Wednesday, February 07, 2007

The Guardian arvostelee Loose Change-elokuvan

Eikä arvostelu ole kovin mairitteleva. Kannattaa myös lukaista lukijoiden kommentteja. Niitä on kertynyt paljon.

Lainaus räjähdefirman johtajalta

Yritän aina parhaani mukaan välttää lainausten käyttöä argumenttien tukena, mutta tätä en voi vastustaa millään:

… only one said that he knew immediately, upon learning, from TV, of the planes' hitting the buildings, that the towers were going to fall. This was Mark Loizeaux, the president of Controlled Demolition Incorporated, a Maryland-based family business that specializes in reducing tall buildings to manageable pieces of rubble. "Within a nanosecond," he told me. "I said, 'It's coming down. And the second tower will fall first, because it was hit lower down.' "
And you've got these floor trusses, made of fairly thin metal, and fire protection has been knocked off most of them by the impact. And you have all this open space—clear span from perimeter to core—with no columns or partition walls, so the airplane is going to skid right through that space to the core, which doesn't have any reinforced concrete in it, just sheetrock covering steel, and the fire is going to spread everywhere immediately, and no fire-protection systems are working—the sprinkler heads shorn off by the airplanes, the water pipes in the core are likely cut. So what's going to happen? Floor A is going to fall onto floor B, which falls onto floor C; the unsupported columns will buckle; and the weight of everything above the crash site falls onto what remains below—bringing loads of two thousand pounds per square foot, plus the force of the impact, onto floors designed to bear one hundred pounds per square foot. It has to fall."
Loizeaux said that when he demolishes buildings he sometimes tries to make the top twist and fall sideways, which can generate enough "reverse thrust" to push the rest of the building the other way. "The top part of the south tower almost did fall off, which is what would happen in most buildings. Did you see how, when that top part started to fall, it began to rotate? If that piece had kept going out, it probably would have pushed the rest of the building the other way as it fell. But those long trusses saved the day—they gave way, guided that top downward just like a bullet through the barrel of a gun, and mitigated the damage." He added, "Let me tell you something. Far more people would have died if those buildings had been built differently. A conventional frame building would have fallen immediately—no question. Only a tube structure could have taken that hit and survived."

Mark Loizeaux, Controlled Demolition Incorporatedin johtaja. Sivu 24.

Labels: , ,