Stanford physics professor fleshes out how WTC were felled

[glenn1]

Story link

Keep in mind, the building was hit with a projectile, moving hundreds of miles an hour, filled with explosive - the fuel," said Melvin Ramsey, a professor of structural engineering at the University of California, Davis. "That can damage a building where it can no longer sustain itself."

Russell Turner, an officer of Cal-Neva Construction Services Inc. in Sacramento, said that if the collapse of the twin towers resembled an implosion, it probably was because the building was pulled down by its own weight - a force used in demolition.

But the power that brought down the skyscraper was far greater than any explosives ever used by demolition crews.

By the calculation of Block, the Stanford physicist, the energy packed by one fully-fueled Boeing 767 jet is 40 times as great as the biggest non-atomic bomb ever dropped by the United States.

 

[j0lly]

interesting article.

 

[j0lly]

Here's another interesting article:

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[nicowju]

wow. Those buildings were REALLY REALLY WELL-BUILT. 40 times the strength of a non-atomic bomb... yikes

 

[Amused]

I firmly believe that had the WTC towers been constructed with a conventional steel 'skeleton,' it would have withstood the impact. Instead the towers were built wth a steel exoskeleton, and was supported mainly by its walls.

When you compare the 1945 B-25 bomber impact on the Empire State Building to the WTC impact, you'll notice that comapred in size, the B-25 was as big as the 757s in comparison to the width of the building. Why did the Empire State building survive with ease, and the WTC towers collapse?

The lack of a steel skeleton in the WTC allowed the planes to virtually pass right through the structure, and damage the supporting walls on the other sides of the building.

The steel skeleton of the ESB stopped the B-25 dead within the first offices.

Now, I know there is a dramatic difference in velocity and weight here, but when comparing the size of the aircraft to the size of the building, the B-25 was as large to the ESB as the 757s were to the WTC.

I certainly hope the WTC towers are the last pipe built structures to ever be constructed.

 

[j0lly]

<< I firmly believe that had the WTC towers been constructed with a conventional steel 'skeleton,' it would have withstood the impact.

When you compare the 1945 B-25 bomber impact on the Empire State Building to the WTC impact, you'll notice that comapred in size, the B-25 was as big as the 757s in comparison to the width of the building. Why did the Empire State building survive with ease, and the WTC towers collapse?

The lack of a steel skeleton in the WTC allowed the planes to virtually pass right through the structure, and damage the supporting walls on the other sides of the building.

The steel skeleton of the ESB stopped the B-25 dead within the first offices.

Now, I know there is a dramatic difference in velocity and weight here, but when comparing the size of the aircraft to the size of the building, the B-25 was as large to the ESB as the 757s were to the WTC.

I certainly hope the WTC towers are the last pipe built structures to ever be constructed. >>



I wonder if the terrosists researched this. :|