly even know who he is and don't give a damn what he thinks.
Originally posted by exponent
NISTs theory does not require heat present across a whole floor
nor would calibration tests be expected to match the condition of the towers.
Yet more evidence to support my theory you've never bothered to read the report in full.
And they've also stated in their own FAQs that they disagree with pancake theory and find it unlikely that all the trusses on a given floor would fail at the same instant. Can you show me where they reconciled either of those contradictory admissions with their final hypothesis?
You have shown no contradiction. NISTs initiation theory is not one of pancaking, they disagreed with its use as an initiator.
Once the collapse has begun, it would not be possible to avoid some element of 'pancaking' but NIST says nothing of this.
NIST’s findings do not support the “pancake theory” of collapse, which is premised on a progressive failure of the floor systems in the WTC towers (the composite floor system—that connected the core columns and the perimeter columns—consisted of a grid of steel “trusses” integrated with a concrete slab; see diagram below). Instead, the NIST investigation showed conclusively that the failure of the inwardly bowed perimeter columns initiated collapse and that the occurrence of this inward bowing required the sagging floors to remain connected to the columns and pull the columns inwards. Thus, the floors did not fail progressively to cause a pancaking phenomenon.
Yes, those are the same tests. Funny none of that data was evidence for their final hypothesis, but just used to calibrate further computer simulations with elevated parameters, isn't it? Oh, no wait, you think that's a legitimate application of the scientific method.
Yes, and so do you
I said they would have to judge that based on what was seen in photos/videos, that this would be the sole exception of having to look for this data as opposed to just pumping it out through formulas.
Of course I am sure you will claim that they did something inappropriate, but not provide evidence for it. If you understand anything in my post, understand this. You are doing exactly what you are accusing others of doing, making positive claims without showing any evidence whatsoever.
So, you ask me to prove something you don't believe can be proven. Considering you are acting as a judge, you have essentially asked me to do the impossible.
I have explained, slowly and methodically why NISTs method was the best.
You seem completely ignorant of the actual contents of my post, and convinced that you are making devastating intellectual arguments, when you are just repeating questions answered pages ago. Do you want me to just go back and requote what I said then?
There was also hydrogen all through those buildings, but you're not going to tell me therefore a hydrogen bomb could have formed in the debris pile, are you? Don't be so obtuse.
There was also oxygen, but you're not going to tell me that that oxygen just happened to be attracted to the aluminium. You don't expect me to believe that it somehow combined with the surface to form an oxide layer eh?
Can you prove to me that the oxygen coating that aluminium was not provided by secret NWO oxygen cannons?
The evidence exists in the report of the chemist who investigated the actual material, and in the knowledge of other chemists about the mechanism behind this material. Your denial of these simple facts does not mean I also deny them.
How you think being unable to prove a claim equates to you not accepting evidence is beyond me. Truly I have no idea what you think this proves or what point you are trying to make.
Considering I posted the answer to Question 4 and you entirely skipped it. Did I or did I not answer that question?
So why did you claim that Barry Jennings may have felt an explosion which was part of a hidden controlled demolition arrangement within WTC7? Do you have any evidence to suggest this?
I know what you believe.
Then why did you make a false claim?
Of course they won't hear it, because you accused me of being part of a genocidal and racist regime, and I accused you of promoting a controlled demolition theory. The two are not comparable, and if you think they are you should seek medical help.
In other words you realise what you said makes no sense, but you cannot admit it
I have never used the term except when describing people.
Honestly do you think twisting my words in an attempt to implicate me will do any good? It makes you look foolish and nothing more.
If I had an ego to defend, I would use an identifiable nickname, or crow about the number of ATS points I have, or anything. I don't care
One of these statements then must be a lie
Originally posted by jthomas
You forgot that it's David Chandler's video that you posted in your OP, under "question" #6:
WTC7: NIST Finally Admits Freefall (Part I)
www.youtube.com...
I guess we should not be surprised how convenient it is for you to "forget" that, eh?
Amazing.
Originally posted by exponent
I am asking how WTC7 free-fell for 2.25 seconds while the building was still "collapsing" -- which means it would have to have been doing work. Free-fall by definition means all the kinetic energy of the falling building is being preserved.
This definition clearly excludes the work done by the gravitational force
Gravity accelerates all objects equally, so any drop of any object equates to work done by gravity.
You have obviously tried to change the definition you're using half way through an argument, which is silly at the least and dishonest at worst.
Please do not assume that I am unaware of the concept of work. I am more than familiar with the physics of the collapse, as I have explained it to you many times.
I didn't say my knowledge was "vast," only that it's better than yours. The reason is because I realize these questions have not been answered. You have blind faith in speculation and conjecture. I consider that ignorant.
I shall point out that under this definition, a no-plane theorist would intrinsically be granted better knowledge than you, as they believe in more unanswered questions.
Firstly, the tolerances have nothing to do with it! Even if the resistors are within 0.001% of their specification, the maximum output variation will be greater than this, and the difficulty of simulating the potential outputs will be exactly the same.
Secondly, I have already pointed out that NIST did not have just the structural documentation to go off, they in fact had 4 major areas of uncertainty, with far more complexity than this trivial problem.
I set bsbray a problem to solve as he would have NIST behave, and he refuses to even attempt it, instead slandering, distorting and accusing me!
The "cracks" or "holes" in my metaphor are the unanswered questions. It is still possible for them to be resolved with answers that do not fit your current beliefs. Thus my metaphor. I'm sorry that you had such trouble interpreting it, I'll try to use simpler metaphors next time or maybe explain them in full detail right after I use them.
Or perhaps you could explain how a controlled demolition theory fits in with an order relating to a plane in a different state. Just a thought?
Dig in! Be sure to watch the whole thing, and try not to puke in your mouth or blow a fuse trying to dismiss everything you hear in real-time.
So you can't actually find anything to support your claim then. If you could you would quote it, instead of pasting a full video.
Perhaps if you watched the video for more than 5 seconds you would notice that indeed the cameraman did enter WTC7. Perhaps you could pay more attention to Mr Jennings' account and you would know that the damage is mentioned upon his exit from the building.
Apparently it's ok when you lie about this person's account
You don't seem to be able to, and you are tacitly admitting here you have no evidence to suggest controlled demolition. I can list tens if not hundreds of plausible alternative sources for the sounds.
Why it's as if you don't read my posts properly at all!
You assume there was no reason simply because you are personally unaware of one. Not surprising.
Ah, and you're assuming there is a reason without being aware of it right?
Oh but wait, requiring evidence of something is a sceptical position, and assuming a particular condition is a proponents position. So why are you doing the latter?
Actually your responses are becoming more and more delusional, to the extent that you are becoming incapable of distinguishing what I have said from what you have invented. If you were my friend I would be telling you to go to the doctors office at this point.
I have already explained this many times, I even gave you an example so you could illustrate how it could be done. You failed to carry out this example.
The equations NIST use are dependent upon the laws you claim they did not use. There is no way around this and you have once again posted no evidence other than your misguided accusations.
You mean take the time to draw it in PSPICE and tell you what you already know? Yeah, you got me. Maybe you can explain how assuming a 10% margin of error on so many discrete components over and over relates to any specific margin of error in WTC7's structural docs.
I already have, errors compound.
Originally posted by bsbray11
Originally posted by jthomas
You forgot that it's David Chandler's video that you posted in your OP, under "question" #6:
WTC7: NIST Finally Admits Freefall (Part I)
www.youtube.com...
I guess we should not be surprised how convenient it is for you to "forget" that, eh?
Amazing.
Oh, wow. Everything is so different now, why didn't I realize it before? It was David Chandler reading questions to NIST! David Chandler!!
- "NIST method was not just wrong, it was fraudulent."
- "They had to declare free fall out of bounds and try to cover up the evidence."
- "They (NIST) dutifully conjured up a 5.4 second measurement to match."
- "They found the disappearance time and when out of their way to pick an artificially early start time exactly 5.4 seconds earlier. This they compared with free fall time."
- "... if he (John Gross of NIST) wasn't so occupied covering his tracks."
- "The 5.4 second he measured just happens to match exactly the theoretical prediction of computer model. That kind of precision is incredibly rare. This has all the characteristic of drylabbing, manipulating the data to match a predetermined outcome."
- "The irrelevant 5.4 second is still defended in the wording."
- "So free fall is now official dogma. How are they going to handle all the ramifications of that inconvenient fact?"
- "free fall went from an impossibility ... to be consistent with their fire-induced hypothesis."
- "They adopted an alternate bullying tactic, cover it with a lie, and walk away."
Apparently, we are supposed to accept those claims on faith and as those from an "objective" physics teacher.
So there you have it, a series of claims and accusations and no substance or explanations. All David Chanler has actually demonstrated - the free fall period of 2.25 seconds - was acknowledged and re-calculated by NIST and included in the final draft. Nothing changed the 5.4 second time span calculated by NIST nor did Chandler give any reason to change it. He affirmed it yet then declares it "irrelevant" with no reason why it is or should be.
www.abovetopsecret.com...
Originally posted by exponent
Let me get this straight, despite me spending hours writing replies to you, trying to address the criticisms and face the challenges you have presented, you refuse to draw a circuit and in your own words, "hit run"?
In order to analyse this circuit iteratively, you will have to
a) reduce the number of elements by aggregating them and perhaps
i) running a sensitivity study
b) reduce the number of simulation runs by testing only a few values per resistor (proportionate to the output sensitivity)
c) Make assumptions about values you have no solid proof for