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Originally Posted by stickyfingerzdotnet
Ok take a straw. Hold it on your desk and press down on it with a bit of pressure. Now take lighter and hold in close to the straw about just brushing besides the straw.
Now that is what happened to the steel girders. They didnt necessarily melt, but the heat plus the pressure plus the stress from the crash caused them to begin to buckle. Many many engineers have said this was the cause.
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ok i can buy that ( i would buy it more from a structural engineer and i happen to know a few that dont agree but i will give you the benefit of the doubt ) , now why dont they release the 3 videos of the plane hitting the pentagon ?