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Originally posted by HowardRoark
Spoken like someone who has never worked construction in a large high-rise.
Admit it you are just pulling this out of your but and you have no idea what you are talking about, do you?
Originally posted by Jeremiah_John
Roark, you can't even answer questions directed to you in a civil manner in a thread you started. You flat out ignore all the ones that are interesting. Then you just run around screaming insults. That NIST link you posted doesn't even open. Then you call the person chicken when he says it can't even download.
You make absolutely no sense whatsoever.
Originally posted by HowardRoark
Originally posted by Hunting Veritas
Jeff King, MIT Engineer / Research Scientist, believes that the WTC towers could not have come down spontaniously.
Take a look at what he has to say about the WTC towers;
Jeff King *.mov 67.3mb
[edit on 5/7/05 by Hunting Veritas]
well, I'm sure that as an electrical engineer, Jeff King can tell us the details of the power distribution in the building before it collapsed, but as a structural engineer, I think his credentials are somewat weak.
Originally posted by Misfit
I take that you have work hi-rise?
Construction for how many years?
Originally posted by HowardRoark
So far I have been insulted, and maligned,
Originally posted by HowardRoark
The point is, I started this thread to solicit comments on the NIST report. There have been a number of attempts to sidetrack the thread into tangents, but no one has come up with any reasonable objections to the NIST report.
Originally posted by HowardRoark
Scared? Chicken Bluck, Bluck, Bluck.
Originally posted by HowardRoark
1) it is impossible for any construction work of any kind to be done without man people knowing about it and knowing exactly what type of work is being done. This includes the engineers, the property management and tenants themselves. Especially if those tenants are involved in any kind of financial work.
2) The engineers know everything that is going on in a building.
3) There was only one freight elevator per building so any use of that elevator has to be carefully scheduled.
The idea that someone could sneak in, or conduct work under false pretenses to install explosive charges is insulting to the intelligence of those killed on 9/11.
"I remember getting a call from the Fire Department commander telling me they were not sure they could contain the fire. I said, you know, we've had such a terrible loss of life that the smartest thing to do is just pull it. And they made that decision to pull it. Then we watched the building collapse."
Larry Silverstein
LeaseHolder, World Trade Center
Originally posted by wecomeinpeace
The second plane hit the tower at around the 78th floor. Being generous, that's about 285m being the absolute highest point from where the steel beams were ejected, even though the ejection of steel beams became much more pronounced further down the collapse. To reach a distance of 76.2m (250ft) makes for 9.99m/s. The crucial thing here is not the distance, it is the impulse required to accelerate an 440Kg (880lbs) object to the speed required (9.99m/s) to reach that distance. Non-elastic collisions are generally assumed to be 10 milliseconds (10^-3s). Therefore a beam is accelerated to 9.99m/s in 10^-3 seconds, which gives an acceleration value of 9990m/s^2. F = m*a. Therefore, the force applied to a beam to accelerate it to 9.99m/s is 4,395,600 Newtons (kgm/s^2).
Originally posted by Kainen
"I remember getting a call from the Fire Department commander telling me they were not sure they could contain the fire. I said, you know, we've had such a terrible loss of life that the smartest thing to do is just pull it. And they made that decision to pull it. Then we watched the building collapse."
Larry Silverstein
LeaseHolder, World Trade Center
That my friends is proof enough that WTC 7 had demolition charges throughout it before 9-11 as it takes too long for them to have placed them on the day of 9-11.
And that means one thing, controlled demolition of WTC7.
That, at least, is FACT.
Originally posted by wecomeinpeace
Originally posted by HowardRoark
So far I have been insulted, and maligned,
On the contrary, Howard, you have baited, insulted and mocked since the very beginning of this thread, and as a reward for your childish behaviour, you were actively defended by a moderator. In addition, you continue to make double, triple and quadruple posts and never receive an admonishment. Your cries of "poor me" ring hollow, my friend.
Reams of information have been presented by members in this thread that directly contradict the NIST report findings, but you conveniently ignore those because you are using a tried and true disinformation tactic and you are sticking to it. Why should people play into your game of trying to debunk a report that is thousands pf pages long, is based on a preconceived conclusion, and is produced by a government agency and thus STENCHFULLY biased?
The evidence of natural collapse in WTC1, 2 and 7 is virtually zero. The evidence of controlled demolition in those buildings is OVERWHELMING.
And so, the ball is not in our court to disprove the NIST report, rather the onus is on you, your handlers, and the criminal government to disprove the fact that the towers were brought down by controlled demolition.
Why won't you debunk these claims? Why won't you debunk the testimony from engineers and physicists that the towers were demolished deliberately?
Originally posted by thematrix
Originally posted by Hunting Veritas
Take a look at what he has to say about the WTC towers;
Jeff King *.mov 67.3mb
Funny how in this video, Jeff King is actualy using the NIST report to prove that the building didn't collapse by itself XD
Originally posted by HowardRoark
I have asked for comments on the NIST report, and have been insulted in almost every single post that has been made on this thread, including yours.
No, reams of speculation and bad science have been presented.
If you have a single, verifiable piece of information that directly contradicts the NIST report, then present it.
There is substantial evidence that the towers collapsed trough the normal progression of the fires and as a result of the structural damage caused by the impact.
This includes clear evidence of severe inward bowing of the exterior columns in the minutes before the collapse. Clear indications that the structure was starting to shift and move well before the global collapse started.
Are you asking me to prove a negative? Nice try.
Well that was the whole point of this thread. If you have a comment to the NIST report, then let's see them.
Too bad it's taking so long, but then ahain, Webtv sucks don't it.
So what are you saying that you have made up your mind and any facts or data that contradict your point of view is B.S. and you won't even look at it?
Why won't you read it?
Scared?
Chicken
Bluck, Bluck, Bluck.
There's a lot of information in this thread to cover, and this is my first post, so for convenience I'll just post a couple things I found interesting with the collapses, and we'll go from there.
First of all I'd like to ask those who buy the official story how the 'pancake collapse' itself started. The official explanation of the cause of the collapses of WTC 1 and 2 were that fires and knocked-out columns provided such a weakening of support that those floors gave out and the buildings then began falling in on themselves, correct?
My first problem with this is, that I would like to have explained to me, is why the buildings collapsed when they did. It's no secret that jet fuel burns very quickly. I believe it's been estimated that the jet fuel in either building had burned up completely between 10 and 20 minutes or so after each of their impacts. At any rate, the fires lost an immense amount of intensity around those times. Afterwards, the fires went on to feed off of office fires; off of furnishings and flammable parts of the building itself, no longer feeding off the jet fuel. It's also no secret that office furnishings burn more weakly than jet fuel, giving off less heat.
If you watch video coverage, the initial clouds are huge, and gray. The smoke is billowing out. That's because the fires are being fed by jet fuel, and we are told they are burning very intensely, which is evident by the amount of smoke and it's color.
Around the times that the jet fuel burns away, there is less smoke coming from the building, and it's much darker. Again, you can look at video for this if you want proof of it, or photographs. Dark smoke, especially when the volume is also decreasing, is a clear indication of weakening fire. At the point of lessening smoke, and it turning black, the fires are losing much of their intensity and of course burning more cooly. It would not make sense for the fires to be hotter at this time, because, to recap once more, the smoke had turned black (indicating an unhealthy burn), there was less smoke, and the fire's initial fuel source had apparently by this time depleted. No surprise; jet fuel burns very quickly.
So the clouds suggest a weakening, dying fire. So what?
Well, which are hotter: healthier, more intense fires fed by jet fuel and puffing big light clouds, or unhealthy, less intense fires fed by office furnishings that cause only smaller, dark clouds? I think it's obvious that a healthy, better-fed fire, will be hotter. It simply doesn't make sense the other way around.
The conclusion we can come to is that the fires were initially hotter than they would be later. That makes sense, right? Well why didn't the towers then collapse while the fires were hotter, at their peak of temperature? Instead, they fall (rather suspiciously reminiscent of demolition) at a time when the fires were cooling off.
Let me make this a little clearer still. Which will be hotter: steel submitted to hotter fire, or steel submitted to cooler fire? Obviously, the steel submitted to the hotter fire would be hotter. If steel was exposed to a fire that was weakening and cooling off, the steel would similarly cool off. It would not make sense for the fire to cool, but the steel to continue heating. That just utterly defies logic and science. And similarly, cooler steel is stronger than hotter steel. It would not make sense for cooler steel to be able to hold more weight than hotter, more malleable steel.
So, again, why did the buildings collapse while the steel was cooling off and not while it was at its hottest? There was no added weight to further stress the steel beams, so added stress was not the problem. It doesn't make sense for steel to continue heating while the heat source itself weakens, and steel closer to normal temperatures holds more weight. So what then? What events specifically trigged the collapse? I've just shown that it is not logical to assume the steel was at its hottest, weakest state, and neither had any further stress been added since the initial impact of the planes.
So why didn't the buildings collapse when the steel was at its hottest, but rather after it had cooled for some time? It seems to me that the effect of heat on the steel had little if anything at all to due with the collapse, or else the buildings would have fallen when the steel was at its hottest. So that's the first problem I'd like to have explained to me.
The second one is why the building did not fall sideways, like a tree with notches cut into its side. After all, the planes did not go all the way through either building. One plane went through diagonally, and the other simply rammed straight into its building, and there's no evidence it even made it past the core columns. The perimeter columns had been knocked out of particular sides on each building, and yet rather than having either building fall sideways into the lack of resistance to gravity provided by the lack of support columns, both buildings fall straight down as if all perimeter columns were simultaneously knocked out. There was no reason for all columns on the damaged floors to all give out simultaneously, especially taking into account what I've just discussed about the steel not even being sufficiently heated. It cannot be argued that the buildings did fall sideways, because they simply did not. Admittedly, there was slight tilting during the first couple of seconds, but the buildings still fell down and in on themselves, as any video of the collapse or photo of Ground Zero after collapse will show.
There must be some reason for why the building did not fall sideways, and further why the tilting mysteriously stopped after the first few seconds of collapse.
The third problem is the temperatures of the fires. We were told the temperatures were extremely high; enough to sufficiently weaken the steel, enough to cause a collapse. Industrial steel, such as used in skyscrapers, can hold several times it own weight (the exact number of times in the case of the WTC is not available as far as I know, but if it is, feel free to inform me).
No skyscrapers have ever fallen as a result of fires, which I'm sure you've already discussed here. There have been fires that have been testably more intense than those at the WTC, and that have lasted much longer, but did not result in any sort of collapse. Whole floors have been gutted by fires in some cases, and still no collapse. You can find examples of other such skyscraper fires here: 911research.wtc7.net...
When I say other fires have been testably more intense, I mean there have been other skyscraper fires that have had fires that accomplished more because of their greater intensity than the fires at the WTC buildings were able to accomplish. For example, in some of the fires mentioned in the link above, there was extensive window-shattering from the intense heat of the fires around the windows. The fires spread to other floors in some of those examples, as well.
By contrast, at the WTC buildings, there is no video or photographic evidence of any such widespread shattering of glass from heat. There are windows shattered from debris and the initial impacts, etc., but not from heat, or at least not many. This alone sets the fires back to the 600º C or below range, immediately. Beyond 600º C, windows begin shattering extensively from intense heat. Again, we did not see that at the WTC buildings. If the fires were as hot as they were claimed to have been, we would have easily seen the same widespread window shattering such as that in the other skyscraper fire cases.
Also, the fires did not spread beyond the floors that they started on. Fire going down the elevator shaft doesn't count either, I'm afraid, because the other examples of skyscraper fires being referenced did not have their fires spread to other floors by means of the elevator shafts. They were simply much hotter, and spread between floors themselves. And again, those fires didn't cause enough damage to the steel structures to collapse the buildings, so why would weaker fires in the WTC skyscrapers cause them to collapse? Let alone while the fires were dying, and let alone in a fashion that suggests all columns gave way at the same time!
So there are a few things for you guys to explain, those of you who buy the official story. A demolition would be able to explain all of it, obviously, but I suppose that's just a coincidence. So I'll start into this discussion I suppose with those points, if it's alright with you guys. As far as the NIST report, it won't load on my computer for some reason, but seeing as how it's not in its final form yet (as if they'll have some corrections to make or something), and apparently 'open to public comment', I'm skeptical of how concrete their explanations are from the start anyhow.
Originally posted by bsbray11
If anyone's a chicken it's you, I'm afraid. I posted evidence that contradicted the NIST report, and you're refusing to debate me by repeatedly telling me to read a 392-page report.
As you say, what's a matta? Scared? Chicken? cluck cluck (never been outside of the city, I see)?
Now you can get on to explaining to me what was wrong with what I posted. Go ahead and critique it now, because I've read the report and what I have stated directly contradicts the report and proves that it's flawed. You can't just resort to name-calling now, Howard, because I'm telling you I've read it and I'm contradicting it. So now you have to prove me wrong.
There's a lot of information in this thread to cover, and this is my first post, so for convenience I'll just post a couple things I found interesting with the collapses, and we'll go from there.
First of all I'd like to ask those who buy the official story how the 'pancake collapse' itself started. The official explanation of the cause of the collapses of WTC 1 and 2 were that fires and knocked-out columns provided such a weakening of support that those floors gave out and the buildings then began falling in on themselves, correct?
My first problem with this is, that I would like to have explained to me, is why the buildings collapsed when they did. It's no secret that jet fuel burns very quickly. I believe it's been estimated that the jet fuel in either building had burned up completely between 10 and 20 minutes or so after each of their impacts. At any rate, the fires lost an immense amount of intensity around those times. Afterwards, the fires went on to feed off of office fires; off of furnishings and flammable parts of the building itself, no longer feeding off the jet fuel. It's also no secret that office furnishings burn more weakly than jet fuel, giving off less heat.
If you watch video coverage, the initial clouds are huge, and gray. The smoke is billowing out. That's because the fires are being fed by jet fuel, and we are told they are burning very intensely, which is evident by the amount of smoke and it's color.
Around the times that the jet fuel burns away, there is less smoke coming from the building, and it's much darker. Again, you can look at video for this if you want proof of it, or photographs.
Dark smoke, especially when the volume is also decreasing, is a clear indication of weakening fire.
The conclusion we can come to is that the fires were initially hotter than they would be later. That makes sense, right? Well why didn't the towers then collapse while the fires were hotter, at their peak of temperature? Instead, they fall (rather suspiciously reminiscent of demolition) at a time when the fires were cooling off.
So, again, why did the buildings collapse while the steel was cooling off and not while it was at its hottest? There was no added weight to further stress the steel beams, so added stress was not the problem. It doesn't make sense for steel to continue heating while the heat source itself weakens, and steel closer to normal temperatures holds more weight. So what then? What events specifically trigged the collapse? I've just shown that it is not logical to assume the steel was at its hottest, weakest state, and neither had any further stress been added since the initial impact of the planes.
So why didn't the buildings collapse when the steel was at its hottest, but rather after it had cooled for some time?
www.cbsnews.com
High temperatures stopped firefighters from reaching the upper floors where the fire was strongest. Malfunctioning water pumps and a lack of fire extinguishers inside the building also complicated the job for firefighters
www.cbsnews.com
Military helicopters doused one of Venezuela's tallest buildings with water Sunday, bringing under control a blaze many feared might cause the tower to collapse.
Some of the burning fuel shot up and down the elevator shafts, blowing out doors and walls on other floors all the way down to the basement. Flash fires in the lobby blew out many of the plate glass windows. Fortunately, there were not enough combustibles near the elevators for major fires to start on the lower floors.
Outside the building, a flurry of activity was beginning. Personnel of the Fire Department of the City of
New York (FDNY) were several blocks away, investigating a gas leak at street level, and observed the
aircraft impact. Within a minute, FDNY had notified its communications center and requested additional
alarms for the WTC. A Port Authority Police Department (PAPD) unit had reported to its Police Desk
that there had been an explosion with major injuries. By 8:50 a.m., the first fire engines had arrived, and
an Incident Command Post had been established in the WTC 1 lobby. An Emergency Medical Service
(EMS) Command was established 3 min later. More and more reports of damage, injuries, and deaths
flooded the communications channels, and knowledge of the extent of the catastrophe was emerging. At
8:52 a.m., the first New York City Police Department (NYPD) aviation unit arrived to evaluate the
possibility of roof rescue, but reported they were unable to land on the roof due to the heavy smoke. At
8:55 a.m., the firefighters entering WTC 1 began climbing the stairs (Figure 2–6). Their objectives were
to evacuate and rescue everyone below the fires, then to cut paths through the fires and rescue all those
above the fires.
What specific part of the report are you contradicting? Can you cite a page number?
First of all I'd like to ask those who buy the official story how the 'pancake collapse' itself started. The official explanation of the cause of the collapses of WTC 1 and 2 were that fires and knocked-out columns provided such a weakening of support that those floors gave out and the buildings then began falling in on themselves, correct?
No, actually the gist of it is that the impact damage, combined with the loss of fireproofing on the trusses and columns and the building fire, caused the collapse.
Actually, the caloric value (or fuel load) of office furnishings, paper, etc. is in the same range as jet fuel.
The color of the smoke is not a direct corelation with the temperature of the fire. What about the indications that the fire was intensifying in a number of areas in the NIST report. There are clear photo sequences that show the fires growing in intensity.
Even if the fires were cooling off, the structural damage was already done. The loss of effective support from any beams, trusses or columns that were buckled or twisted by the fire, would have to be added to the loss from those that were broken, cut and bent by the impact. The effect was cumulative.
Steel and concrete takes a while to heat and take a while to cool off. Once a floor slab gave way (see the report for the pictures of the slabs falling inside the building), the damage started to snowball. Creep is slow but steady.
pg1
NIST NCSTAR 1 (Draft)
Federal Building and Fire Safety Investigation of the World Trade Center Disaster
pg4
Disclaimer No. 3
Pursuant to section 7 of the National Construction Safety Team Act, the NIST Director has determined that certain evidence received by NIST in the course of this Investigation is “voluntarily provided safety-related information” that is “not directly related to the building failure being investigated” and that “disclosure of that information would inhibit the voluntary provision of that type of information” (15 USC 7306c).
In addition, a substantial portion of the evidence collected by NIST in the course of the Investigation has been provided to NIST under nondisclosure agreements.
pg4
Use in Legal Proceedings
No part of any report resulting from a NIST investigation into a structural failure or from an investigation under the National Construction Safety Team Act may be used in any suit or action for damages arising out of any matter mentioned in such report (15 USC 281a; as amended by P.L. 107-231).
pg13
On the morning of September 11, 2001, Americans and people around the world were shocked by the
destruction of the World Trade Center (WTC) in New York City and the devastation of the Pentagon near
Washington, D.C., after large aircraft were flown into the buildings, and the crash of an aircraft in a
Pennsylvania field that averted further tragedy. Three years later, the world has been changed irrevocably
by those terrorist attacks. For some, the absence of people close to them is a constant reminder of the
unpredictability of life and death. For millions of others, the continuing threats of further terrorist attacks
affect how we go about our daily lives and the attention we must give to homeland security and
emergency preparedness.
Within the construction, building, and public safety communities, there arose a question pressing to be answered: How can we reduce our vulnerability to such attacks, and how can we increase our preparedness and safety while still ensuring the functionality of the places in which we work and live?
pg33
Immediately following the terrorist attack on the World Trade Center (WTC) on September 11, 2001, the Federal Emergency Management Agency (FEMA) and the American Society of Civil Engineers began planning a building performance study of the disaster. The week of October 7, as soon as the rescue and search efforts ceased, the Building Performance Study Team went to the site and began their assessment. This was to be a brief effort, as the study team consisted of experts who largely volunteered their time away from their other professional commitments.
p34
NIST does not have the statutory authority to make findings of fault or negligence by individuals or organizations. Further, no part of any report resulting from a NIST investigation into a building failure or from an investigation under the National Construction Safety Team Act may be used in any suit or action for damages arising out of any matter mentioned in such report (15 USC 281a, as amended by Public Law 107-231).
p44
The scarcity of physical evidence that is typically available in place for reconstruction of a disaster led to the following approach:
Accumulation of copious photographic and video material...
[...]
Establishment of the baseline performance of the WTC towers,
[...]
Conduct of four-step simulations of the behavior of each tower on September 11, 2001. Each step stretched the state of the technology and tested the limits of software tools and computer hardware. The four steps were:
1. The aircraft impact into the tower, the resulting distribution of aviation fuel, and the
damage to the structure, partitions, thermal insulation materials, and building contents.
2. The evolution of multifloor fires.
3. The heating and consequent weakening of the structural elements by the fires.
4. The response of the damaged and heated building structure, and the progression of structural component failures leading to the initiation of the collapse of the towers.