Maturin42's Blog

Monday, November 26, 2007

Circumstances demand new investigation of 9/11

One aspect of 9/11 doesn't get mentioned much or get the attention it should, in view of the enormous implications.

I speak, of course, of the incredible weakness in our engineering and construction standards, as represented by the collapse of threesteel-framed skyscrapers in a fire.

Before 9/11, we used the term "fireproof" to convey that steel-frame construction would maintain structural integrity if a fire broke out. In fact, the north tower suffered a serious fire in 1975 of several hours' duration, covering 65 percent of the 11th floor; the steel frame took it in stride and did not even require replacement.

But when the towers were struck by aircraft, although designed to withstand that type of damage, they behaved strangely. The jet fuel (kerosene) burned out quickly,but the residual fire caused global collapse -- the first in history of such a building. Other high-rise buildings have burned longer and hotter, yet did not collapse.

Now, three on the same day belonging to the same real-estate mogul turned into powder and twisted steel, or took a "Las Vegas dive."

Trees fall all the time. It happens for a variety of reasons -- wind, saws, fire, even explosives. But should a giant sequoia suddenly disintegrate into a pile of sawdust, we would think it worth investigating.

World Trade Center Buildings 1, 2 and 7 were designed to stand up and they did -- until suddenly the towers disintegrated into powder and Building 7 imploded.

Real investigation, anyone? See



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