Reply #175: Plane Impacts Could Have Only Caused The Tower Tops To Fall

[Christophera]

I've not seen any cmoprehensive calcs either. The pancake thing is hoakie and simple logic can disprove it. That I've seen dozens of times.

Perhaps the scarcity of calculations of a normal collapse of the towers is due to that fact that steel does not collapse in the manner observed. It comes down, steel below parallelograms and bends, folding all the way down and it ends up fairly far from the footprint, on one side or the other. The lightweight concrete offcially present in the towers would not behave as seen in the videos.

Also the quantity and character of particulate indicates structural high strength concrete rather than light weight concrete which has distinctive, lighter colors and produces billowy clouds rather than arcing plumes of heavy particles traveling at higher speeds. Those type clouds are also present and collapse wouldn't cause that. Those inclined to complete the calculations probably could not reconcile these inconsitencies and declined to project normal collapse rates.