An Architect Reflects on 9-11
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I guess that September 11, 2001, will be one of those days you will remember exactly where you were and what you were doing. Not unlike when the Challenger blew up, when President Kennedy was shot, or when Pearl Harbor was attacked. I think that all these dates had such a profound affect on American history that anyone of a knowing age will never forget just exactly how they felt when they heard the news.
My wife and I had been married only a year and a half, and our oldest daughter was only 8 months old. I had been granted my Registration as an Architect a few months before, on July 2nd. I was in the middle of teaching a structural preparatory course for the Architectural Registration Exam (ARE), a course that I had developed and had been teaching for a number of years. At that time our classes were held on Saturdays, and the Saturday class before was quite normal and uneventful. Tuesday, the 11th was an election day for the City of Phoenix, and I was planning to go to an election night party for several of our Council Members. So I got up at 6:00 AM as I did every work morning and turned on the local news for my morning briefing of the events of the last day. Very shortly after it started, BAM!!!! One of the towers at the World Trade Center in New York was on fire. The reports were so sketchy and contradictory; it was hard to figure out just what had happened. I stopped getting ready for work and watched in astonishment and amazement. Not long after tuning in, flying in from the left side of the screen, a commercial plane hit the second tower. WOW!!! I could not believe my eyes. Then we were informed the Pentagon had been attacked. Was this the beginning of World War III? Shortly after that news, I sat there watching as the south tower collapsed, 56 minutes after it had been hit. The north tower followed suit shortly there after. Then a report of Flight 93, that had been hi-jacked and missing crashes into a field in Pennsylvania. I left for work, numb, fearful, would I see my wife and baby girl at the end of the day? What the hell would happen next?
When I arrived at work, a small TV had been tuned into the news and this was the topic being talked about both on TV and in the office. The immediate reports feared tens of thousand had been killed in the collapse of these two towers. Sensory overload. It was impossible to process all the information coming out at that time. By the end of the day, numbness gave way to the surreal. The FAA grounded all flights. There was an eerie quietness to the skies for 3 days as air traffic had been completely grounded. Even in a large City, like Phoenix, the quiet skies were noticeable and disconcerting. The election night gathering was somber, and in the background on most every TV around was continuing coverage of the day's events. We spent Saturday's class talking about the towers collapse, never did cover what we were supposed to that week. One of the things we discussed was why the buildings fell on themselves and not toppled over the side when they were hit. Since I essentially grew up as an Architect, that question at first sounded strange to me. Knowing how buildings are designed, we never want the building to topple over in a catastrophic event. That would make a single collapse even a larger catastrophic event. Now hundreds of thousands of lives would now be imperil as a building tips over. Imagine what the kill radius of a building almost 1,400 feet would be. The standards of localized and controlled collapse go back to standards that I studied in 1983 as I first prepared to take my ARE. These were standards that buildings were supposed to be designed under for at least several years earlier, at the very least. A week after that later, Phoenix sent their FEMA team to ground zero, and on it was a Structural Engineer I knew, Tom Wandrie, a plan reviewer with the City of Phoenix. Tom has been the building official for the City of Phoenix the last few years. He spent a week there during the clean up of ground zero.
Weeks later, as the casualty numbers and other information were becoming clearer, it became possible to do some analysis. Based on what had been said, I did some math to find out that on any given workday hour, those two towers housed around 50,000 people. Some 2,700 people lost their lives when the buildings collapsed. About 500 of those were EMS workers that went into the building after the catastrophic event began. The death toll for those OCCUPIED buildings was only about 4%. I do not want to devalue any of the lives lost that day, but it is amazing to me, that 30-year-old technology had been so efficient that it was able to evacuate like 96% of the buildings' occupants before catastrophic collapse. That is why the initial news reports were projected tens of thousands of deaths. Subsequent studies and reports have shown that the majority of deaths occurred to those trapped above the impact floors, as the two large jets had severed their means of escape.
In the week leading up to this anniversary, I watched many programs on the History Channel, Discovery Channel, and others. Since these events, my wife will tell you, I have gotten very bent out of shape when I heard people like Rosie O'Donnell claim that the collapse of these towers was "an inside job" because they fell on themselves. Are you S#%!*$#@ me! What the hell training is she making this judgment off of? She is nothing more than an entertainer. Where is her engineering background? I got even more inflamed as I watched some of these "conspiracy theory" programs that was aired in the week leading to this anniversary. One of them had an "Architect" on, Mr. Richard Gage spouting off. Far be it from me to call out another "Professional", but after hearing him, my first question is WHO IS PAYING YOUR BILLS? He sounds like one of those "hired guns" prostituting his profession for monetary gain. One of the first things taught in our training (and tested, at least when I took the test) was the knowledge and understanding that steel loses strength, and will deform, when exposed to heat. That is why the building code requires structural steel to be thermally insulated. Steel does NOT have to be exposed to melting temperatures to deform and fail. There are countless test from Underwriters Laboratories, Factory Mutual, and Ohio State University that proves this. These are all agencies that have completed fire testing on assemblies. So where does Mr. Gage get off with contradicting science? Does he know something that the rest of the world does not know? Is he trying to tell us that he is an Einstein? Bless my britches and kiss my grits.
I know this is a very emotional issue. If I had a loved one perish in these events, I sure would not want their memory dishonored. Let us not dishonor these lost lives by perpetuating lies for our own benefit. As I said in a previous hub just because someone is Registered, that does not necessarily mean that they are correct. Check other opinions, if this one stands alone, opposite other professionals, then maybe this is not the most accurate. What we need to take away from the events of September 11, 2001, is that American technology is still superior, even at 30 years old. That is the only reason that the initial reports of tens of thousands dead fail to come to pass. That is the true legacy of the American spirit.
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Dan, I worked as an apprentice blacksmith for a year and a half right out of high school. Steel goes through a series of molecular changes as it is exposed to higher and higher heat. Tiny imperfections in the steel (in all steel) become pronounced and can cause the steel to crack, bend, or shatter depending on stresses, heat, and pressure. Hmmm, like the weight of a building on steel girders being heated by burning jet fuel. When these goofballs like Charlie Sheen and Rosie O'donnel speak, they bring out their own predjudices and ignorance. They aren't interested in the truth - they are interested in hating George Bush.
From my thermal knowledge working in a cement plant with akiln running at 2600 deg.f. I do not know how beams would be thermally insulated in a big fire. My knowledge is that the heat would have to be dissipated off. I do not see this in a big fire from jet fuel. The beans would heat up with the fire. And the concrete reinforcement would lost from the re-bar being heated up also. The heat would not be dissipated off.
Keep on hubbing!
Great Hub! I too remember and it had a profound impact on this old soldier, Good work on dispelling the conspiricy concept. Soon to be your fan..
The molten steel in footage and photographs is not being accounted for in your digression. Also you are forgetting building 7 which completely eludes planecrash-fuel-fire rationale.
Moreover, the scientific article with thermitic evidence in the rubble composition is also very incriminating.
You also have no leverage or authority whatsoever for being an architect, an enraged on at that.
The whole world suffered the aftermath of war and tyranny and thus some profited at the expense of those 2700 lives plus many in the wars that followed. Halliburton, CACI, Blackwater, and others made a living out of 9-11.
Here are several images showing molten steel at the site: http://www.uwgb.edu/dutchs/Graphics-Other/PSCI/Wtc
http://9eleven.info/moltenstreamthermate.jpg
http://www.camelotcorp.com/Fires-burned-and-molten
and the article I cited about the incriminating evidence of thermite: ~http://www.bentham-open.org/pages/content.php?TOCP/2009/00000002/00000001/7TOCPJ.SGM
another one
http://physics911.ca/pdf/2004/grimmer_thermite.pdf
and another one
http://www.springerlink.com/content/f67q6272583h86
and another one concerning sismology: http://bb.domaindlx.com/alexjames9999/chapters/wtc
It is not the specialists role to say what is the truth, it is evidence's.
I am sorry, I do not want to attack you personaly. I am only trying to present evidence. Sometimes people do not want to believe what is known.
Here is my response: http://unendingevolution.wordpress.com/2009/10/14/
It is not the specialists role to say what is the truth, it is evidence's.
I am sorry, I do not want to attack you personaly. I am only trying to present evidence.
Sometimes people do not want to believe what is known.
Dan and Roger - I have absolutely no knowledge or expertise in structural engineering, (other than Bunkers I've built when I needed them). I would point out though that OBL did have an Engineering background but even with that background and the building plans available, the total collapse was considered a bonus not the primary objective, (He stated so in the interview he gave after the attack.) He had rather hoped the damage of the attack would have stood as a monument to it on the New York Skyline for the years it would have taken to fix the structures. Where all this fits in the current argument I do not know, what I do know however is that the attacks took place and were funded , planned and executed by Al Quieda, a force of evil on our planet that requires the same fate we hand out to a bumble bee or mosquito that stings or bites us, we need to find them and kill them. - Hmrjmr1 Out
My background is Biochemistry but that does not define me. The important thing is I had the fortune to learn a bit about critical thinking. Even when an insect stings, the best way to prevent it from happening again would be to... understand the cause. To kill a bee is just like painting a target on yourself causing others to attack most of the times, because of the pheromones released. Generally US paranoia about national security naturally leads ironically to national and international insecurity. Anyway, the evidence is presented and I am sure there is a lot more. The jury is out. As you might have realized I am not a proponent for either side, rather I am trying to make each side notice gaps of knowledge characteristic to them. I bet any of you haven't imagined that such scientific articles have been produced in the wake of this terrible event. Only thing really relevant is to make it impossible to repeat itself by knowing its cause as best as possible.
"what I do know however is that the attacks took place and were funded , planned and executed by Al Quieda, a force of evil on our planet that requires the same fate we hand out to a bumble bee or mosquito that stings or bites us, we need to find them and kill them."
Hitler also called soviets a force of evil and used such to promote fascism, and eventually, total war. War is the worst way to try to solve problems.
Dan,
Great article. Once a conspiracy theory is started and particularly believed, it is fruitless to confuse the believer with the FACTS. As an electrical engineer who for the predominant part of my career in the aluminum industry I know for a FACT that if aluminum is exposed to an open flame thermite will result. I am sure there was some aluminum in the towers so if no thermite (oxidated aluminum)
had been found it would be miraculous.
I am not sure what Roger proposes in our struggle with radical islamist. I don't think a dinner invitation will solve the problem. We ARE in a KILL OR BE KILLED SITUATION!!!!!!
Tom said
"I am not sure what Roger proposes in our struggle with radical islamist. I don't think a dinner invitation will solve the problem. We ARE in a KILL OR BE KILLED SITUATION!!!!!!"
Damn, that is quite an ignorant statement to be made. You shouldn't be proud. More Americans died in the Iraq war than in 9-11. And nobody cares about the plus one million Iraqi civilians killed during this war. Your xenophobic affirmation is very unchristian if you are one. If you are not one you should be ashamed for not being able to use critical thinking, or even common sense for that particular matter.
The Iraq war resulted in increased hatred across the world towards US oppression. There has never been so much will to react against US especially by these oppressed people (sometimes in a violent manner) Plus, the war was mainly all about oil. The Iraqi oil reserves and future Afghan pipeline.
Watch this documentary:
http://www.sott.net/articles/show/194794-Video-The
and please just do one thing: think!
Even the freefall time of the towers has been ignored by you all, also the vertical columns were not there in ground zero (if thermite was not used). Everything was, at ground zero, so to speak. Also the impossible-to-keep-secret is not a very strong argument. Nazis kept the concentration camps secret for years until Germany lost WWII.
Even though history doesn't perfectly repeat itself, it progresses in rhymes.
Dan,
I thank you for your courtesy in your responses.
I do not appriciate being called ignorant by Roger. I was raised as a Christian. I was also raised by a father who volunteered to go into the Navy in January of 1942 at the age of 33. My brother was 8, and my sister was 4 at that time. Dad knew he would never be drafted but he believed in defending America. So he did a four year hitch in the South Pacific, and I was born one year to the day after he finally returned home.
I do not relish war but I am not stupid enough to believe that it can always be avoided.
Ok what about this man's statements?
http://www.youtube.com/watch?v=daNr_TrBw6E
Major General Albert "Bert" N. Stubblebine III, head of all intelligence says:
Pentagon NOT hit by a plane
WTC 7 brought down by explosives
Media in America is controlled
Still in denial?
Human creativity is limitless in solutions and directions.
Opting for war is a true failure in realizing the potential of human creativity.
The easy way out.
It is easier to explain violations to normal human conduct as you deem "conspiracy" than to physical principles. The towers fell through the path of most resistance. And yet they fell with a speed that is consistent with freefall. They had no matter in the way providing resistance. The supporting structure was not conferring resistance. There was a major fire in 75 in WTC north tower and the strucure did not even waver. I am not saying that jet fuel weakens steel. What I am saying is that It is more probable that you were duped by your government (the neocons), than physical laws were violated such as fall speed of objects in a path where mass is.
Even the NIST scientists said that there is a problem in the official report because the buildings fell with freefall speed:
http://www.youtube.com/watch?v=V0GHVEKrhng
9-11 deserved over 100 million dollars for investigation (like Collumbia and Challenger Shuttles) and it only deserved 15 million.
There is footage still apprehended, illegal wars on oil bearing countries and future oil pipeline countries, planted witnesses, trillions of dollars shifted hands when the towers were hit, more than a million dead since then and I and a very large group of citizens of the world want a real investigation.
I am still looking at the pictures of molten metal you don't believe in.
Well I don't believe in the NEOCON artists.
It is also very difficult to believe that a guy in a cave orchestrated the biggest sneak attack since pearl harbour...
Unless you believe everything your government and corporate news tell you.
Well if you think your president in the US is the utmost and all knowing authority you better think again. I was not, and the General, I believe, was not referring to the president.
Dig in this document to know what I mean:
http://www.antiwar.com/orig/lind1.html
You also did not respond about the fire of 1975, so no one is perfect.
As for the steel, why was it all shipped to China to be melted in such a hurry? Why destroy the scene of a crime? Or a at least the evidence?
There are a lot of whys that I still have.
Do you think everything in this page is pure nonsense?
Possibly I will find incorrections just like with you.
It is very strange there is even an engineers and architects group trying to show just how fake the official report is. Have you anything to say about them? I would be truly interested to know, as you share the field of work. Here is their website:
I at least have less emotional connection to the attacks because I am not an American. I am not biased by mass media as I do not watch television and neither biased by the US government. My concern is especially with the implications 9-11 had in millions, maybe billions of lives in the world after the fact.
Which is undeniable.
Roger,
Since you are obviously paranoid and even hiding your identity by having your avitar linked to a paranoid conspiracy website I would sugget you find a good psychiatrist and get yourself some good meds.
Your paranoia is undeniable.
Sorry but I am not famous enough to have a wikipedia entry to link to. I also don't rely on internet networking like myspace and others...
By the way it is my site. What do you have against it. I really would like yo know point by point if you find something in it that requires correction?
Also ad hominem attacks do nothing to favor your rationale.
Roger,
My attack was not ad hominem it was the opinion of a clinical psychologist that I know. They would not make a true diaganosis since they never had you in a session. They gave an opinion as to your mental state, and a statistical analysis that I expressed in my previous post. The symptoms gave them the opinion that their analysis was accurate within a 70% probability.
Your obvious inability to accept facts from experts in a field is typical delusional behavior.
I find it pointless that my background is found relevant when what is on the table are things that have nothing to do with my personal life. Anyway here is my youtube profile: http://www.youtube.com/rogeriopfm
Modern Psychiatry is also wrong in many aspects. Studies have been made that show how most of the population would be considered insane when diagnosed by current standards in a session. Everyone thinks different. Deal with it. I am not violent, by contrary as you might have noticed. I am just an idealist and that freaks the hell out of you. And I question what most deem unquestionable. Sorry about being so annoying by that but you have to be prepared to get questions if you are talking about an unresolved dispute.
So the "problem" that your psychiatrist friend has found just from some lines of text is not one that implies a real threat to society.
Ok I am ready to accept the molten metal is not self evident in the photographs I presented as I am not a steel specialist. However a friend of mine that is a steel expert says that there was molten steel. If we only had the thermal readings of an infra-red camera...
I still have the questions about:
Metal shipped to China in a hurry to be melted;
AE911 members, there are more of them (the physics teacher is one in 952 people trained in the realms of Physics, Architecture and Engineering of the "conspiring lot" as you might deem them to be);
Still have no response about the fire of WTC in 1975;
As for the free-fall I would endearingly like to see your actual measurements. Or are they also closed knowledge?
I hope the above questions can deserve your comments.
"did you forget that he waged a nine-year war and defeated the USSR in Afghanistan?"
Yes, but not without good old uncle Sam's help at the time.
Cheers
Before the 1975 fire had the structure been weakened by having a plane crash through it? Leaving a large gaping hole?
"Before the 1975 fire had the structure been weakened by having a plane crash through it? Leaving a large gaping hole?"
I ask the same about building 7 then.
Indicators of a delusion
Psychology
The following can indicate a delusion:
1.The patient expresses an idea or belief with unusual persistence or force.
2.That idea appears to exert an undue influence on his or her life, and the way of life is often altered to an inexplicable extent.
3.Despite his/her profound conviction, there is often a quality of secretiveness or suspicion when the patient is questioned about it.
4.The individual tends to be humorless and oversensitive, especially about the belief.
5.There is a quality of centrality: no matter how unlikely it is that these strange things are happening to him, the patient accepts them relatively unquestioningly.
6.An attempt to contradict the belief is likely to arouse an inappropriately strong emotional reaction, often with irritability and hostility.
7.The belief is, at the least, unlikely, and out of keeping with the patient's social, cultural and religious background.
8.The patient is emotionally over-invested in the idea and it overwhelms other elements of his or her psyche.
9.The delusion, if acted out, often leads to behaviors which are abnormal and/or out of character, although perhaps understandable in the light of the delusional beliefs.
10.Individuals who know the patient will observe that his or her belief and behavior are uncharacteristic and alien.
Yes Rogerio delusional people are often a danger to themselves or others.
Thank you so much for that hub,. It has put many demons to rest inside myself. I was horrified at rumours of 'inside jobs' etc., but I had no engineering or architectural knowledge to rebuff the stupid people. Thank you again
I am British and so i have a valid reason to comment. even if i wasn't the terror unleashed by the USA after 911 means that everybody has a right and duty to take an interest n this matter. I have seen numerous documentaries about 911 and I am totally convinced that 911 was an inside job by elements of the US establishment.
Look at Bush's face in the primary school. Looked like he knew something. please see Loose Change, terrorstorm, In plane sight and many others for a factual background.
The owner of this page is obviously a right wing neo con and his patriotism cannot countenance that his beloved US of A would sink so low but history is full of inside jobs, pearl Harbour. reichstag fire, Gulf of Tonkin, Northwoods etc etc
Even in London they were having a terror exercise on the EXACT same say as the 7/7 attacks. a duplicate of US modus operandi
Americans are too often blind to their governments evil ways
One m ore small item, you claimed that 96% of the occupants escaped was due to the wonderful design of office blocks but fact is first attack was at 8.45 and most people had yet to arrive
Terrorists may have chosen a later flight to ensure buildings would have been full
Paul and Roger are far more objective and the facts a lot more convincing to support their points ... and there is all the other evidence!
Just read the hub "The true story of 911 in Plane Site | World Trade Center & Pentagon Attack Conspiracy of 11-Sep-01 by andromida
It IS a vast cover-up and many were involved ... maybe you don't even want to know all the facts?
Why would that be?
Too much of a patriot, not enough critical thinking ability, or a bit of both?
Building 7 is a perfect example that it was previously set up for controlled demolition just like the two towers - one of the Bush boys is in this business. Now, why is the fact that his company is known to have arranged it news to you?
Lot's of people are STILL asking questions ... like in this TV ad here:
http://www.youtube.com/watch?v=Qo9K9nGDvvQ&feature
What's your agenda for letting criminals like Dick Cheney walk free?
Dan, regarding WTC 7, are you telling me that you can't recognise a demolition when you see one? Surely an engineer like yourself can recognise one? Since when does fire bring down a building at free fall speed in its own footprint? Building 7 began its collapse at free-fall acceleration for over 2 seconds over a distance of more than 100 feet – equal to at least eight stories.
Do you agree with the following statement?:
"For the observed straight-down collapse to happen, an immense network of heavy steel columns and beams would have had to be forcibly removed and more than 400 structural-steel connections would have had to fail every second, evenly, all across each of the eight floors involved. These failures had to occur ahead of the collapsing section – and could not be caused by it – because a freefalling object cannot exert force on anything in its path without slowing its own fall."
Here is testimony from former NYPD officer, Craig Bartmer regarding the demolition:
“I walked around it (Building 7). I saw a hole. I didn’t see a hole bad enough to knock a building down, though,” said Bartmer. “Yeah there was definitely fire in the building, but I didn’t hear any… I didn’t hear any creaking, or… I didn’t hear any indication that it was going to come down. And all of a sudden the radios exploded and everyone started screaming ‘get away, get away, get away from it!’… It was at that moment… I looked up, and it was nothing I would ever imagine seeing in my life. The thing started pealing in on itself… Somebody grabbed my shoulder and I started running, and the shit’s hitting the ground behind me, and the whole time you’re hearing “boom, boom, boom, boom, boom.” I think I know an explosion when I hear it… Yeah it had some damage to it, but nothing like what they’re saying… Nothing to account for what we saw… I am shocked at the story we’ve heard about it to be quite honest.”
Emergency Medical Technician, Indira Singh said,
“After midday on 9/11 we had to evacuate that because they told us Building 7 was coming down. If you had been there, not being able to see very much just flames everywhere and smoke – it is entirely possible – I do believe that they brought Building 7 down because I heard that they were going to bring it down because it was unstable because of the collateral damage,” said Singh.
He went onto say that it was the fire department who said WTC 7 had to be brought down.
Kevin, Mcpadden, an airforce reserve medic said he heard the countdown:
http://www.youtube.com/watch?v=PgAJ4sKUp8g
Larry Silverstein, owner of WTC 7, said the decision was made to "pull it". I don't know if that can be interpreted as anything but a demolition:
http://www.youtube.com/watch?v=7WYdAJQV100&feature
A safety engineer and accident analyst for the Finnish National Safety Technology Authority (Dr. Heikki Kurttila) stated regarding WTC 7 that “The great speed of the collapse and the low value of the resistance factor strongly suggest controlled demolition.”
A Danish professor of chemistry (Dr. Niels Harrit) said, in a mainstream Danish newspaper, “WTC7 collapsed exactly like a house of cards. If the fires or damage in one corner had played a decisive role, the building would have fallen in that direction. You don’t have to be a woodcutter to grasp this” (translated)
More information on this:
http://www.infowars.com/the-911-whistleblowers/
The FEMA report stated:
“A liquid eutectic mixture containing primarily iron, oxygen, and sulfur formed during this hot corrosion attack on the steel"
More information:
http://www.infowars.com/building-7-implosion-the-s
You say that no detonator fragments were found. How do you know that? How do you know the evidence wasn't destroyed? You know the steel beams were quickly taken to a scrap heap? Evidence can be destroyed.
That's all for now.
"No, I haven't seen personally a controlled demolition but I sure know how to spot one. If you can't see that WTC 7 was a demolition, then I doubt your expertise.
Name one other building made from steel, but the towers that are claimed to have fallen from heat stress, in the case of history that has fallen from heat stress. Many buildings burn for much longer, one instance 20 hours, and they still stood.
What does it matter what angle the camera was showing the collapse of WTC 7?
Irreversible deterioration doesn't mean a collapse or else other building in history would have fallen due to heat stress. Also, the fire was limited to a few floors.
"For the observed straight-down collapse to happen, an immense network of heavy steel columns and beams would have had to be forcibly removed and more than 400 structural-steel connections would have had to fail every second, evenly, all across each of the eight floors involved. These failures had to occur ahead of the collapsing section – and could not be caused by it – because a free falling object cannot exert force on anything in its path without slowing its own fall."
"It is in error because it only allows for the premise that the columns and beam were removed forcefully; the error is that this premise fails to account for basic physics and material strength. This building was constructed in a manner that protected the structure from deterioration because of fire for a minimum of 1 hour. In my industry this is referred to as 1 hour construction. WTC 7 burned for over 8 hours, well in excess of the 1 hour minimum the building was designed for."
You are missing the point. The point is that for it to have fallen THE WAY IT DID, that is "more than 400 structural-steel connections would have had to fail every second, evenly, all across each of the eight floors involved. These failures had to occur ahead of the collapsing section – and could not be caused by it – because a free falling object cannot exert force on anything in its path without slowing its own fall."
In order for a building to fall with absolutely no resistance caused by the lower falls, the above premise must have occurred. Did you notice any resistance in the collapse? The other floors below should have slowed the collapse but it didn't. Why?
It's obvious that it was at free fall speed. 8 stories in 2 seconds? Even the NIST concedes it was a free fall. Name one other building but on 9-11 that has fallen free fall due to heat stress?
What about the symmetry in which it fell?
Quote from this site:
http://www.infowars.com/building-7-implosion-the-s
"The overall building mass fell uniformly and with almost perfect symmetry through what should have been the path of greatest resistance – some 40,000 tons of structural steel. According to structural engineer Kamal Obeid, this requires a precisely-timed, patterned removal of critical steel columns – which office fires, a gradual organic process, simply cannot achieve."
Do you agree or disagree with this structural engineer?
The NYPD officer said that he recognises an explosion when he hears it. Do buildings explode due to heat stress?
You say my youtube videos don't prove anything and that anyone can say anything, you say, but you automatically believe the structural engineer from the FEMA team that was he says is true.
Here is the FEMA report about the hot corrosion attack on the steel. Does a regular fire do that?
http://wtc.nist.gov/media/AppendixC-fema403_apc.pd
"The United States Geological Survey (USGS) used NASA thermal imaging of the WTC rubble pile surface to document hot spots with extreme temperatures of almost 1,400° F"
Come one...due to an office fire? As for thermite burning out quickly, it depends on the amount used and the ratio.
If we are going to have a debate, you need to address ALL my points and not dodge the ones that are inconvenient. What did Larry Silverstein mean when he said the decision was made to "pull it" in reference to WTC 7?
You also didn't address this fact:
"A safety engineer and accident analyst for the Finnish National Safety Technology Authority (Dr. Heikki Kurttila) stated regarding WTC 7 that “The great speed of the collapse and the low value of the resistance factor strongly suggest controlled demolition.”
Is he talking rubbish?
I am going to include many others here:
"Former Director for Research, Director for Aeronautical Projects, and Flight Research Program Manager for NASA’s Dryden Flight Research Center, who holds masters degrees in both physics and engineering (Dwain A. Deets) says:
“The many visual images (massive structural members being hurled horizontally, huge pyroclastic clouds, etc.) leave no doubt in my mind explosives were involved [in the destruction of the World Trade Centers on 9/11].”
A prominent physicist, former U.S. professor of physics from a top university, and a former principal investigator for the U.S. Department of Energy, Division of Advanced Energy Projects (Dr. Steven E. Jones) stated that the world trade centers were brought down by controlled demolition
A U.S. physics professor who teaches at several universities (Dr. Crockett Grabbe) believes that the World Trade Centers were brought down by controlled demolition
An expert on demolition (Bent Lund) said that the trade centers were brought down with explosives (in Danish)
A Dutch demolition expert (Danny Jowenko) stated that WTC 7 was imploded
A safety engineer and accident analyst for the Finnish National Safety Technology Authority (Dr. Heikki Kurttila) stated regarding WTC 7 that “The great speed of the collapse and the low value of the resistance factor strongly suggest controlled demolition.”
mechanical engineer with 20 years experience as a Fire Protection Engineer for the U.S. Departments of Energy, Defense, and Veterans Affairs, who is a contributing Subject Matter Expert to the U.S. Department of Energy Fire Protection Engineering Functional Area Qualification Standard for Nuclear Facilities, a board member of the Northern California – Nevada Chapter of the Society of Fire Protection Engineers, currently serving as Fire Protection Engineer for the city of San Jose, California, the 10th largest city in the United States (Edward S. Munyak) believes that the World Trade Center was destroyed by controlled demolition.
The former Chief of the Strategic and Emergency Planning Branch, U.S. Department of Energy, and former Director of the Office of Engineering at the Public Service Commission in Washington, D.C., who is a mechanical engineer (Enver Masud) , does not believe the official story, and believes that there is a prima facie case for controlled demolition of the World Trade Center.
An architect, member of the American Institute of Architects, who has been a practicing architect for 20 years and has been responsible for the production of construction documents for numerous steel-framed and fire-protected buildings for uses in many different areas, including education, civic, rapid transit and industrial use (Richard Gage) disputes the claim that fire and airplane damage brought down the World Trade Centers and believes there is strong evidence of controlled demolition (many other architects who question 9/11 are listed here)"
I mean, come on! How much more evidence do you need?
Look at the many other opinions here!
http://www.infowars.com/the-911-whistleblowers/
You asked why it must have been an inside job? As a pretext for war, of course.
I've written on this subject:
http://clairelesleyevans.wordpress.com/2010/11/01/
http://clairelesleyevans.wordpress.com/2011/01/06/
If you have any questions, like why the United States would give millions of dollars to the Taliban months before 9-11 and negotiate a pipeline deal with them up until August 2001, feel free to ask.
You are silly to say that just because I haven't seen a controlled demolition in person, I shouldn't be able to identify one. If someone has never been to a tennis match in person, can they not recognise one on TV?
I have, as a South African, interest in what America does because what it decides, affects the rest of the world. They tend to invade countries illegally. 9-11 is a global issue and is not an issue only Americans should dwell on.
"I would contend your claim of symmetrical collapse, but if you are referring to the center falling first, that would be a result that the center core was one of the main structural support systems along with the outside walls, placing most of the load on the center core. Your claim is no surprise, because I see you are attempting to equate these buildings falling to a tree being chopped down, but that too is also erroneous. Tree branches are supported by only a trunk and do not have supports at the perimeter like the towers had, that is why they fall differently."
You are now assuming the center core was severely damaged. The fires were randomly scattered around the building and not much fire was visible. We don't seem to be talking about the same building here. I'm referring to WTC 7, not the towers. So your comment here:
"Do the math, at that rate you are tell me that there were only 4,400 connections in Tower 1 (11 second fall), and 3,600 connections in Tower 2 (9 second fall). Your math is not even balanced for the two towers, and my experience would dictate there would be far more connections in a structure of that type, so if your facts are wrong here.." doesn't apply. Just to make it clear, I'm talking about WTC7 at the moment.
According to FEMA, there were twenty-four huge steel support columns inside WTC 7 as well as huge trusses, arranged asymmetrically, along with approximately 57 perimeter columns. (FEMA, 2002, chapter 5.)
So if was arranged asymetrically, how did it fall symetrically? Doesn't that mean the all the steam beams gave way at the same time?
This seems to be what FEMA considered as well.
"The specifics of the fires in WTC 7 and how they caused the building to collapse [“official theory”] remain unknown at this time. Although the total diesel fuel on the premises contained massive potential energy, the best hypothesis [fire/damage-caused collapse] has only a low probability of occurrence. Further research, investigation, and analyses are needed to resolve this issue. (FEMA, 2002, chapter 5;"
Is FEMA wrong or right?
Here is what the media said:
2. A New York Times article entitled “Engineers are baffled over the collapse of 7 WTC; Steel members have been partly evaporated,” provides relevant data.
How does steel evaporate due to fires?
Experts said no building like it [WTC7], a modern, steel-reinforced high-rise, had ever collapsed because of an uncontrolled fire. (Glanz, 2001; emphasis added.)
So where did you get the idea that the building in Phoenix, which you are suggesting is also steel reinforced and modern, collapsed?
The link to the New York Times article dated November 29th, 2001
http://www.nytimes.com/2001/11/29/nyregion/nation-
Here are expert witnesses that claim to have seen pools of molten steel.
http://truthandshadows.wordpress.com/2010/12/08/ma
"Your comment of no resistance is just as bogus. There is no such thing as “no resistant” falling. Friction always exists, be it by air, or materials rubbing against other materials. Again, are you claiming the laws of science were suspended on that day?"
By this, I mean there was no resistance from the floors below. In order for this to be the case, the floors would have had to have given way before the collapsing section reached it. If it had been caused by the collapsing section, it would have slowed the fall. It did not happen. The building collapsed in 6.6 seconds.
Here is the Chapter 5 of the FEMA report to which the appendix relates:
http://www.fema.gov/pdf/library/fema403_ch5.pdf
I'm not sure where you saw "pyroclastic gasses" being mentioned. Please refresh my memory? I looked through Appendix C and couldn't find any reference to that.
"As for your other citations and quotes, try reading my previous responses. As far as Architect Gage goes, I will say that unless he took a different educational path than most Architects (such as I did) he will not be able to make that type of analysis, as most Architects fail to get that type of structural training while in school."
Why do you only single out one or two people? A Dutch demolition expert says WTC 7 was demolished. Is he not qualified to claim that?
"The fire triangle that I learned in elementary school, or the fire tetrahedron that I am learning about in fire science now, still do not uphold your claim as the fuel burns way too quickly to complete structural failure as claimed"
This is what I learnt from wikipedia:
"Thermite usage is hazardous due to the extremely high temperatures produced and the extreme difficulty in smothering a reaction once initiated. The thermite reaction releases dangerous ultra-violet (UV) light requiring that the reaction not be viewed directly, or that special eye protection (for example, a welder's mask) be worn. Small streams of molten iron released in the reaction can travel considerable distances and may melt through metal containers, igniting their contents"
Is it not the molten iron that is released from the thermite reaction that melted the steel?
http://www.historycommons.org/events-images/614_mo
What is that substance coming from one of the towers?
The NASA hotspot reference:
http://pubs.usgs.gov/of/2001/ofr-01-0429/thermal.r
The quote here says the hotspots were over 800 F.
You still haven't told me what Larry Silverstein meant by "pull it".
There was a topic I forgot to address in my last comment and that is the destruction of the evidence. Here is a quote from one of my blogs:
"The chairs of the 9-11 Commission and the Joint Inquiry of the House and Senate Intelligence Committees report that government “minders” obstructed the investigation by intimidating witnesses. It was deduced that the officials from the Pentagon lied to the Commission with the result that the Commission recommended them to be criminally charged. Recorded interviews on tape with traffic controllers working on 9-11 were destroyed by cutting the tape into pieces and tossing it into the trash cans around the building.
Structural engineers have pointed out the serious “mistake” of the decision to rapidly recycle the steel columns, beams and trusses that once held up the towers. Without this, some of the most direct evidence to how the towers collapsed was thus destroyed. I don’t know how anyone could see it prudent to destroy evidence in a criminal investigation, because that is what it is, unless they had something to hide.
Matthew G. Monahan, spokesman for the city’s Department of Design and Construction, which was in charge of the debris removal at Ground Zero said, “The city considered it reasonable to have recovered structural steel recycled. Hindsight is always 20-20, but this was a calamity like no other. And I’m not trying to backpedal.”
http://www.nytimes.com/2001/12/25/nyregion/25TOWE.
Your rapid response proves to me that you didn't read all the links I gave you because it is a lot of information.
What makes me think an American president would order the killing of Americans? Maybe a very evil one? But then again, presidents don't run the country. Shadow governments do. Saddam Hussein can kill his own but not American presidents because America can do no wrong.
Of course you just disregard all the proof that America was in cahoots with the Taliban shortly before 9-11. If you actually read my blogs, you would be referred to sources that prove all that I write. You are denial, of course. You don't have the courage to face the truth. My agend
Okay, I see that science won't convince you that the buildings were demolished. You are entitled to your opinion. I mean, it doesn't matter to you that lots of architects, engineers, etc, say it was a demolition, it's only your opinion that counts.
"As far as the US “invading” other countries illegally, I am confused, are you saying that no country should respond to a direct attack?"
Hmmm, it appears as if you didn't read my blogs on the US, Pakistan and Taliban. Let me refresh your memory. There is absolutely not a SHRED of evidence that Osama bin Laden was responsible for 9-11. I don't know if you have it but no one else does. I mean, the USA even admits they have faked Al Qaeda videos so don't mention the fake confession of Osama. So you don't go around and attack countries when you have no evidence they attacked you first. My goodness, Al Qaeda isn't even a terrorist organisation. It is a database. A list of mujahideen in the 80s recruited by the CIA.
It also doesn't perturb you that the USA was negotiating a oil pipeline deal with the Taliban up until August 2001? They don't mind doing business deals with the Taliban.
As for Iraq, it is technically known as an illegal war according to the United Nations. Where the hell was the evidence of Saddam Hussein's weapons of mass destruction? NONE! And the irony of it all is that in the Iran-Iraq, the USA sold chemical weapons to Saddam Hussein which he used to GAS the Kurds.
That's a historical fact, not a conspiracy theory. So if the USA can be responsible for that, they can be responsible for 9-11.
"You go on to dispute the evidence that the main tower cores were not severely damaged. That claim contradicts the physical evidence found at the site. The evidence is over whelming that towers 1 and 2 suffered catastrophic damage at the core"
Show me the evidence please. You know the towers were designed to take multiple impacts by jet liners, according to WTC Construction and Project Management manager, Frank A DeMartini. He said the steel beams were like a mosquito net on a screen door and the jects are like pencils puncturing a steel netting.
"A very small fire that started in a barn ultimately burned a huge percentage of that City. If you do not believe me, set your house on fire, prevent the fire department from doing anything, and see how long that house stands, then answer this, “why is WTC 7 different?”
How is WTC 7 different? Maybe it is different because it had kick ass steel reinforced columns. My house isn't constructed like WTC 7. Is yours? And might I remind you that the FEMA report said heat stress was unlikely to have brought the building down?
Anyway, you fail once again to tell me what Larry Silverstein meant by "pull it" when referring to WTC 7. Pull it is a demolition term.
As for the symmetry business, I'm not going into that again. I don't know why, if your science is correct, many demolition experts say that WTC 7 was demolished. Did they buy their qualifications at the local flea market?
About shadow governments, ah, Obama himself admits the bankers control America. Excerpt from this site:
http://www.infowars.com/barack-obama-puppet-on-a-s
"The extent to which the CIA, and the International Bankers who control the Agency, create statesmen is something Obama himself is acutely aware of. In a 1983 article for the Weekly News Magazine Sundial of Columbia University, ironically entitled Breaking the War Mentality, the then 22-year old Barack Obama wrote:
“In 1933 the German establishment thought it could use Hitler to restore a modicum of order to the confused and confusing Weimar Republic. In fact, Hitler did strengthen the German establishment, but not exactly in the way the bankers and businessmen had wanted; and now, fifty years later, it is clear who was using whom.”
The young Obama was also aware that most statesmen were just puppet-presidents, put in power by the CIA and the bankers behind it:
“Nevertheless, the Western World did not complain in 1933 because Hitler, though a fascist and a totalitarian, was seen, like countless American puppet dictators today, as someone who leaves the established order in place.”
They are powerful people out there that attest to a shadow government.
Benjamin Disraeli, British prime minister said: "...the world is governed by very different personages to what is imagined by those who are not themselves behind the scenes."
JFK said: "The high office of President has been used to foment a plot to destroy the Americans' freedom, and before I leave office I must inform the citizen of his plight."
He must have been paranoid, as well.
Manly P Hall, a 33rd degree Freemason said:
"Not only were many of the founders of the United States government Masons, but they received aid from a secret and august body existing in Europe which helped them to establish this country for A PECULIAR AND PARTICULAR PURPOSE known only to the initiated few."
"By the time you become the leader of a country, someone else makes all the decisions. You may find you can get away with Virtual Presidents, Virtual Prime Ministers, and Virtual Everything." - Bill Clinton
He says ALL the decisions!!
1954 -- Senator William Jenner said:
"Today the path to total dictatorship in the United States can be laid by strictly legal means, unseen and unheard by the Congress, the President, or the people... outwardly we have a Constitutional government. We have operating within our government and political system, another body representing another form of government, a bureaucratic elite which believes our Constitution is outmoded and is sure that it is the winning side.... All the strange developments in the foreign policy agreements may be traced to this group (CFR) who are going to make us over to suit their pleasure.... This political action group has its own local political support organizations, its own pressure groups, its own vested interests, its foothold within our government, and its own propaganda apparatus."
And...
"Behind the ostensible government sits enthroned an invisible government owing NO allegiance and acknowledging NO responsibility to the people. To destroy this invisible government, to befoul this unholy alliance between corrupt business and corrupt politics is the first task of the statesmanship of today." -- President Theodore Roosevelt, 1906
Were they all paranoid?
"In concluding, politics makes strange bedfellows, and alliances are never permanent. So who was in cahoots with whom is irrelevant."
Oh my gosh, I can't believe you just said that. You are saying it doesn't matter than the USA makes terrorists their alliances. That's insane.
"What matters is how many lives were saved by the performance of those buildings during a catastrophic event. Stop spouting off your politics here, this is hub is to show how building codes save lives"
I am sorry, but it is you who brought up the inside job claim in your blog. And discussing the way the buildings fell is very relevant to your blog.
You are not doing yourself any favours by denying the truth.
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breakfastpop Level 8 Commenter 2 years ago
Great Hub, informative and moving. I too remember where I was on September 11. I was on my way to the Jersey Shore when a news broadcast announced that a plane hit the Towers. My immediate thought was a small single engine plane, because anything else was way too difficult to fathom. We pulled our car over and people were standing around by the beach, stunned and silent. We could actually see the smoke rising from the towers in the distance. My children worked in Manhattan at the time and a close friend in the Towers. I don't have to say what my husband and I were going through at that moment. Thankfully, our children and friend were safe, but my heart still cries for all those who lost their lives that day. I have no patience for idiots like Rosie who muddy the waters with their insanity.