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originally posted by: Alien Abduct
a reply to: TrueAmerican
Why is there no holes or at least marks where the two 7,000lbs (3,181kgs) titanium engines hit the building?
originally posted by: cardinalfan0596
a reply to: facedye
Nope. They found quite a few engine pieces in the wreckage. So, no, not evaporated.
originally posted by: facedye
originally posted by: Zaphod58
a reply to: facedye
Simply pointing out that the combination of things that happened that day resulted in the final collapse. One or the other by itself would have resulted in a different outcome.
The engineers envisioned something like the Empire State Building crash, where a plane going slow looking for the runway hit the building. Not that someone would have slammed a plane into it at a high rate of speed. Different events, different impacts.
both would have caused fires.
the logic in the assertion you raise is severely lacking.
these buildings were built to withstand plane collisions, *with fuel.* this is partially why the steel was thicker on the bottom half of the building than the top half.
believing otherwise is unrealistic.
originally posted by: firerescue
a reply to: facedye
are you saying that the engineers prepared for the plane's collision but not the fuel in its tank?
At time buildings were constructed were not able to model fire behavior - computers at that time not powerful enough
Were able to calculate impact forces on building - found that would take lateral force of 17 million foot pounds to collapse building
Impact by jet airliner would generate 13 million foot pound - ergo building would not collapse from impact
Secondary effects - striping of fire proofing from steel and resulting fires caused by fuel load could not be
determined .......
originally posted by: cardinalfan0596
a reply to: Wolfenz
And for your proof, you offer a video of WTC Construction Engineer Frank DeMartini......who died in the collapse of the South Tower shortly after radioing down that he was seeing signs that the building was going to collapse. Oops.
Then.....the Titanic was designed to be unsinkable.
originally posted by: facedye
originally posted by: Zaphod58
a reply to: facedye
Simply pointing out that the combination of things that happened that day resulted in the final collapse. One or the other by itself would have resulted in a different outcome.
The engineers envisioned something like the Empire State Building crash, where a plane going slow looking for the runway hit the building. Not that someone would have slammed a plane into it at a high rate of speed. Different events, different impacts.
both would have caused fires.
the logic in the assertion you raise is severely lacking.
these buildings were built to withstand plane collisions, *with fuel.* this is partially why the steel was thicker on the bottom half of the building than the top half.
believing otherwise is unrealistic.
www.fireengineering.com... wtc-towers.html
"FIREPROOFING" AT THE WTC TOWERS
10/01/2002
BY ROGER G. MORSE
ROGER G. MORSE is a member of the American Institute of Architects and director of Morse Associates, which focuses on forensic building investigation.
I investigated the fireproofing in both World Trade Center towers over approximately a 10-year period between the early 1990s and early June 2000, the last time I was in the towers.
There were problems with the fireproofing in the World Trade Towers that may have rendered them vulnerable to fire. These problems are not unique to the WTC; I have observed similar problems with the fireproofing in many high-rise buildings in the United States and Europe.
www.debunking911.com...
Faulty Fireproofing Is Reviewed as Factor in Trade Center Collapse
Excerpts:
By JAMES GLANZ with MICHAEL MOSS
"Large areas of fireproofing are missing from the core columns in some of the photographs, and the architect who took them, Roger G. Morse, a consultant in Troy, N.Y., said his work had shown that the fireproofing did not stick properly. But Mr. Reiss said the problems were caused by the swaying of the buildings in the wind and the impact of elevator cables against the beams. "It was an ongoing maintenance headache," he said. Although measures were repeatedly taken to prevent the problem, he said, "every March and April when you had these windstorms and the building rocked back and forth, you would still knock some of the fireproofing down."
In an interview, Mr. Morse said the problems were far more widespread than that, probably because the fireproofing had been applied improperly to rusty steel. Mr. Morse, who at the time of his inspections was a consultant to the manufacturer of the fireproofing, said his examinations had never reached above the 78th floor in either tower, but that the nature and dimensions of the problem convinced him the failings of the fireproofing would be found on virtually all parts of the buildings. Investigators think the planes struck around the 90th to 94th floors of the north tower and the 78th to 84th floors of the south tower.
Mr. Morse said his inspections on several floors also found problems with the fireproofing of the lightweight, weblike trusses that held up the floors. He said his inspections, which began in 1986 and continued intermittently until June 2000, showed stretches of the tubelike structural steel supporting the trusses without any fireproofing, and other areas of extremely thin fireproofing.
Port Authority officials dismissed those allegations, saying that they doubted the photographs were representative of the entire building and that fireproofing on the trusses was regularly replaced and upgraded whenever there was a major renovation or a change of tenants."
www.mzaconsulting.com...
Bringing Closure to the 9/11 Pentagon Debate
By John D. Wyndham | Oct 7, 2016 | Essays, Science, US
Despite the clear evidence and its analysis using the scientific method of large plane impact, a substantial portion of the 9/11 truth movement, including accepted leaders and those involved in major organizations, continues to publicly endorse, adhere to, or promulgate talks, writings and films on false Pentagon hypotheses. Some simply offer criticisms and reject or ignore evidence that would bring closure to the argument. There is clear evidence by way of disintegrating truth groups that these endorsements and communications are injurious to the movement. Public feedback shows that the false Pentagon hypotheses undermine public acceptance of other highly credible scientific findings, such as the
originally posted by: neutronflux
a reply to: facedye
You are so biased to the point beyond being rational.