Even with the presence of a thermitic material which was found? And the discovery of the iron microspheres in the dust ( a bi-product of a thermitic reaction) and molton metal found in the derbis of all 3 buildings? I would say it would be a difficult thing to do, but not impossible.
Thermite is basically rust and aluminium, I don't think it would be impossible for those two materials to be in the building where the planes hit. How much of it was found? Who Found it?
The core was the main structure in the building. It was completely walled off. They could have accessed it from the basement levels and been in their all day with out anybody who they didn't want to know from knowing. There was even a large update on the elevator system a few months before 9/11 which could have been used as access to the core. There are also records of people saying that security was lowered, bomb-sniffing dogs were removed, there were power outs, and many floor evacuations weeks before 9/11. The security company of the wtc and Dulles airport used to (at that time) have George Bush's brother as one of the big boss men aswell.
Each of the Twin Towers had 244 columns around a central core that housed the elevators, stairwells, mechanical systems, and utilities. These were a redundant design when one system fails, another carries the load. Ideally "they" would have had to blow out more than just the central core to guarantee a collapse.
It was doing that even before the buildings collapsed. And when it happened when it was collapsing, there was only a few isolated ones (some even like 40 stories lower). If it was air, surely it would have happened alot more often and would have blown out several windows and wouldn't have been so concentrated.
The fire from the planes covered the area of an entire floor almost instantly. As the weakened floors began to collapse, they pancaked. This means that floors crashed down on floors. This would cause some windows to blow out even before the building collapsed. Doesn't air tend to look for a easiest way out? Again this is no fact and I am just trying to use logic but couldn't air travel through the building until it finds the path of least resistance?
THIS GUY made a device were it only took 2 pounds of thermite. What was found there was a higer tech version that you can't buy and mix up yourself. So even less was probably needed.
Those were actually some cool explosions. I still think that logistically it would be next to impossible to implement. The video Shows burning on the outside of the building. People into conspiracies tend to always find something "meaningful" in things if they look hard enough. He said there was a pattern in the burning (3 pillars then 6 then 3) but there were only 12 points on fire, you could find a pattern in pretty much any order of burning with only 12 options. Also if his theory was true, wouldn't there be much more visible burning going on? why only 12 pillars on the outside and only on one wall? As I said earlier there were hundreds of "failsafe" pillars inside around the main column, even if "they" had access I still think it would be waaaaay too risky to every be considered a viable plan.
Also, planes are made of some pretty exotic materials, I don't think the "molten metal" pouring from the building had to be from the building, that guy in the video (conveniently) never even mentioned any of the planes materials. There is a whole load of other tests that could be done.
The witnesses who spoke about the bombs in the basements said it happened a few seconds before the impact of the planes. They said how they were thrown about, people died, had their skin ripped off and suffered serious injuries, black smoke and soot filled the air and then they heard and felt the inpact from the plane. The buildings were designed to withstand plane inpacts from the biggest plane at the time that was bigger and heavier than the planes that hit on 9/11. Because though they were slighty slower they created roughly the same amounts of forces on impact. So for the designers not to take such forces into account when designing them is abit wierd.
From videos I have seen, most of the key points about how the eye witnesses prove it's all a cover up are taken from people just moments after the buildings have collapsed (or just about to). I find it hard to take their word for granted. They would have been under a HUGE amount of stress, they just went through something that has never happened before. At first they wouldn't have known a plane had hit the building, they would have assumed a bomb had gone off. The buildings are perhaps tall enough that there would have been a delay from the moment of impact to when they heard the explosion. Again I had not heard about any of this so I can't talk with any definite theories, only what first pops into my head from a logical point of view.
Jet fuel isn't hot enough to melt steel, but molten steel was there. People also say (including even NIST and the official report) that most of the jet fuel was burnt off in the initial fire ball and that the rest burnt off quite quickly, which is why they say that most of the visible flames disapear in a short period of time. If that is the case, then don't all buildings have that flaw with them being welded together as they are built and not being heat treated as a huge complete structure? There have been many other skyscraper fires and they all didn't collapse. And how was the rest of the buildings below the inpact weakened? And how did it collapse so uniform in the directing of most resitance? to fall that square, all the connection would have to fail at the same time, on each floor, at a rate of 10 floors per second. Seems abit far fetched to me as a result of random damage. And don't forget that building 7 collapse because of office fire. It had no pre-structure damage, just a few scrapes outside from falling tower debris.
The planes contained at least 10,000 gallons of fuel each, sure some was burned up in a fireball, but when a plane crashes and bursts into flames on a runway, it doesn't just make a big fireball and then go out. It would have burned for a while contained and concentrated in the building. The fuel burns at around 1500°F, I don't know the exact properties of the steel used in the building, but 1300°F wouldn't be a million miles off the temperature used for the heat treatment process of it. Welding the beams wouldn't be an issue as they would be at re-enforced joints held with bolts and other beams. The heat would have effected the longer unsupported lengths of the steel. They twisted or buckled which was the death of the building. As I said earlier the floors pancake in, it would be pretty unusual if it fell sideways considering the only force acting on it at that time was gravity (and a little bit of wind). The buildings were also about 95% air.
The buildings may well have been designed to withstand an impact from a plane, and they did survive the actual impact. I think the impact combined with a fire more intense than the designers had imagined was the killer blow. I don't really know about building 7, that does seem slightly odd, perhaps I'll look into it and come back with a reply.