and some engineering concepts (which verifies my saying about the buildings structure design)
http://www.serendipity.li/wot/wtc_demolition_init.htm
Thanks for your attempt to answer my questions Cem, but I realise you cannot answer them no more than any 9/11 conspiracy theorist can, due to the fact that any man made demolition never happened; there are not thousands of people having to be kept quiet, including blood spitting relatives, because it was a terrorist attack involving two jet airliners smashing into two office blocks, with the result they finally collapsed due to all the stress, fire and damage.
As for your quote, it is by an unknown source, via a web site with "fairy" in its name! The professional architects who's reports I have read, and seen a documentary by a similar group, all conclude (to repeat my earlier post) that the beams popped off their hangers, with the perimeter steel supports buckling in the extreme heat of an enclosed kerosene fire, and the floors they supported all collapsing onto the next floor, then the next, and the next, at ever increasing speed, just like a pack of cards.
Really Cem that is it, and until anyone claims to have been part of the demolition team, or the cover up team of thousands, or even one of the 10's of thousands of relatives who know they lost a relative or work collegue, or someone else, due to a US government conspiracy, that in turn would have involved hundreds, going onto to thousands, I will not believe anything else
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Lizzie , engineering calculations are facts.. not something that you can simply ignore.. Also I have given many links to videos and pictures to proove what I say.. if you want to close your eyes than no problem for me

But Cem, where are the hundreds, if not thousands of witnesses involved in the conspiracy??............I never close my eyes to precise evidence, but so far there is none.........so I think for once we will have to agree to disagree Cem

Whatever we think, nothing will change anyway!!

some eyewitnesses say :
"It [WTC 2] started exploding," said Ross Milanytch, 57, who works at nearby Chase Manhattan Bank. "It was about the 70th floor. And each second another floor exploded out for about eight floors, before the cloud obscured it all." [ASNE] "I saw small explosions on each floor." [Wing TV]
"It actually gave at a lower floor, not the floor where the plane hit, because we originally had thought there was like an internal detonation explosives because it went in succession, boom, boom, boom, boom, and then the tower came down." [Ed Cachia - Firefighter [Engine 53]]
One eyewitness whose office is near the World Trade Center told AFP that he was standing among a crowd of people on Church Street, about two-and-a-half blocks from the South tower, when he saw "a number of brief light sources being emitted from inside the building between floors 10 and 15." He saw about six of these brief flashes, accompanied by "a crackling sound" before the tower collapsed. Each tower had six central support columns. [American Free Press]
"We were there I don't know, maybe 10, 15 minutes and then I just remember there was just an explosion. It seemed like on television they blow up these buildings. It seemed like it was going all the way around like a belt, all these explosions." [Rich Banaciski - Firefighter (F.D.N.Y.)]
"When I looked in the direction of the Trade Center before it came down, before No. 2 came down, ..I saw low-level flashes. In my conversation with Lieutenant Evangelista, never mentioning this to him, he questioned me and asked me if I saw low-level flashes in front of the building, and I agreed with him because I thought -- at that time I didn't know what it was. I mean, it could have been as a result of the building collapsing, things exploding, but I saw a flash flash flash and then it looked like the building came down."
Q. "Was that on the lower level of the building or up where the fire was?"
A. "No, the lower level of the building. You know like when they demolish a building, how when they blow up a building, when it falls down? That's what I thought I saw. And I didn't broach the topic to him, but he asked me. He said I don't know if I'm crazy, but I just wanted to ask you because you were standing right next to me… He said did you see any flashes? I said, yes, well, I thought it was just me. He said no, I saw them, too." [Stephen Gregory - Assistant Commissioner (F.D.N.Y.)]
"Somewhere around the middle of the World Trade Center, there was this orange and red flash coming out. Initially it was just one flash. Then this flash just kept popping all the way around the building and that building had started to explode. The popping sound, and with each popping sound it was initially an orange and then a red flash came out of the building and then it would just go all around the building on both sides as far as I could see. These popping sounds and the explosions were getting bigger, going both up and down and then all around the building." [Karin Deshore - Captain (E.M.S.)]
The scientific paper Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe conclusively shows the presence of unignited aluminothermic explosives in dust samples from the Twin Towers, whose chemical signature matches previously documented aluminothermic residues found in the same dust samples.
http://911research.wtc7.net/essays/thermite/explosive_residues.html