| wfz said:
Care to elaborate and say something useful, rather than redirecting the topic? Explain to me how the building fell with absolutely no resistance, onto itself, when other similar buildings never fell even after burning with much more intense fires for many more hours. |
None of the buildings fell with 'no resistance'. Look at this video. You can see that debris is falling faster than the main structure of the building. Also what did you expect? The top 20 or so floors to just fall off to the side? The main force acting on it is gravity. It isn't going to just move horizontally for no reason. People seem to think of towers as building blocks or legos where weight isn't really a factor in building something. The WTC was a fairly unique design where a large amount of the support was in the walls of the buildings. This meant there could be a large amount of open floor space without columns. When the planes impacted the buildings they took out or damaged a large number of these columns on multiple floors. Heat from the fires further weakened the steel and eventually it buckled and fell. When the weight of 20 to 30 floors starts falling it isn't going to just bounce off the next one and fall off to the side. It is going to take out that floor and then you have a larger mass moving faster, and so on.
Also, seriously, it has been ten years and people are still acting like steel has to melt for it to fail? I mean really...







