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Originally Posted by crockett
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You are going to tell me, that the floors were falling for 12 seconds before the building started to fall, yet there was no smoke or dust pushed out the windows during that entire 12 seconds.
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"no building prior to 9-11, in the 100-plus year history of steel frame buildings, had ever collapsed from fire."
The official story maintains that fires weakened the buildings. Jet fuel supposedly burned so hot it began to melt the steel columns supporting the towers. But steel-framed skyscrapers have never collapsed from fire, since they're built from steel that doesn't melt below 2750 degrees Fahrenheit. No fuel, not even jet fuel, which is really just refined kerosene, will burn hotter than 1500 degrees Fahrenheit.
It's also odd that WTC7, which wasn't hit by an airplane or by any significant debris, collapsed in strikingly similar fashion to the Twin Towers. There wasn't even any jet fuel or kerosene burning in WTC7.
Why, then, did the three WTC buildings fall?
There is a method that has been able to consistently get skyscrapers to fall as fast as the three buildings of the World Trade Center fell on 9-11. In this method, each floor of a building is destroyed at just the moment the floor above is about to strike it. Thus, the floors fall simultaneously ? and in virtual freefall. This method, when precisely used, has indeed given near-freefall speed to demolitions of buildings all over the world in the past few decades. This method could have brought down WTC7 in 6.5 seconds. This method is called controlled demolition.
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Don't tell anyone that I told ya this..
Hard Science and the Collapse of the World Trade Center