Yes - a very simple and effective plan. Then two of the buildings fell down - something which caught the engineering profession world wide by surprise. the profession learned. The situation somewhat analogous to the Tacoma Narrows bridge event. It has been said that doctors bury their mistakes whilst we engineers make them in full public view...
The Westgate Bridge in Melbourne was one of our local ones - although it was a balls up not a natural phenomenon.
http://www.westgatebridge.org/collapse.html 
Yes. Likewise a few 'debunkers'. Yes, I can discern those who have substance to offer from those who don't.
I have not the slightest difficulty accepting a true statement as true whoever makes it. I have no need to make false accusations or insult people simply because they are labelled as truthers.
No, the collapse was no surprise; the design was for an imapct at 180 mph, 187 pounds of TNT in kinetic energy, and the impacts on 911 were 7 and 11 times greater in Kinetic energy. Instead of a smashed shell, and plane parts falling on the ground we have 6 core columns destoryed, and 10 core columns delstroyed. 10,000 gallons of fuel on multiple floors, acres of fires, with insulation desgoryed. The collapse was expected after you study the facts, something the inside job guys, the guys giving a pass to terrorists can't comprehend. They study the collapse front of wallboard, and measure the speed. Study a wave propagation as the floors failing accerlate; like watching blind men study an elephant.
The WTC towers collapse was expected, fire fighters were evaucating people in case of collapse, local or global. There is no surprise for those who can comprehend fire science, and basic engineering. What we have is apeasing a few fringe inside job truth movement guys who have to blame 911 on the government, or unknown master power, the puppetmaster, a fantasy.
No, it is expected for buildings fail in fire, it is a known fact, the WTC collapse is not like the Tacoma Narrows bridge event. Not even close. The terrorists cheated, they crashed at high speed, bringing more energy in the impact than the previous 93 bomb. Then we have 315 tons on heat energy in each jet fuel fire. Then the office contents beat that. There is only surprise when we lack the facts. It has been 9 years and as you appease people making up failed analysis, and still think the WTC collapse is a surprise; After 9 years. Are you the closet inside job truther, on the fence truther, surprise by fire science and engineering.
Goal free analysis, the stuff of failure. I don't have to set a goal, I understand why the WTC collapsed, and I understand why the local collapse precipitated a global collapse. Study of the collapse itself is a waste of time. We already know what caused the collapse, timing the wave of wallboard falling at 29 m/s is not going to help back in the inside job for 911 truth. The best part of watching the fringe truthers being appeasedd by you, is their work is nonsnese, it is comedy, not a thing to do with engineer as they plot the speed of dust, post contridictions to what they say, and you let them skate on, as if they had somehing.
Better part, it doesn't take an engineering degree, like my undergrad and masters, to understand these guys are frauds, they have one goal to make up junk ideas to support their inside job fantasy.
If you were surprised the WTC towers collapsed after you studies the event, the aircraft speed, the 10,000 gallons of fuel, the impact dislodging insulation, then you too need a refund of your engineering degree, because exposing these frauds, can be done with a grade school education.
No substance is needed to when there is no substance, no goal, no thesis, no purpose in the nonsense you appease by acting as if they had substance and goal. I know their goal is backing in their inside job demolition fraud, this is all they have, as they make up studies, non-studies, and goal free nonsense.
The attacks on Bazant's work are in your no substance to offer category. It shows these few inside job truth engineers can't comprehend models, so they attack. But go ahead post nonsense, act as if you were surprised the WTC towers collapsed due to your lack of knowledge, and pretend these guys have something of substance. Gee, the sun came up, is that something of substance? Wow, the wallboard is timed falling at 28 m/s, gee, did they try modeling why they measure a wave, instead of collapsing floors, shown clearly in people's videos accelerating. Did they fail to hear the floors collapsing at an increasing rate. No, they use the MARK 1 eye ball on the low resolution video and declare, perimeter peeling, and other nonsense to keep you and them on the fantasy free-fall into truther land.
The engineering world was not surprised by the collapse. Terrorists flew planes at high speed into the WTC complex, 7 and 11 times past the design point for aircraft impacts. Fire did it, and anyone who studies fire science would not be surprised the towers collapsed. I did not know you lacked that knowledge and were surprised. But this was a terrorists attack, not like Tacoma Narrows bridge. Not even close.
Truthers can't comprehend models, and when you see them use the 1D card, it proves they are frauds. Balsamo uses the same card because he can't figure out math and models, so do these guys, who only have the goal to prove their inside job fantasy. You are posting to an array of paranoid conspiracy theorists, each with their own unique traits and failed fantasy. I guess you being surprised fire destroyed the WTC complex might explain why you think these frauds have something as they study post initiation collapse fo no reason save backing in inside job fake evidence.
Fact is fire destroys buildings, I have only been an engineer since 1974, and I have never seen this much BS, this much nonsense. There is no need to debate with people who have delusions as bad as these guys. Bazant's model is applicable to the real world, and the off topic 28 m/s wallboard collapse front will not expose the inside job in their fantasy world of paranoid conspiracy theories. They have the inside job demolition delusion, I did not suspect you did too. I thought you were teasing them, as they post nonsense, I thought you were making fun of them; I had no idea you were seriously responding to their goal free nonsense.
They never answer questions because their stuff is nonsense. How does the 28 m/s wallboard and dust crush front terminal velocity fit with Bazant's model? it does not, they have nothing to offer but fantasy of an inside job
You were surprised? now that makes sense now
