Rule -> RE: The Big Lie! (4/19/2007 7:11:11 AM)
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ORIGINAL: luckydog1 I said that a massive impact AND the fire brought down the building. Quote: Frank De Martini, an architect who works as the World Trade Center’s construction manager, is interviewed for a History Channel documentary about the WTC towers. He says, “I believe the building probably could sustain multiple impacts of jetliners because this structure is like the mosquito netting on your screen door, this intense grid, and the jet plane is just a pencil puncturing the screen netting. It really does nothing to the screen netting”. [Dwyer and Flynn, 2005, pp. 149] Physicists have already calculated that the "massive" impact had negligible effect on the tower that was struck by the plane, due to the enormous inertial mass of the second tower. There is no evidence whatsoever that the first tower was also struck by a plane. I quote from http://www.lewrockwell.com/reynolds/reynolds12.html: "As many as 45 exterior columns between floors 94 and 98 on the northeast (impact) side of the North Tower were fractured – separated from each other – yet there is no direct evidence of "severe" structural weakening", and "About a dozen of the fragmented ends of exterior columns in the North Tower hole were bent but the bends faced the "wrong way" because they pointed toward the outside of the Tower". If anything, the effect of the fires in the wtc-towers was to reduce the load the floors and columns of the towers had to carry, as much mass was transported away in the smoke. This is one of the main reasons that the skeletons of buildings remain standing once a building is suffering from fire damage. I quote from http://www.tms.org/pubs/journals/JOM/0112/Eagar/Eagar-0112.html: "In a diffuse flame, the fuel and the oxidant are not mixed before ignition, but flow together in an uncontrolled manner and combust when the fuel/oxidant ratios reach values within the flammable range. A fireplace flame is a diffuse flame burning in air, as was the WTC fire. Diffuse flames generate the lowest heat intensities of the three flame types", and "temperatures in a residential fire are usually in the 500°C to 650°C range". I quote from http://rense.com/general59/ul.htm: "Your comments suggest that the steel was probably exposed to temperatures of only about 500F (250C), which is what one might expect from a thermodynamic analysis of the situation. However the summary of the new NIST report seems to ignore your findings, as it suggests that these low temperatures caused exposed bits of the building's steel core to "soften and buckle"(5). Additionally this summary states that the perimeter columns softened, yet your findings make clear that "most perimeter panels (157 of 160) saw no temperature above 250C". To soften steel for the purposes of forging, normally temperatures need to be above 1100C (6)".
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