• Quick note - the problem with Youtube videos not embedding on the forum appears to have been fixed, thanks to ZiprHead. If you do still see problems let me know.

The Implosion World paper

Kent1;2722405Sometimes Hoffman comes up with some really bad stuff. Although this isn't half as bad as trying to explain bowed columns by "Refracted Light". [URL said:
http://911research.wtc7.net/essays/nist/index.html#bowed[/URL]

NIST fails to consider an alternative explanation for the bowed appearance of columns in its selected photographs of the Twin Towers: light refraction caused by the layer of hot air adjacent to the Towers. Such atmospheric conditions would refract light in a way that is consistent with apparent distortion of the columns seen in the photographs.

Is this all that the truth movement has to say on this? No calculations or examples? Or has someone actually tried to justify this assertion? Geometrical optics isn't my speciality, but I'm probably more qualified to comment on this sort of thing than on most other aspects of 9/11, so if anyone's ever seen anything with substance on this idea, could they give me a link?

Dave
 
Does anyone know if the DemolitionDave here is the same man as from the dotcom domain ? I once mailed the latter and no response. I would like to know what he says about building 7.
 
Not really that excellent. Its mostly a load of special pleading.

True. You're right. It is exactly that. Hoffman's rebuttal falls on its face in many ways, including that. Just look at the first assertion he takes on: The summary of his argument is that Blanchard puts up a straw man in saying CTers says: "Looks like controlled demolition". Hoffman argues that it can't because of special engineering specific to this incident. But, that's not the point; Blanchard was addressing the legion of conspiracy fantasists who do indeed insist that the WTC collapse looked "exactly" like controlled demolition". We've all seen that argument. Hoffman's criticism is itself a straw man.

Also, Hoffman tries to make the same point he did against PM: It didn't look like controlled demolition because it wasn't a standard controlled demolition, it was instead disguised. Special pleading right there. Ignoring the fact that he constructs a tautology, he provides no proof for this, instead relying on inductive reasoning based on false premises. Blanchard, in contrast, constructs his arguments deductively from his knowledge of industry demolition practices. It is not a logical fallacy i.e. an appeal to authority to point out that one person argues from accepted knowledge and proven principles (Blanchard), and another argues from flawed premises, and that's exactly what's happening here.

As an aside, this line is laughable:

"Blanchard exploits a common misconception -- that because demolitions are usually engineered to proceed from the ground up, all demolitions would necessarily have to be engineered that way."

A "common misconception"? How about an industry standard practice? That's a better term than the straw man Hoffman puts up.

And the other sections... Hoffman's response to assertion #7 not only puts forth 5 of the oldest, most commonly, and most debunked claims without proof, but ends with nothing more than a simple assertion that the evidence "indicate(s) demolition". No supporting argument as to how that does so, let alone why that disputes Blanchard's points. No actual disagreement or disproving of Blanchard's argument, merely a dodge and an assertion. Not a good rebuttal there.

Not to mention the fact he falls for the logical trap of assuming inductive reasoning equals proof, and comes out and says so. Logic 101 courses teach students not to fall for that exact mistake.

Hoffman's rebuttal is sadly lacking in argument. He does not address points, the most he does is raise contrary assertions without any support for the validity of those assertions. He cannot purport as a global fact that which is asserted without support and claim that's a winning argument. His rebuttal is far from excellent; in fact, it's quite poor, terribly lacking in rigor and logic. I do not know why conspiracy fantasists view it with such ardor. It's so lacking.
 
You're using a software engineer as a rebuttal to someone in the demolition business???

Way to go Swing.

Think for a second about what your rection would be if I used a dentist as a rebuttal to Danny Jowenko.

Besides, most of Hoffman's "rebuttals" seem to consist of "oh yeah? Well what about this and this?"

Well the only REAL expert they have in CD is Jowenko, who has clammed up ever since he was led down the garden path by the truthers. I think his pride and reputation have already been soiled enough through his link to the kooks.

So Hoffman will have to do...I guess.

TAM:)
 
Well the only REAL expert they have in CD is Jowenko, who has clammed up ever since he was led down the garden path by the truthers. I think his pride and reputation have already been soiled enough through his link to the kooks.

So Hoffman will have to do...I guess.

TAM:)

I've noticed that Jowenko isn't as talked about these days in Twoofer Land as he used to be.

Might have something to do with the fact that of the three building collapses Jowenko talked about, we debunkers disagree with him on one while twoofers think he's wrong about two.
 
You're using a software engineer as a rebuttal to someone in the demolition business???Way to go Swing.
Think for a second about what your rection would be if I used a dentist as a rebuttal to Danny Jowenko.
Besides, most of Hoffman's "rebuttals" seem to consist of "oh yeah? Well what about this and this?"

If the dentist brings up valid factual points in his analysis and rebuttal then I would accept that as an effective rebuttal. A monitoring expert is rebutting a CD theory. Your point is?

But what you are suggesting is that a person in one industry can not be critiqued at all by another human being unless they are in that industry itself.
Do you really think that is how the world revolves?

I think the entire media and investigative journalism in general might have an issue with your logic. Think about it...what you are saying is everyone is infallible in their industry unless someone within the same industry critiques them. Only politicians could expose corruption within politics and not investigative journalists. Why aren't politicians used to moderate debates?
Only professors within the same field of study could be critiqued by other professors in the field and not the community, students, or administration.
A <insert field here> expert could lie through his teeth and it would be fact unless another expert within the same discipline calls him on it. I'm sorry but your logic of acceptable critiquing standards falls on its face and is apparently only used when someone critiques supporters of the official story. It is called critical thinking and that is not relegated to specific fields.

CHF-Might have something to do with the fact that of the three building collapses Jowenko talked about, we debunkers disagree with him on one while twoofers think he's wrong about two.
Based on your logic, CHF, you can't disagree with Jowenko because your not a CD expert. Way to go, CHF!;)

Blanchard was addressing the legion of conspiracy fantasists who do indeed insist that the WTC collapse looked "exactly" like controlled demolition".
Actually it was the mainstream media and other professionals who stated first that it looked like a controlled demolition.

Hoffman's response to assertion #7 not only puts forth 5 of the oldest, most commonly, and most debunked claims without proof, but ends with nothing more than a simple assertion that the evidence "indicate(s) demolition".
Has any evidence been provided that collapse initiation will lead to global collapse? If not, then the issue is unsettled leaving the door open to alternative theories. Or has any evidence been presented that asymmetrical damage would lead to a symmetrical collapse due to a failure at all critical points?

Blanchard if I'm not mistaken contradicts another CD specialist by stating that it would require vast amounts of explosives to bring the building down when an earlier statement by an CD expert stated that it would not take a large ammount.

"Blanchard exploits a common misconception -- that because demolitions are usually engineered to proceed from the ground up, all demolitions would necessarily have to be engineered that way.
Have you contacted a CD company and asked them how they would have brought the buildings down through CD considering the design of the building?
Better yet, do you think terrorists who planted explosives would do so just like a traditional CD? Somehow I do not think they would.
PROTEC COMMENT: They did not. They followed the path of least resistance, and there was a lot of resistance.
Do you agree with this assessment? I do not and I'm not an expert. It appears in the footage the path of least resistance would have been a tilt and fall over to the side where there is no resistance. But the footage shows it collapsed straight down through many many stories and through the core. In one case a tilt and then straight down.
ASSERTION #3
“But explosive charges (aka plumes, squibs, etc.) can clearly be seen shooting from several floors just prior to collapse.”
PROTEC COMMENT: No, air and debris can be seen pushing violently outward, which is a natural and predictable effect of rapid structural collapse.
I call this "Smart Air" as the air some how choose to ignore some floors when ejecting, in some cases travels several floors down and ejects, etc. etc. I would have thought you would seen the air exiting symmetrically through the windows, not through single points in the building. But I'm not an expert so I can't point that out.
ASSERTION #4
“Several credible eyewitnesses are adamant that they heard explosions in or near the towers.”
PROTEC COMMENT: Maybe they did hear loud noises that sounded to them like explosions, but such statements do nothing to refute scientific evidence that explosives were not used.
Of course he provides no scientific evidence that explosives were not used as Hoffman points out. At one point many moons ago on SLC, this excuse has been parroted as exploding pop machines! LOL! Blanchard ignors the entire body of public knowledge, video, audio, and eyewitness testimony.
ASSERTION #6
“Debris removed from Ground Zero – particularly the large steel columns from towers #1 and 2 – were quickly shipped overseas to prevent independent examination or scrutiny.”
PROTEC COMMENT: Not according to those who handled the steel.
Blanchard's claim that the steel was properly examined, lacking any verification, stands as an empty assertion, and is contradicted by testimony to a hearing by the Committee on Science in the U.S. House of Representatives.

I could go on, but to state this is not an excellent rebuttal to Blanchard is an opinion of course. Cherry picking sections and single statements while ignoring the entire rebuttal is a fallacy and some might argue dishonest.

How excellent can it be when Hoffman is a software designer who knows absolutely nothing about demolition? His calculations were shown to be faulty in one of Dr. Greening's papers:
http://911myths.com/Energy_Transfer_Addendum.pdf
Yes, perhaps, and here is a Dr. Greening being proven wrong by a mechanical engineer: Greening Rebuttal
And what does your point have to do with the rebuttal of Blanchard, the CD observer?
 
I call this "Smart Air" as the air some how choose to ignore some floors when ejecting, in some cases travels several floors down and ejects, etc. etc. I would have thought you would seen the air exiting symmetrically through the windows, not through single points in the building. But I'm not an expert so I can't point that out.

I call these properly designed mechanical floors with louvered exterior walls, which are typically at a minimum of 50% free area. The purpose of these louvers is to either bring in outdoor air for ventilation, exhaust for code or relief for pressurization.....
 
look. You can get the local village idiot to critique a paper on thermodynamics if you like, but it will not likely be taken seriously or worth much. The point here is the same. Without the scientific background or education to make valid comment on a given area, the comments being made are dubious and ill informed at best. Points of logic or common sense, yes those may be worth something...that is all.

TAM:)
 
Has any evidence been provided that collapse initiation will lead to global collapse? If not, then the issue is unsettled leaving the door open to alternative theories. Or has any evidence been presented that asymmetrical damage would lead to a symmetrical collapse due to a failure at all critical points?
Tons. Try Bazant & Zhou, Greening, etc.

Oh, wait, you've already got an answer to that one:
Yes, perhaps, and here is a Dr. Greening being proven wrong by a mechanical engineer: Greening Rebuttal
This "rebuttal," by the way, is nonsense. That might have something to do with it being published in a non-peer-reviewed rag. And anyone can find the holes in Ross's original paper, and his "rebuttal."

Not that you'd be concerned about accuracy.

Have you contacted a CD company and asked them how they would have brought the buildings down through CD considering the design of the building?
Better yet, do you think terrorists who planted explosives would do so just like a traditional CD? Somehow I do not think they would.
Look, it's very simple:

If you say it looks like a CD, then you are comparing it to "traditional" demolitions. But it's not for obvious reasons. No good.

If you say it wouldn't have been a traditional CD, then you can't say that it looked like one, because it wouldn't.

You may pick only one.

Why is it so hard for you guys to understand this?
 
Funny stuff from the rebuttal:

However, because these events display so many obvious characteristics of controlled demolitions, many individuals reject the official story of gravity-driven collapses based on simple intuition.

"imple intuition"... yeah, like common sense. Haven't we been down that road before?

Blanchard avoids discussing most of those features
Yeah, Blanchard's evasion has been noted...:rolleyes:
(the thorough pulverization,
The one and only Steven Jones disagrees:
As we examined the WTC-debris sample, we found large chunks of concrete (irregular in shape and size, one was approximately 5cm X 3 cm X 3cm) as well as medium-sized pieces of wall-board (with the binding paper still attached). Thus, the pulverization was in fact NOT to fine dust, and it is a false premise to start with near-complete pulverization to fine powder (as might be expected from a mini-nuke or a “star-wars” beam destroying the Towers). Indeed, much of the mass of the MacKinlay sample was clearly in substantial pieces of concrete and wall-board rather than in fine-dust form...

It seems that the 9/11 truth community likewise “has been slow to understand” that the WTC dust particles in greatest abundance are the “supercoarse” variety rather than “fine” particles, and that significant chunks of concrete were also found in the WTC rubble.
Source

explosiveness,
GPE, yadda yadda yadda
and rapidity of the Twin Towers' destruction)
Again, :rolleyes:

So how fast should they have fallen?
 
Swing,

I never said that one cannot argue against, or disprove, someone else unless they're in the same field. But it sure is preferable isn't it? Notice that you twoofers never find yourselves in that position, hense your reliance on software engineers and theologists.

By all means you can present a rebuttal to an expert's work BUT...it's gotta make sense. It has to be backed up with solid proof. And if you really know what you're talking about you won't have a problem submitting your work for peer-review so that the rest of the experts out there can see where others went wrong. But again we find twoofers doing nothing of the sort.

Indeed, anyone can oppose what Danny Jowenko says. I don't oppose him because I claim to understand demolitions; I oppose him because his views are contradicted by the rest of the industry. I oppose him because he hasn't the guts to stand by his believe in the form of papers or debates. His silence on the matter is very telling indeed.

But here's the funny part: he's the demolition pro that twoofers refer to most and yet you kooks disagree with him more than we do!
:dl:

Has any evidence been provided that collapse initiation will lead to global collapse? If not, then the issue is unsettled leaving the door open to alternative theories. Or has any evidence been presented that asymmetrical damage would lead to a symmetrical collapse due to a failure at all critical points?

Not that you'll take in any of this...but collapse initiation will indeed lead to global collapse. When the support structure weakens and fails to hold up, say, a 40,000 or 120,000 ton mass, the collapse will not be stopped. You seem to have a great deal of trouble understanding the fact that the rest of the structure could not support such a load in a dynamic state.

As for why asymmetrical damage would lead to a symmetrical collapse...when some supports failed the load was redistributed to other supports which suddenly found themselves having to hold up far more than they were designed to and thus failed a fraction of a second later. At that point you have a massive load just sitting there, so where's it gonna go if not down?

Blanchard if I'm not mistaken contradicts another CD specialist by stating that it would require vast amounts of explosives to bring the building down when an earlier statement by an CD expert stated that it would not take a large ammount.

A small amount at the base might do the job, but a top-down collapse???

Remember that Blanchard was responding to twoofer theories, which would indeed require an insane amount of explosives. You twoofers think the concrete was blasted into dust and beams were tossed around - all thanks to explosives, remember? So yeah, that would take one hell of a lot of explosives.

Have you contacted a CD company and asked them how they would have brought the buildings down through CD considering the design of the building?

No I actually trust the people in the demolition industry so I'm pretty sure they wouldn't do it your way. I suppose that leaves you to call them and see if their answers jive with your theory.

Better yet, do you think terrorists who planted explosives would do so just like a traditional CD? Somehow I do not think they would.

Excuse me? "Terrorists?" Care to identify these terrorists, or are you still not ready to come out and say what you think (ie. "terrorists = government)? You can say it, Swing. We all know that's what you believe.

It appears in the footage the path of least resistance would have been a tilt and fall over to the side where there is no resistance.

And what lateral force was supposed to push it over, Swing? Where's that massive load gonna go if not down?

I call this "Smart Air" as the air some how choose to ignore some floors when ejecting

So why would demolition charges only go off only on those floors? And why do these squibs intensify as the collapse progresses? An explosive would release its energy all at once.

Of course he provides no scientific evidence that explosives were not used as Hoffman points out.

Still not getting that whole burden of proof thing, huh?

Tsk tsk tsk...
 
"Actually it was the mainstream media and other professionals who stated first that it looked like a controlled demolition."

Where? I've never seen any claims of controlled demolition on CNN, MSNBC, Time, NYTimes, Newsweek, etc., but I've seen the claim made countless times on conspiracy fantasy sites like Prison Planet, etc.

And "Professionals"? Yes, but only one in the field of controlled demolition. And only in reference to WTC 7 (he doesn't believe that CD was used on towers 1 and 2; he argues the opposite). And who was only shown video. And who's opinion runs counter to the general engineering consensus.

Other "professionals" include a chemist, a dental engineer... a History and Philosophy of Science Professor... Beware of making an appeal to authority in that manner. You are not citing the areas of knowledge behind the authorities when you do so in the way you just did. Or maybe you are, but you're proving that those areas of knowledge are no better than the average persons, and lacking when compared to professionals in the engineering, construction, and demolitions fields.

"Has any evidence been provided that collapse initiation will lead to global collapse? If not, then the issue is unsettled leaving the door open to alternative theories. Or has any evidence been presented that asymmetrical damage would lead to a symmetrical collapse due to a failure at all critical points?

That's no rebuttal. The 5 oldest, most commonly raised and debunked claims are discussed at sites that many have referred you to on countless occasions. You are not defending them by talking about "leaving the door open to alternative theories", "theories" which require far more deus-ex-machina than anything in what you derisively call the "official story". Harping on whether collapse initiation does not prove anything about free fall, fallling into own footprints, or molten steel. The issue is not unsettled in a manner that allows impossible explanations.

"Blanchard if I'm not mistaken contradicts another CD specialist by stating that it would require vast amounts of explosives to bring the building down when an earlier statement by an CD expert stated that it would not take a large ammount.

Irrelevant. First of all, that's not a charge discussed by either Blanchard or Hoffman; as a matter of fact, Hoffman makes the claim that more than normal were used:

"... the planners would not have been able to exploit the vast majority of each Tower's mass to aid the destruction. Thus they would have had to use much greater quantities of explosives than are typical in demolitions..."
Second of all, two experts differing in degree in regards to the amount that would be necessary in a hypothetical situation is far from proving that any were actually used at all, and it doesn't overcome the logistics problems associated with planting such explosives.

"Have you contacted a CD company and asked them how they would have brought the buildings down through CD considering the design of the building?

Better yet, do you think terrorists who planted explosives would do so just like a traditional CD?"

What are you responding to here? That's Hoffman's quote disputing how Blanchard characterizes CD. And yes, that is a good question - to put to Hoffman. Why would a CD company deviate from standard practices?

Also: I thought the whole argument was that the government planted the explosives, not the terrorists. This is a government plot, isn't it?

"Do you agree with this assessment? I do not and I'm not an expert. It appears in the footage the path of least resistance would have been a tilt and fall over to the side where there is no resistance."

Appeal to incredulity. You're pitting your assesment against a professional in the field, who's leaning on the body of knowledge in that profession. Plus, you're reiterating the Judy Wood tree theory, which ignores the multiple points of failure available in a building. Try addressing Blanchard's point:

"A tall office building cannot be made to tip over like a tree. Reinforced concrete smokestacks and industrial towers can, due to their small footprint and inherently monolithic properties. However, because typical human-inhabited buildings (and their supporting elements) are spread over a larger area and are not nearly as rigid, the laws of gravity cause them to begin collapsing downard upon being weaked or tipped off center to a certain point."
"Quote:
ASSERTION #3
“But explosive charges (aka plumes, squibs, etc.) can clearly be seen shooting from several floors just prior to collapse.”
PROTEC COMMENT: No, air and debris can be seen pushing violently outward, which is a natural and predictable effect of rapid structural collapse.

I call this "Smart Air" as the air some how choose to ignore some floors when ejecting, in some cases travels several floors down and ejects, etc. etc. I would have thought you would seen the air exiting symmetrically through the windows, not through single points in the building. But I'm not an expert so I can't point that out.

Who knows why that happened? Some internal structure may have collapsed faster than others? There's no way I can know for sure. But, how does your criticism support the idea of explosives? I thought the whole argument behind falling-into-own-footprint - and, incidentally, free fall - was the symmetry and evenness of the collapse. Pointing out irregularities and lack of symmetry supports the argument of random events happening within the building, and against the use of explosives. Why would a demolitions team be uneven in detonating planted explosives? Wouldn't that create the possibility of failure?

Of course he provides no scientific evidence that explosives were not used as Hoffman points out. At one point many moons ago on SLC, this excuse has been parroted as exploding pop machines! LOL! Blanchard ignors the entire body of public knowledge, video, audio, and eyewitness testimony.

That's turning the argument on it's head. There is no proof of explosives use. Every single thing that has been presented has been answered, from Jones's "discovery" of thermite to the possibility you laugh off: Large objects hitting the ground. The "entire body of public knowledge" is nothing more than misinterpretations of events. Video and audio analysis do not support the idea that explosives were used, and merely asserting so does not make it true. And eyewitness testimony? Every one that I've seen has proven to either be a quote taken out of context, a made up character, or (in the case of Willie Rodriguez) a real person who honestly believes what he says, but who's accounts are contradicted by others. That's hardly conclusive proof.

"Cherry picking sections and single statements while ignoring the entire rebuttal is a fallacy and some might argue dishonest.

What? The fact that some of us didn't choose to tackle the whole work somehow undoes the accuracy of our analysis? Hoffman is wrong, and the fact that some of us, myself included, didn't comment on each and every fallacy he built doesn't mean we were dishonest; it means nothing more than us being selective about what to comment on. Nothing more. And calling the rebuttals "Cherry picking" is itself dishonest; in my case, I selected specific examples rather than write a huge treatise exhaustively discussing each and every point. Why? Because I got my overall point across in selecting those few, limited examples. The fact that I or others didn't take on the whole work doesn't invalidate a single thing about the flaws we did point out. You cannot invalidate our arguments by pointing out we were selective in what we chose to discuss. The most you can criticize is that we didn't address a point you might consider valid. That's it. What we discussed is valid and accurate. Hoffman's analysis is not excellent, and just on the points I myself raised, not logical or well argued.

Swing... Hoffman's rebuttal is not excellent. It's poorly written and utilizes weak logic. It is much less a rebuttal than it is a complaint, and it doesn't disprove or debunk Blanchard's analysis. Again, I wonder why people cling to it so. It's so flawed.
 
Sorry, CHF. Didn't know you replied; I must've been composing at the same time you were. And sorry everyone else, but there are two replies covering the same ground, albeit in different manners, right next to each other, so that stretch might be a little pendantic and repetative.
 
Sorry, CHF. Didn't know you replied; I must've been composing at the same time you were. And sorry everyone else, but there are two replies covering the same ground, albeit in different manners, right next to each other, so that stretch might be a little pendantic and repetative.

The more the merrier! :)

Who knows...maybe some of it will actually sink in if he has to read it twice.
 
The more the merrier! :)

Who knows...maybe some of it will actually sink in if he has to read it twice.

My guess is, it won't sink in until we have a response written by a dentist.
Swing_dangler said:
If the dentist brings up valid factual points in his analysis and rebuttal then I would accept that as an effective rebuttal.
 
It appears in the footage the path of least resistance would have been a tilt and fall over to the side where there is no resistance.

This is one of the most unbelievable (to me) beliefs many among the truth brigade seem to share. I cannot fathom how anyone with at least a little bit of scientific knowledge (or even a few years worth of playing with Lincoln Logs, Lego and building blocks) can believe the top of the building should have simply toppled over to the side given the square footage and weight of each floor. If the entire building had been made of ice, then yeah, maybe the top floors would have just slid off the bottom floors once they tilted. (Event then it would have been difficult.) However, given the materials, how much friction would there have been where on the floors where the tilt initiated for the top to have simply fallen to the side or slid off?

Given the mass and square footage of each floor, the path of least resistance was actually DOWN, not sideways.
 
If the dentist brings up valid factual points in his analysis and rebuttal then I would accept that as an effective rebuttal. A monitoring expert is rebutting a CD theory. Your point is?


Swing Dangler said:
SGGW, 10000 bombs? Where do you get these figures? Are you a CD specialist? If not, refrain from speaking on the subject.


My point is that you are a hypocrite.
 
It appears in the footage the path of least resistance would have been a tilt and fall over to the side where there is no resistance.

Given the mass and square footage of each floor, the path of least resistance was actually DOWN, not sideways.

it's a fairly simple case of where the center of mass of that upper chunk of building was located. The mass centroid of the collapsing portion stayed within the surface area of the building. So as Cloud well described, that portion of building "tumbles" around it's mass centroid. Had the failure point been much lower on the building and the center of mass moves out and away from the "footprint" then it would topple and tilt.

And no I'm not a dentist....but I did stay at a Holiday Inn Express last night. And this surely ain't my theory. Lo and behold, it's from a structural engineer!!!

Here's the paper that's being peer reviewed:

http://www.civil.northwestern.edu/people/bazant/PDFs/Papers/00%20WTC%20Collapse%20-%20What%20did%20%26%20Did%20Not%20Cause%20It%20-%20Revised%206-22-07.pdf

If you're too lazy to read the text, you can just look at the diagrams starting on page 19.
 
If the dentist brings up valid factual points in his analysis and rebuttal then I would accept that as an effective rebuttal. A monitoring expert is rebutting a CD theory. Your point is?

But what you are suggesting is that a person in one industry can not be critiqued at all by another human being unless they are in that industry itself.
Do you really think that is how the world revolves?

I think the entire media and investigative journalism in general might have an issue with your logic. Think about it...what you are saying is everyone is infallible in their industry unless someone within the same industry critiques them. Only politicians could expose corruption within politics and not investigative journalists. Why aren't politicians used to moderate debates?
Only professors within the same field of study could be critiqued by other professors in the field and not the community, students, or administration.
A <insert field here> expert could lie through his teeth and it would be fact unless another expert within the same discipline calls him on it. I'm sorry but your logic of acceptable critiquing standards falls on its face and is apparently only used when someone critiques supporters of the official story. It is called critical thinking and that is not relegated to specific fields.


Based on your logic, CHF, you can't disagree with Jowenko because your not a CD expert. Way to go, CHF!;)


Actually it was the mainstream media and other professionals who stated first that it looked like a controlled demolition.


Has any evidence been provided that collapse initiation will lead to global collapse? If not, then the issue is unsettled leaving the door open to alternative theories. Or has any evidence been presented that asymmetrical damage would lead to a symmetrical collapse due to a failure at all critical points?

Blanchard if I'm not mistaken contradicts another CD specialist by stating that it would require vast amounts of explosives to bring the building down when an earlier statement by an CD expert stated that it would not take a large ammount.

Have you contacted a CD company and asked them how they would have brought the buildings down through CD considering the design of the building?
Better yet, do you think terrorists who planted explosives would do so just like a traditional CD? Somehow I do not think they would.


I have contacted over a dozen demolition companies and all of them would have brought the buildings down, uh, the way they bring buildings down.

I suspect that the terrorists would plant those explosives so as to maximize the chances of destroying the building.



Do you agree with this assessment? I do not and I'm not an expert.


Yup, you're certainly not an expert. We can assume that you don't have any idea of what you're talking about.


It appears in the footage the path of least resistance would have been a tilt and fall over to the side where there is no resistance. But the footage shows it collapsed straight down through many many stories and through the core. In one case a tilt and then straight down.

I call this "Smart Air" as the air some how choose to ignore some floors when ejecting, in some cases travels several floors down and ejects, etc. etc.


I call this "uninformed drivel."



I would have thought you would seen the air exiting symmetrically through the windows, not through single points in the building. But I'm not an expert so I can't point that out.


Of course he provides no scientific evidence that explosives were not used as Hoffman points out. At one point many moons ago on SLC, this excuse has been parroted as exploding pop machines! LOL! Blanchard ignors the entire body of public knowledge, video, audio, and eyewitness testimony.


I could go on, but to state this is not an excellent rebuttal to Blanchard is an opinion of course. Cherry picking sections and single statements while ignoring the entire rebuttal is a fallacy and some might argue dishonest.


Yes, perhaps, and here is a Dr. Greening being proven wrong by a mechanical engineer: Greening Rebuttal



Gee, Ross "proved" Greening wrong? What about those rebuttals by Greening and Mackey that really did prove Ross wrong?

Oh, right: you ignored them.



And what does your point have to do with the rebuttal of Blanchard, the CD observer?


Jim Hoffman won't be debating anyone who knows anything.
 
Is this all that the truth movement has to say on this? No calculations or examples? Or has someone actually tried to justify this assertion? Geometrical optics isn't my speciality, but I'm probably more qualified to comment on this sort of thing than on most other aspects of 9/11, so if anyone's ever seen anything with substance on this idea, could they give me a link?

Dave
I did some calculations here:

http://www.democraticunderground.co...mesg&forum=125&topic_id=112423&mesg_id=113003

It seems that refraction from hot air could account for no more than about one tenth on an inch of apparent bowing of the exterior walls of the WTC towers. Observed deflections were up to three feet plus or minus 6 inches.
 

Back
Top Bottom