Quote from tradestrong:
absolutely. I had read before that these buildings were so-called "revolutionary" designs. Well "revolutionary" usually means less stable in some cases.
To me it makes absolute sense. It's like when somebody walks up behind you and pushes your legs in at the knees. You don't "fall backwards". You fall straight down. That's what happened with these buildings. The lower supports failed causing the building to collapse directly down on itself.
Hey that makes two of you. I remember the day I was watching the drama unfold. When I saw the towers collapse I thought, "now that's an odd way to collapse..." Whereas everybody was saying, "OMG, the towers collapsed..."
To give you an example of what we are talking about look at the following video.
http://www.youtube.com/watch?v=J2uKjnJneJc
I have watched many examples and learned about the statics of blowing up a building. To make a building collapse the dynamite experts have to affix explosives at key locations throughout an ENTIRE building. Essentially what they do is take out the backbone of the building and let gravity do the rest.
Here is what happens when blowing up a building goes wrong:
http://www.youtube.com/watch?v=uAdoAHsNyvE&NR=1
or
http://www.youtube.com/watch?v=QbauH-mvmDw
So the question you have to ask is how come a random projectile has the ability to take down a building in a "safe" and directed manner... If you look at the details taking down a large structure such as the twin towers would require an immense amount of planning if it were a regular building...
