Quote:
Originally Posted by Pragnosis
...Assuming that the conspiracy theories are totally false, all three buildings must have been extremely poor in terms of structural quality. I watched a documentary and showed other buildings across the globe that had experienced far worse attacks of fire and they didn't even come close to collapsing. The architects and construction workers of the WTC need shooting.
Once again, thanks for the information and links.
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This is not at all true. No high-rise structure in the world has seen worse fires and survived, and none would.
Buildings fall straight down because that's the only way they
can fall. The WTC towers were 208 feet on a side. In order for them to come down sideways, the top of the building would have to be displaced over 100 feet! Try it with a box of saltines- stand it on one end and push it over. See how far over it has to go before if becomes unstable. If you get close to the tipping point and let go, it will stand back up. This is how buildings react. Even if it starts over on one side, it will straighten back up as it falls.
The '93 bombing was an attempt to get one tower to fall over and land on the other one, by weakening one side of the building at the basement. Even if they had succeeded in taking down one tower, it still would have fell in it's own footprint.
The collapses were progressive failures. As the upper floors collapsed, they landed on the floors below, overstressing the structure below. Once it began, there was no stopping it. Compression causes a lot of debris to be ejected, but the structure itself comes straight down.