just quickly.
BF I agree, the reason the USA was attacked and why it was allowed to happen are two different points and I was trying to explain why the event was allowed to take place rather then the motive behind them.
As for air fuel burning steel -
http://guardian.150m.com/wtc/how-hot.htm
His maths is correct and its a good exmaple to use but he fails to factor in so many vairables.
For starters he just summerises very early on that only 1 floor is on fire. nice, because if it were two floors his experiment is quickly going out the window.
Second he failts to factor in that the air fuel has created a fire - the air fuel itself might not be enough to burn the steel but it has ignited the rest of the building - this alone is creating yet more heat/Energy that isnt being accounted for.
What about air? he just assumes the building is a box filled with air, what about the wind at that hieght fanning the flames? - Ive been up the trade towers and when u step out of the lift the updraft through the gap in the lift-shaft is nutty!
Anyhows, the fire isnt the key, its a factor. The buildings frame has just been hit by a big plane a pressure explosion.
Yes he failts to caluclate the resultant force of the explosion with the area of space it takes place in - this is a bomb, yes there will be fire but lets not underestimate it.
How much damage is done to the steel frame now? how much of the steel frame has been weakened to a stress point? how much is about to reach its plastic limit?
Whilst the fire alone is not enough - was it enough to tip it over the edge, once a few girders go that huge weight of the above floors will be enough to crush the buidling.
- Ive just watched some footage again, when the first tower falls it clearly breaks at the plane imapct point... unfortuantly I just watched footage of a man on the phone talking the FDP and he screams as it falls...which was enough to make me almost vomit.
So ill be leaving this alone for a while, as its suddenly distressed me again.