[quote]horsepuss wrote:
Then why havnt any of the other buildings around the world that have burned for DAYS not fallen down. Oh I know what your gonna say, They werent hit by planes. Yeah I get thet but Sifu you said youreself that the jet fuel burned off quickly and the office furniture and carpet burned weakening the steel. Well buildings around the world have burned for days and not fallen down and I would be willing to bet they got just as hot.
Professor Jones is a crackpot who was relieved of his position at BYU for publishing his theories on the Physics departments website then trying to play them off as having been submitted for peer review and accepted. One of the journals Jones cited being published in (“Journal of 9/11 Studies”) he is the co founder and co-editor of.
The BYU college of mathematical sciences and structural engineering faculty distanced themselves from or even rebutted his theories. Here are some of their rebuttals of Jones.
Dear Editor,
After reading in the Daily Herald the presentations made by Professor Steven E. Jones (BYU Physics) to students at UVSC and BYU, I feel obligated to reply to his “Conspiracy Theory” relating to the terrorist attacks on the World Trade Center (9/11/01).
I have studied the summary of the report by FEMA, The American Society of Civil Engineers and several other professional engineering organizations. These experts have given in detail the effects on the Towers by the impact of the commercial aircraft. I have also read Professor Jones’ (referred to) 42 page unpublished report. In my understanding of structural design and the properties of structural steel I find Professor Jones’ thesis that planted explosives (rather than fire from the planes) caused the collapse of the Towers, very unreliable.
The structural design of the towers was unique in that the supporting steel structure consisted of closely spaced columns in the walls of all four sides. The resulting structure was similar to a tube. When the aircraft impacted the towers at speeds of about 500 plus mph, many steel columns were immediately severed and others rendered weak by the following fires. The fires critically damaged the floors systems. Structural steel will begin to lose strength when heated to temperatures above 1000 degrees Fahrenheit. Steel bridge girders are bent to conform to the curved roadway by spot heating flanges between 800 and 1000 degrees Fahrenheit. It is easy to comprehend the loss of carrying capacity of all the structural steel due to the raging fires fed by the jet’s fuel as well as aircraft and building contents.
Before one (especially students) supports such a conspiracy theory, they should investigate all details of the theory. To me a practicing structural engineer of 57 continuous years (1941-1998), Professor Jones’ presentations are very disturbing.
D. Allan Firmage
Professor Emeritus, Civil Engineering, BYU
“I think without exception, the structural engineering professors in our department are not in agreement with the claims made by Jones in his paper, and they don’t think there is accuracy and validity to these claims” “The university is aware that Professor Steven Jones’s hypotheses and interpretations of evidence regarding the collapse of World Trade Center buildings are being questioned by a number of scholars and practitioners, including many of BYU’s own faculty members. Professor Jones’s department and college administrators are not convinced that his analyses and hypotheses have been submitted to relevant scientific venues that would ensure rigorous technical peer review.” - A. Woodruff Miller, Department Chair, BYU department of Civil and Environmental Engineering
“The structural engineering faculty in the Fulton College of Engineering and Technology do not support the hypotheses of Professor Jones.” - The College of Engineering and Technology department
“But jet fuel wasn’t the only thing burning, notes Forman Williams, a professor of engineering at the University of California, San Diego, and one of seven structural engineers and fire experts that PM consulted. He says that while the jet fuel was the catalyst for the WTC fires, the resulting inferno was intensified by the combustible material inside the buildings, including rugs, curtains, furniture and paper. NIST reports that pockets of fire hit 1832°F.”
“The jet fuel was the ignition source,” Williams tells PM. “It burned for maybe 10 minutes, and [the towers] were still standing in 10 minutes. It was the rest of the stuff burning afterward that was responsible for the heat transfer that eventually brought them down.”
Professor Williams received his BSE from Princeton University in 1955 and his PhD from California Institute of Technology in 1958. He then taught at Harvard University until 1964, at which time he joined the UCSD faculty. In January 1981, Professor Williams accepted the Robert H. Goddard Chair in the Department of Mechanical and Aerospace Engineering at Princeton University, where he remained until 1988, when he returned to UCSD to assume his present position. His field of specialization is combustion, and he is author of Combustion Theory (Addison, Wesley, 2nd ed., 1985) and co-author of Fundamental Aspects of Combustion (Oxford, 1993). He is a deputy editor of Combustion and Flame and a member of the editorial advisory boards of Combustion Science and Technology, Progress in Energy and Combustion Science and Archivium Combustionis.
http://www-mae.ucsd.edu/RESEARCH/WILLIAMS/williams.html
Another point is your first video is very misleading. It shows portions of the WTC that were cut off at an angle using a blowtorch, in combination with a picture a linear shaped charge used in demolition placed at an angle. They are trying to give the impression that a shaped charge was used to cut that portion of the foundation off when there are photo’s on the web of those beams being cut with a torch.
