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From what I've seen, based on SOME architects and engineers (I know, there are disputes...) it boils down to the design.
It would have been great if the structure had been designed differently and had stayed standing. I wonder if, say....other skyscrapers enduring the same circumstances would have faired better....
Seems to me that the Saudis were hoping to cause the Towers to topple over.
Obviously, that strategy didn't work (fortunately).
Ironically, if they had hit down lower (depending on the other buildings in the way of their approach) the devastation would have been a lot worse, and the collapses would have occurred more quickly.
AND, just think: IF the buildings were rigged for demo....it would have been a lot easier....fewer floors to rig up.
So -- somebody who planned this was pretty darn stupid.
Originally posted by GenRadek
So you didnt. No surprise. It was of the south tower.
You see, the hinge itself is what was allowing the tower to tilt into itself, not over the side.
If the hinge were to remain in one piece through the entire revolution, it may have fallen more over.
However it will not continue to keep tilting over since it is no longer attached.
The hinge connection severs only after a second and then it just falls down.
Originally posted by EvilAxis
If you believe 10.000 gallons of aviation fuel could not incinerate a hollow tree but would cause it to progressively collapse from top to bottom into a pile of sawdust and sticks, I think I'm wasting my time arguing with you.
I understand what you are saying - that fire and plane damage (minus plane damage in WTC 7) initiated the collapse and gravity did all the rest.
You're just restating your position, which I've proved untenable, that floor collapse caused floor collapse which for an unspecified reason destroyed the massive steel core and other support structures of all three towers.
If you don't wish to acknowledge that I refuted it in every detail - that's your prerogative. .
Are you seriously offering the Titanic as your analogy for the imploding towers?
It sustained localized damage causing it to sink and strike the sea floor, but the structure did not undergo any kind of pancaking or progressive global collapse, as evidenced by the pictures taken in 1985.
My opinion doesn't differ. I said it was impossible for quite different reasons, but pointed out that a thesis based on something which has previously never happened occurring three times in the same place on the same day and never again, has a strong prima facie case against it.
Originally posted by weedwhacker
I also pay attention to reputable sources that are knowledgeable about the engineering and structural specifics of how the Towers were constructed.
"We looked at every possible thing we could think of that could happen to the buildings, even to the extent of an airplane hitting the side," said John Skilling, head structural engineer...
Skilling, based in Seattle, is among the world's top structural engineers. He is responsible for much of Seattle's downtown skyline and for several of the world's tallest structures, including the Trade Center.
Concerned because of a case where an airplane hit the Empire State Building, Skilling's people did an analysis that showed the towers would withstand the impact of a Boeing 707.
"Our analysis indicated the biggest problem would be the fact that all the fuel (from the airplane) would dump into the building. There would be a horrendous fire. A lot of people would be killed," he said. "The building structure would still be there."
Skilling - a recognized expert in tall buildings - doesn't think a single 200-pound car bomb would topple or do major structural damage to a Trade Center tower. The supporting columns are closely spaced and even if several were disabled, the others would carry the load.
"However," he added, "I'm not saying that properly applied explosives - shaped explosives - of that magnitude could not do a tremendous amount of damage."
Although Skilling is not an explosives expert, he says there are people who do know enough about building demolition to bring a structure like the Trade Center down.
"I would imagine that if you took the top expert in that type of work and gave him the assignment of bringing these buildings down with explosives, I would bet that he could do it."
The buildings have been investigated and found to be safe in an assumed collision with a large jet airliner (Boeing 707—DC 8) travelling at 600 miles per hour. Analysis indicates that such collision would result in only local damage which could not cause collapse or substantial damage to the building and would not endanger the lives and safety of occupants not in the immediate area of impact.
However, I also pay attention to reputable sources that are knowledgeable about the engineering and structural specifics of how the Towers were constructed. In your summation, up above, your contradicted yourself...you said that explosives could not be planted because of the security...then you said that explosives WERE planted because of the lack of security.
Heightened Security Alert Had Just Been Lifted
By Curtis L. Taylor and Sean Gardiner | STAFF WRITERS
September 12, 2001
The World Trade Center was destroyed just days after a heightened security alert was lifted at the landmark 110-story towers, security personnel said yesterday.
Daria Coard, 37, a guard at Tower One, said the security detail had been working 12-hour shifts for the past two weeks because of numerous phone threats. But on Thursday, bomb-sniffing dogs were abruptly removed.
"Today was the first day there was not the extra security," Coard said. "We were protecting below. We had the ground covered. We didn't figure they would do it with planes. There is no way anyone could have stopped that."
Security guard Hermina Jones said officials had recently taken steps to secure the towers against aerial attacks by installing bulletproof windows and fireproof doors in the 22nd-floor computer command center.
Originally posted by weedwhacker
reply to post by EvilAxis
Firstly, the notion that the structure could withstand an impact from a B-707 or DC-8 (common largest jetliners of the time) traveling at 600MPH.
Isn't it a contention that the B-767s we saw hit were at about 500MPH, which is largely derided as 'impossible' (it is not...a shallow power-on dive could easily reach those speeds).
Originally posted by weedwhacker
Secondly, even if the designer and engineers were confident that the building would sustain the damage, but remain intact...did they stop to consider the additional influence of the hot fires???
Originally posted by weedwhacker
Are these same studies conducted for EVERY skyscraper? The Sears Tower, the TransAmerica Building, for instance? Or, was it due to the memory of the WWII-era crash of a B-25 (in the fog) into the Empire State Building???
9/11 Security Courtesy of Marvin Bush.
Marvin P Bush, the president's younger brother, was a principal in a company called Securacom that provided security for the World Trade Center, United Airlines, and Dulles International Airport. The company, Burns noted, was backed by KuwAm, a Kuwaiti-American investment firm on whose board Marvin Burns also served. [Utne]
According to its present CEO, Barry McDaniel, the company had an ongoing contract to handle security at the World Trade Center "up to the day the buildings fell down."
Please do not deflect again, nor accuse me of something I didn't do. It is disengenuous.
/sarcasm off/
So, it only took a few days to rig thermite charges, unseen by anyone to blow the whistle?
Back to my earlier, question though....because I don't want to argue nit-picky little details such as this...
WHY did this 'alleged' trace of 'thermite' just now turn up, over seven years later???
Originally posted by weedwhacker
Sorry, deMartini and Thornton don't convince me.
Where does Thornton get this '13,000 ton' figure, anyway??
Originally posted by weedwhackerthe only reference in your 'evidence' to fuel fires is amost a throw-away line...."a lot of people will be killed".