I just posted a link for you. IF you had bothered to read it, you would see that there are MULTIPLE links in that site. Lol. You aren't interested in the truth though. That much is obvious.
I have read it through many times...I doubt very much you have..but you made a claim of scientist debunking theories but this is a blog by someone with no credentials just like PM
They are debunked by legitimate scientists, physicists, etc.
So you keep saying but you have yet to present any
It's all in the link. Here, I'll post another one for you. Now, keep in mind, these are not YouTube videos, so I hope you can understand the material presented.
NOVA World Trade Center Collapse
of course it is a youtube video you ninny
No, it is not a YouTube video. You are apparently the ninny.
Here is an excerpt from the link, entitled TRANSCRIPT. Lol.
SECTION 1: THE INVESTIGATION
SHAYM SUNDER: I'm Shyam Sunder. I am the lead investigator for the World Trade Center investigation that was conducted by the National Institute of Standards in Technology.
In many typical investigations, you have a partially collapsed building standing there that can be looked at by engineers.
In the case of the World Trade Center towers, the buildings had collapsed. And also there was an immediate need for search and rescue of people who might have been buried under the rubble. So there was also a need to clear the site as quickly as possible. It's very unusual that the evidence is so completely scattered, and that made our investigation a lot more complicated.
We realized that we had to model the complete aircraft impact. We had to model the evolution of the fires over the next hour, or hour and half. We had to model how the steel weakened as a result of the high temperatures. And lastly, we had to model the progression of failures-- local failures in the structure, which then led to the overall initiation of collapse. Each of these stages had very sophisticated models that were validated using the photographic evidence we have, validated using laboratory experiments that we conducted. And validated, ultimately, based on how the buildings actually collapsed using videos.
SECTION 2: IMPACT
Through a fairly sophisticated analysis of the video information, we were able to determine the airplane speed, direction of the airplane, and the orientation of the airplane as each of the airplanes impacted each of the buildings.
The north tower was hit at 8:46 by a 767-200 extended range airplane, between the 93rd and the 99th floor. The airplane was flying at about 550 miles an hour, with a total weight of somewhere on the order of 283,000 pounds.
The second building to be hit, which was hit 16 minutes later, was hit on the south face of the south tower. Again by a 767-200 extended range airplane, but this time between floors 77 and 85.
And one of the questions that comes out from looking at this information is how is it here we have two seemingly similar buildings—they were called Twin Towers—and they were hit by nearly identical airplane, but how come one building lasted for 102 minutes, the other building lasted for 56 minutes, which is nearly a factor of two.