[QUOTE] "suddenly disintegrate" ?[/QUOTE] [QUOTE] Do you make this shit up?[/QUOTE] You should do some basic research before you post your opinions. [URL]http://911research.wtc7.net/talks/towers/index.html[/URL] The towers went from standing to a pile of rubble in about 15 seconds. They did that because their massive steel frames shattered, melted, and disintegrated into pieces. Minor fires near the tops of the towers could not possibly have caused the massive undamaged steel frames below to fall through themselves in perfect symmetry and free fall speed. That's been proved with physics. Here's what happens to steel framed buildings exposed to raging infernos for hours on end. [URL]http://davesweb.cnchost.com/nwsltr69c.html[/URL] Perhaps you should learn more about the extreme (2000%) reserve strength designed into the steel frames of the towers. How was the 2000% reserve strength of the undamaged steel frame exceeded by only the force of gravity, in your opinion? And how was it exceeded to such an extreme degree that the undamaged steel frame with a 2000% reserve strength capacity offered no measurable resistance with only the force of gravity working against it? From: [URL]http://www.911truth.org/article.php?story=20060327100957690[/URL] "The Twin Towers and Why They Fell It would help to begin with an accurate description of the WTC towers in terms of quality of design and construction. In July of 1971, the American Society of Civil Engineers (ASCE) presented a national award judging the buildings to be "the engineering project that demonstrates the greatest engineering skills and represents the greatest contribution to engineering progress and mankind."3 Others noted that "the World Trade Center towers would have an inherent capacity to resist unforeseen calamities." This capacity stemmed from the use of special high-strength steels. In particular, the perimeter columns were designed with tremendous reserve strength whereby "live loads on these columns can be increased more than 2,000% before failure occurs. More on the incredible strength of the towers can be found here: [URL]http://911research.wtc7.net/wtc/analysis/design.html[/URL] "There is evidence that the Twin Towers were designed with an even greater measure of reserve strength than typical large buildings. According to the calculations of engineers who worked on the Towers' design, all the columns on one side of a Tower could be cut, as well as the two corners and some of the columns on each adjacent side, and the building would still be strong enough to withstand a 100-mile-per-hour wind. 3" The massive steel frames of the towers were far too strong to collapse only under their own weight. That's been proved with physics, and that's why no other steel framed buildings have ever collapsed that way unless they were demolished. See Gordon Ross' excellent paper on momentum transfer on this page: [URL]http://worldtradecentertruth.com/[/URL] As common sense would dictate, even if all the perimeter and core columns near the top of the tower were somehow destroyed simultaneously so that the top 20 stories or so dropped onto the remaining undamaged frame, after some bending and compression, the collapse would have stopped, or the upper block would have fallen off to the side. Gordon Ross proves that with physics. To believe that the towers could fall through themselves at virtual free fall speed and in perfect symmetry is comical nonsense. What you are saying, is that falling directly =through= the massive undamaged steel frames, including the 47 interconnected central core columns: [URL]http://911research.wtc7.net/wtc/arch/core.html[/URL] provided little more resistance than air. This is proved by the fact that debris falling outside the towers hit the ground about the same time as the debris falling through the towers. Making your theory even more impossible, is the fact that the steel at the top of the towers was ten times lighter and thinner than the undamaged steel in the lower section. Your magic fire conspiracy theory is an utterly idiotic and comical fantasy - and it violates the laws of physics. Look at the massive core column cross section in the bottom photo. [URL]http://911research.wtc7.net/wtc/arch/core.html[/URL] Your magic fire theory says that crushing 47 of those bad boys, all interconnected with even more steel, =and= destroying all the perimeter columns, =and= "pancaking" all the floors, produced about the same kinetic friction as falling though air. That's some crazy, crazy, shit. It's amazing what some people can programmed to believe. Observe the rotating and disintegrating block on the South Tower. [URL]http://911research.wtc7.net/wtc/evidence/photos/wtc2exp4.html[/URL] As the top section of that tower is rotating, the high strength, fire resistant perimeter columns on one side of the building are being compressed, and on the opposite side, they're being pulled apart. Why do you think the steel perimeter frame with no weight above it is exploding and collapsing at the same rate as the compressed side? Seems more than a little odd, doesn't it? Here's some information on the perimeter columns. [URL]http://911research.wtc7.net/wtc/arch/perimeter.html[/URL]