Really? It has never IN HISTORY happened? You are an expert on all structures throughout history? Because I'm pretty sure that I've seen buildings collapse from fire before.
Then that should be real easy for you to prove.
Steel-frame structures cannot globally collapse due to gravity and local failures alone. It's not possible, can't be replicated in a lab. There is too much redundancy in the steel.
It's not possible, cannot be replicated in a lab.
I defy you to find ANY examples of steel-frame buildings collapsing from fire in HISTORY before or AFTER 9/11.
No steel-structure building has ever collapsed due to fire in the entire history of mankind, then in one day 3 seperate buildings do? The odds of that are astronomical. And the odds of any building UNIFORMLY collapsing at free-fall speed due to local failures .. three times on the same day .. reaches the level of absolutely moronic.
And to the argument about the planes hitting with such force, or this and that about "gallons of fuel" ... in 1945 The Empire State Building was hit by a B-25 bomber. The fire burned longer than the towers and was not as well constructed as the towers. The building did not collapse.
In May 1988 a fire at the Interstate Bank Building in Los Angeles destroyed four floors and damaged a fifth floor of the modern 62-story building. The fire burned for four hours. The building did not collapse.
In February 1991 a fire gutted eight floors of the 38-story One Meridian Plaza building in Philadelphia, Pennsylvania. The fire burned for 18 hours. The building did not collapse.
In October 2004 in Caracas, Venezuela, a fire in a 56-story office tower burned for more 17 hours and spread over 26 floors. Two floors collapsed, but the underlying floors did not, and the building did not collapse.
In February 2005 there was another "towering inferno" in Taiwan. The fire burned for about an hour and a half, but the building never came close to collapsing.
Also in February 2005 the 32-story Windsor Building in Madrid, Spain, caught fire and burned for two days. The building was completely engulfed in flames at one point. Several top floors collapsed onto lower ones, yet the building remained standing.
In 1975 WTC1 itself survived a serious fire. It started on the 11th floor and spread to six other floors, burning for three hours. How did WTC1 survive a 3-hour fire in 1975 but completely collapsed on 9/11 as the result of a fire lasting less than two hours?
HISTORY is full of examples of building fires, including buuldings hit by planes. NONE have ever collapsed as they did on 9/11, none have since, and none ever will. It is impossible.
Then explain how such an event could bring down two giant buildings that collapse in the exact same science-defying manner, yet using the exact same catalyst, only cause such small damage to a much smaller building .. only leaving a 16/14ft hole .. didn't burn the pages off a book right next to the impact site .. didn't burn a wooden stool .. YET, the plane, passengers, giant 7ft tall indestructable engines, wings, tail, luggage, and most everything you'd expect in a crash site, just magically
disappears.
That shit is amazing.
They just .. pooff .. disappeared.
And even though there are cameras all over the Pentagon, including on the roof, all we could get was one grainy picture that doesn't show anything.
.. amazing
How about pictures from the camera that was immediately confiscated by the FBI from the gas station right across the street? Don't we get to see those? .. No, we don't. .. and given the flight path the "plane" had to take, by the "hijackers" were flying over the gas station they had to be at about tree top level .. which would have blown the windows out the station and the roar of the plane going overhead would have been deafening .. and the plane would have left a wake of blown out windows and even over-turned cars as it flew over the freeway system right next to the Pentagon.
But I do understand that asking these questions is unamerican.
So I'm not asking.