Oystein
Senior Member
Wayne Coste has a new whitepaper:
"Investigating the Mechanics of Destruction at the Twin Towers on 9/11: The Case for Propelled Demolition
By Wayne H. Coste, PE "
I'll attach the linked PDF.
From the Abstract:
"Investigating the Mechanics of Destruction at the Twin Towers on 9/11: The Case for Propelled Demolition
By Wayne H. Coste, PE "
I'll attach the linked PDF.
From the Abstract:
I have only just begun browsing.This paper proposes a previously undiscussed method, as a hypothesis, for the destruction of the Twin Towers on September 11, 2001. While it is not possible to understand all the factors and mechanisms that were employed in the destruction of the Twin Towers, given the immense combination of possible methods that could have been employed, the hypothesized mechanism is in agreement with key observations.
...
With NIST’s abdication of an official explanation for the structural behavior, much of the discussion over the last 19 years about the cause of the destruction of the Twin Towers has focused on the use of “explosive detonations.” However, there is scant evidence in the audio record for the use of traditional molecular explosives (e.g., “high explosives”) which are typically heard during the controlled demolition of structures. Furthermore, the remnants which consist of the intact parts of surviving structural elements – including steel beams, columns and connections – do not exhibit a widespread pattern of damage to support “explosive detonations” as a significant component of demolition process. For much of the building’s destruction, the observations show a highly energetic propelling force that was activated floor-by-floor – with the origin of this force centered at the building’s core / elevator shafts and radiating outward in all four cardinal directions (north-south-east and west). This observed propelling force is hypothesized to be based on a nano-thermite material that was “tuned” to be more like a rocket fuel than either an explosive or an incendiary. This “rocket fuel” propellant impacted the outer perimeter columns with immense simultaneous outward forces which the building was not designed to withstand. This resulted in the separation of the floor trusses from the core columns at its weakest point. That weak point was the interior bolted connections where the floor trusses were tied to the solid steel channels along the outside of the core. These channels, themselves, were solidly bolted to the core. The outer perimeter wall sections were propelled outward and peeled downward and outward through most of the height of the towers. The hypothesized mechanism would have progressed down the structure at a relatively constant rate optimized by mechanically determined parameters using, and leveraging, gravitational forces.