hairytesties said...
people thiink 19 terrorists carried out september 11, that jet fuel could cause two 110 story buildings to collapse at free fall speed, that no plane debris was found at the pentagon and the official explanation was all the steel, some near twenty tonnes of it was vapourised in the fires, but they could identify the bodies through dna.. now where's the conspiracy coming from there...
Here's the trouble with all these conspiracy theorists. They throw up a whole lot of half baked ideas which if you quickly scan through, they sound as though there might be some substance to them.
Let's look at just the small piece here though because on the surface you might think the conspiracy loby has a valid argument.
The Twin Towers were an unusual design and right from the start it was recognised that the design offered very little safety margin in the event of a serious fire. The reason being, that the supporting steel columns had almost no thermal insulation as it was not encased in concrete as it is in most other skyscrapers. Steel is very strong at normal temperatures but when it gets very hot, even well below red heat, it slowly takes on the structural rigidity of cheese! To get around this they later sprayed the steel structure with a very thin layer of insulation. This was at best a placebo operation, which might work on people but it doesn't work on steel structures. It made the people feel good about it but in effect, all it did was bought about 20 minutes more evacuation time in the event of a large fire.
The mode of failure was simply that a jet fuel fed fire which burned for an extended period heated the steel support columns to the point where they were below the structural rigidity needed to support the load above them.
The weight of the upper floors above the fire then collapsed onto the floors below the fire and the resulting impact of this drop and the distribution of the load forces greatly exceeded the strength of the floor below so that it then failed and also dropped to the floor below that, and the next, and the next, etc.
In effect, once the initial failure occurred the building became its own battering ram to demolish all the lower floors from the fire level down, plus the upper floors self demolished in reverse order as they pounded their way down.
If you watch the video footage you can see the process as it occurs.
It is as simple as that and the failure was not totally unforseen, it is just that it was seen as hugely improbable and therefore the risk was deemed as acceptable.
...that no plane debris was found at the pentagon and the official explanation was all the steel, some near twenty tonnes of it was vapourised in the fires, but they could identify the bodies through dna..
This is also a laughable alternative, that an airliner didn't fly into the Pentagon and that the damage was caused by an american misile.
It doesnt explain how a number of people saw an airliner fly into the building,
or where the missing airliner and all its passengers went to if they didn't fly into the building.
The conspiracy theorists say the plane just flew over the building and crashed in the lake behind the Pentagon. ???? Well nobody saw that did they? And the lake is a very small lake and not that deep. Surely someone would have noticed it there by now. Maybe a bit of floating debris? An oil slick maybe? After all, it was almost fully loaded with jet fuel.
As far as not finding any plane parts, the majority of the structure is alumunium alloy and will literally vaporise in a fire of the intensity that ocurred at the impact point so you would not expect to find much there which was recognisable as an aeroplane.
From other accidents that have ocurred at similar impact velocities into water and no post impact fire, (e.g. Silkair flight MI 185, December 1997) the aircraft disintergrates into pieces about the size of an a4 sheet of paper. ( largest piece in this accident was a 2 meter wing section)
And that was into water and mud. The Pentagon was very much more rigid than water and mud.
The dna that they recovered was from victims in the building who were not at the impact point. Anyone on the plane would have been vaporised by the impact and the post impact fire.
I do agree however, that the impact hole in the building was surprisingly small. But I think that it would be far easier to explain this than the huge web of unanswered questions that result from any alternative proposition.
The fact is, most things in life have aspects that can be a bit puzzling, or don't always make sense, but the answer is not to throw the most logical explanation out the window and explain the event by saying it's a conspiracy or a giant cover up.
Otherwise everything in life takes on the appearance of a conspiracy and to view life like that wont do anything good for your wellbeing..
So rattman maybe your mind has been "calmed " from over thirty years of drinking this poison so you are not willing to question anything. 
You left out the o in fluoridation. 
