To those who suggest that photographs of the 9/11 attack on the WTC and its aftermath constitute the primary physical evidence used by NIST, I would respond with a question about the all-important WTC steel: photographs of steel recovered from GZ provide physical evidence of exactly what? So yes I agree, the NIST Report has lots of photos of pieces of steel; but what use are these images? Do NIST tell us where each steel section was first located in the rubble pile? (A useful piece of information to be sure…) No, NIST does not! Do the photos allow NIST to estimate the maximum temperatures seen by the steel? Negatory on that one too! Do the photos tell us anything about the surface chemistry of the steel? No, the photos convey no chemical information whatsoever!
And talking of chemical analysis: the NIST Report manages one table of surface analysis data, yes, just ONE TABLE, in 10,000 pages. And that table provides data for 3 samples! And does NIST have much to say about these data? Well actually, no ….. NIST comments on the high S seen on a couple of samples, but completely ignores the high Cl observed on sample K-16. So NIST really makes no use of what little chemical analysis it managed to carry out on WTC samples. But where is the chemical analysis data for even a couple of the failed welds and bolts? And where is the analytical data for the concrete?
So what I see is that the NIST Report is not scientific at all, but is perhaps better described as a feel-good narrative created by some imaginative engineers to satisfy the self-fulfilling prophecy of the warmongering oligarchs running the US of A. (How does that story go again? Oh yes, a bunch of crazy Saudi and Egyptian nationals attacked the American homeland so let’s go bomb Iraq!)
Anyway, back to the 9/11 science, or lack thereof…. Let’s be honest, the NIST 9/11 narrative is based almost entirely on computer simulations that could hardly be considered as “forensic evidence”. NIST's cartoons may be acceptable to some engineers and “kids” hooked on computer-generated Hollywood special effects, but would such simulacra "stand up in court". I think not!
Consider NIST’s aircraft impact modeling as an example: If you read NCSTAR 1-2, 1-2B, 1-5A and 1-6 you find all sorts of discrepancies between the observed behavior of the aircraft, the impact debris and NIST’s global impact analysis. NIST argue that the fuel was almost completely aerosolized within 0.5 seconds of impact, but in reality fuel is known to have poured down elevator shafts. NIST’s model says that, with the exception of the engines and undercarriage, the aircraft were shredded into “thousands of fragments”. This is contradicted by the large sections of fuselage that were found outside the towers with nary a scratch! Then we have the trajectories of the engines themselves which came out all wrong in NIST’s first simulations until those creative computer programmers “tweaked” the calculations to make an engine exit WTC 2 as observed. In what sense is NIST being scientific with all these false predictions of its models?
I believe NIST should have come clean from the very start and admitted that the building failure site it was mandated to examine was so compromised by clean-up operations of the debris and the all-important structural steel, that any report it could produce on the demise of the Twin Towers could only conclude: cause of death: “unknown”.