The attacks on the World Trade Center by Al Qaeda on September 11, 2001 was an event as surprising as it was tragic. A painstaking investigation involving state-of-the-art modeling has lowered the chances of it happening again. DirectIndustry e-magazine interviewed several industrial engineers to investigate how the Twin Towers concretely collapsed.  A Devastating Drop  On … Continue reading 9/11 Attacks: How The Twin Towers Collapsed