Forensic Study of World Trade Center Towers' Collapse

"World Trade Center Towers Collapse Forensic Study," Najib N. Abboud, chief technical officer, Weidlinger Associates, Inc. Weidlinger Associates conducted a study to analyze the structural effects of the impacts of the Boeing 767 airplanes on the Twin Towers after the terrorist attack of September 11, 2001. Admission is free. AIA reservations and those with Caltech ID will be admitted preferentially; the public is welcome, space permitting.