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Open Letter to Dr. Gene Corley 17 February 2005 FROM: Christopher
Bollyn, American Free Press, Washington, D.C.
TO: Dr. W. Gene Corley, Senior Vice President Construction Technology Laboratories, Skokie, IL RE: Comparison of Performance of World Trade Center Towers and Windsor Building (Madrid, Spain) After Intense and Prolonged Fire of Feb. 12-13, 2005 DATE: February 17, 2005 NOTE: Dr. W. Gene Corley was Team Leader of the FEMA-Sponsored building assessments done by engineers of the Murrah Federal Building, Oklahoma City (1995) and the World Trade Center, New York City (2001). Dear Dr. Corley, In the executive summary of the FEMA-sponsored study entitled World Trade Center Building Performance Study (BPS - 2002), you wrote that "secondary fires" caused the twin towers to collapse (p. 2): "The heat produced by this burning jet fuel does not by itself appear to have been sufficient to initiate the structural collapses," you wrote. "However, as the burning jet fuel spread across several floors of the buildings, it ignited much of the buildings' contents, causing simultaneous fires across several floors of both buildings. "Over a period of many minutes, this heat induced additional stresses into the damaged structural frames while simultaneously softening and weakening these frames. This additional loading and the resulting damage were sufficient to induce the collapse of both structures." In the section that deals with the collapse of the twin towers, the BPS says (p. 2-37): "Because the aircraft impacts into the two buildings are not believed to have been sufficient to cause collapse without the ensuing fires, the obvious question is whether the fires alone, without the damage from the aircraft impact, would have been sufficient to cause such a collapse ... it is impossible, without extensive modeling and other analysis, to make a credible prediction of how the buildings would have responded to an extremely severe fire in a situation where there was no prior structural damage." Dr. Corley, do you agree that the Windsor Building fire in Madrid provides an excellent real-world model to show how the twin towers should have responded to "an extremely severe fire" alone? The Windsor Building has central support columns in its core section, which is similar to the construction of the twin towers. As you know, the central core supported the gravity load of the twin towers. Why did the 47 central columns of the WTC towers fail completely while similar columns in the Windsor Building remain standing - even supporting a building crane as the attached photo shows? Respectfully, Christopher Bollyn
American Free Press Washington, D.C.  See also: Bollyn-Hariri-Feb2005.html Bollyn-Hariri-assassination-Micronuke-Theory-is-Disinformation.html |