Why Did WTC Collapse?
by Morgan Reynolds
"It didn’t seem real… There are thousands of these steel beams that just fell like pickup sticks."
~ John Albanese, volunteer firefighter and amateur photographer
"What struck us – guys like Warren Jennings and myself, who have spent basically all our lives in the scrap business – we’d never seen steel this heavy, this huge, this massive. It was just unbelievable."
~ Michael Henderson (p. 93),
General Manager, Marine Terminals, Metal Management NE
To explain the unanticipated free-fall collapses of the twin towers at the World Trade Center on September 11, 2001, mainstream experts (also see The American Professional Constructor, October 2004, pp. 12–18) offer a three-stage argument: 1) an airplane impact weakened each structure, 2) an intense fire thermally weakened structural components that may have suffered damage to fireproofing materials, causing buckling failures, which, in turn, 3) allowed the upper floors to pancake onto the floors below.
Many will nod their head, OK, that does it and go back to watching the NBA finals or whatever, but I find this theory just about as satisfying as the fantastic conspiracy theory that "19 young Arabs acting at the behest of Islamist extremists headquartered in distant Afghanistan" caused 9/11.