This of course supports the original findings that the initial impact from the hijacked airplanes stripped away crucial fireproofing material, eventually causing the towers to collapse under their own weight.
No room for crazed conspiracy theorists in this report, this is based purely on science and proper research - not sound bytes and nonsense.
The following link contains the report and access to several videos of these unique animations.
Purdue creates scientifically based animation of 9/11 attack
Excerpts from the report:
Structural engineers need to know from a scientific perspective what happened to the buildings during the terrorist attacks in order to prevent future failures. The search for answers continues with the help of a state-of-the-art animated visualization created by researchers at Purdue University.
"Scientific simulations restrict us to showing the things that are absolutely essential to the engineer," Hoffmann says. "This gives us a simulation that doesn't deliver much visual information to a layperson. Our animation takes that scientific model and adds back the visual information required to make it a more effective communication tool."
The scientific simulation, the completion of which was announced last September, required several test runs before the researchers were satisfied; the final test run required more than 80 hours of high-performance computing. The simulation depicts how a plane tore through several stories of the World Trade Center north tower within a half-second and found that the weight of the fuel acted like a flash flood of flaming liquid, knocking out essential structural columns within the building and removing fireproofing insulation from other support structures. The simulation used lines and dots to show the aircraft and building during the event.
"The crashes and computer models you often see on television are not scientifically accurate," he says. "This provides an alternative that is useful to the nonexpert but is also scientifically accurate, so it provides a more realistic picture of the event."
As with an earlier simulation developed by this team that examined the 9/11 attack on the Pentagon, the World Trade Center simulation showed that it was the weight of the 10,000 gallons of fuel more than anything else that caused the damage.
"It is the weight, the kinetic energy of the fuel that causes much of the damage in these events," Hoffmann says. "If it weren't for the subsequent fire, the structural damage might be almost the same if the planes had been filled with water instead of fuel."
"The aircraft moved through the building as if it were a hot and fast lava flow," Sozen says. "Consequently, much of the fireproofing insulation was ripped off the structure. Even if all of the columns and girders had survived the impact - an unlikely event - the structure would fail as the result of a buckling of the columns. The heat from an ordinary office fire would suffice to soften and weaken the unprotected steel. Evaluation of the effects of the fire on the core column structure, with the insulation removed by the impact, showed that collapse would follow whatever the number of columns cut at the time of the impact."
What are the odds that the CT'ers will simply bleat about how the Purdue researchers have been paid off by the USG? When they can't counter an argument using logic and reason, they resort to fantasy.