http://www.rcac.purdue.edu/news/news_wtc.cfm Researchers at Purdue University have created a simulation that uses scientific principles to study in detail what likely happened when a commercial airliner crashed into the World Trade Center's North Tower on Sept. 11, 2001. Researchers: Chris Hoffmann - Faculty Sami Kilic - Former Member Scott Meador Voicu Popescu - Faculty Paul Rosen - Graduate Student Mete Sozen