I did my best to explain this in my thread over the collapse of WTC7:
Let's think about the fire damage now. Fire burns randomly, it does not burn as a perfect cube, but instead as an organic, constantly changing form. The fire damage to WTC7 was asymmetrical, because there was not a fire burning on the 3rd to 7th window of the 28th floor on the left side of the building, and a fire burning on the 3rd to 7th window of the 28th floor on the right side of the building, and so on is a symmetrical pattern.
For the building to fall straight down on itself, you would need to take out the core columns in a symmetrical fashion within milliseconds of each other. A single failure at a random point in the building would not cause the entire building to collapse. A partial collapse may ensue which would be random and chaotic, but a total symmetrical collapse at free-fall speed is impossible without the use of explosives. According to the NIST report, the failure occured at column 79 on level 12. Supposedly a single column failure resulted in a total collapse.
The next topic is NISTs computer simulations/animations in support of their fire collapse theory. It basically gets torn to pieces by the experts, starting at around 47:30 in the film. Brookman explains how NIST had connections failing before the members, and they also considered 3 of the 4 connections failing to be 4 of the 4 failing. NIST has also refused to release all of their perameters and data used to model the collapse, despite multiple requests under the Freedom of Information Act.
So what do all of the experts conclude about the destruction of WTC7? They all agree that it had to have been brought down by controlled demolition. There had to be something destroying the connections in the building if 400 failed per second, explosives at the site of the connections being the only explanation.
Twin Towers
The Twin Towers were built to be able to withstand the impact of a Boeing 707, the largest aircraft at the time of it's construction. This article compares the statistics of 707s versus those of 767s:
The maximum takeoff weight for a Boeing 707-320B is 336,000 pounds.In this video, the World Trade Center Construction and Project Management Manager Frank DeMartini explains that the building could withstand multiple strikes from jetliners, because the structure is like the mosquito netting of a screen door, and the jetliners are just like a pencil puncturing the screen netting. "It really does nothing to the screen netting": When the airplanes struck each tower, much of the jet fuel was instantly burnt up in the initial explosion. Although some jet fuel may have been burning in the towers, the black smoke indicates that the fires were oxygen starved and that they were low temperature fires.
The maximum takeoff weight for a Boeing 767-200ER is 395,000 pounds.
The wingspan of a Boeing 707 is 146 feet.
The wingspan of a Boeing 767 is 156 feet.
The length of a Boeing 707 is 153 feet.
The length of a Boeing 767 is 159 feet.
The Boeing 707 could carry 23,000 gallons of fuel.
The Boeing 767 could carry 23,980 gallons of fuel.

NIST performed a test at Underwriters Laboratories, with fires burning at 2000*F for 2 hours. Even with these extreme conditions, the main trusses sagged only about 4 inches after 60 minutes and 6 inches after 100 inches, yet in their models, the main trusses were sagging well over 40 inches in their models. So the hypothesis was not corroborated by the experimental evidence.
edit on 13-1-2012 by TupacShakur because: (no reason
given)






) an architect, you read through the thread and saw some of the evidence provided in
the summary. What do you think about all of it? What do you think about these things that cannot be explained by anything other than controlled
demolition? Since there isn't 50% of architects and engineers saying "The official story cannot explain these things", does that make the claims any
less valid?
