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Originally posted by Darkwing01
reply to post by pteridine
One "iron-rich-sphere" is hardly diagnostic of thermite.
How else do you think it got onto that chip?
More important, provide proof of your theory.
A conventional quantitative analysis routine was used to estimate the elemental contents. In the case of this iron-rich spheroid, the iron content exceeds the oxygen content by approximately a factor of two, so substantial elemental iron must be present. This result was repeated in other iron-rich spheroids in the post-DSC sample as well as in spots in the residue which did not form into spheres. Spheroids were observed with Fe:O ratios up to approximately 4:1. Other iron-rich spheres were found in the post-DSC residue which contained iron along with aluminum and oxygen (see Discussion section).
In the product collected after DSC ignition, we found spheres which were not initially present. Many of these spheres were iron rich and elemental iron was found in the post-ignition debris.
We cannot determine at this time, however, whether the thinness of the chips resulted from the application method or the manner of reaction.
Originally posted by NIcon
That's another interesting stance.
Also, a person who thoroughly read the paper would notice that they show XEDS from two spheres.
Also a person who read the paper would realize that answering the question of how a thin layer of this stuff would affect the towers is unnecessary at this point, as the paper concludes:
We cannot determine at this time, however, whether the thinness of the chips resulted from the application method or the manner of reaction.
“Super-thermite electric matches” have been developed at Los Alamos National Laboratory for which “applications include triggering explosives for ... demolition” [30]. It is indeed possible that such matches, which are designed to be ignited by a simple electric pulse, could contain material similar to the red material we have found in the WTC dust.
Originally posted by NIcon
If a person had actually read the paper they would realize that their suggestion the material may be from electric matches did not come after the critics pointed out "it would barely warm the steel."
If a person actually read the paper that person would have realized that suggestion was all ready in the paper as follows:
“Super-thermite electric matches” have been developed at Los Alamos National Laboratory for which “applications include triggering explosives for ... demolition” [30]. It is indeed possible that such matches, which are designed to be ignited by a simple electric pulse, could contain material similar to the red material we have found in the WTC dust.
If a person actually read the above they would realize the suggestion of the possiblity they were from "electric matches" was formed before critiques of it's "warming" properties.
A person can see all of this if a person just chooses to read the paper, rather than just relying on their distrust and preconceived notions.
Originally posted by Darkwing01
reply to post by pteridine
This is one reason why the Viton thermite experiment is enlightening. Here we see similar particles in a substance that was not painted on.
If Jones was wrong about painting on thermite it would strengthen his position that thermite was used. I wouldn't be surprised if the method demonstrated by Cole was the actual one used, but there is no reason to suppose that someone couldn't have thought painting it on would help for some reason and it didn't, in addition to some other application.
It could have been painted on whether or not painting it on had any real impact on the demolition, but there is no real reason to suppose that it was ever painted on in the first place. If you distrust Jones in everything else, why suddenly take his word on what he would almost certainly readily admit was little more than idle musing.
Originally posted by turbofan
reply to post by pteridine
I'm waiting for a reply from the experts, but until then:
Pteridine, please explain what caused the high peak, and narrow exotherm in the DSC which was more explosive
and more energetic than nano-thermite.
You continue to claim that "paint" caused this through combustion, however I'm baffled by how anyone could
believe that combusiton can produce a more narrow trace than a known explosive mixture under the same conditions.
The trace of a DSC is not an intrinsic property of the analyte. That means that the shape and amplitude can be changed by experimental conditions, such as heat rate, sweep gas, total pressure, container material, and so on. Note also that the Jones exotherm is multi-modal, showing an initial rise at about 220C, a peak about 280C, small peaks at ~400 and 410C and the large peak at around 430C. One can speculate as to the causes of such but the peaks are generally not definitive in themselves when dealing with an unknown. Some transitions are well known such as endothermic loss of sorbed water starting at 100C, but one cannot claim proof of thermite based on the comparison of DSC traces.
The trace of a DSC is not an intrinsic property of the analyte
One can speculate as to the causes of such but the peaks are generally not definitive in themselves when dealing with an unknown.
Originally posted by Darkwing01
reply to post by pteridine
I love this post.
Let's read that again:
The trace of a DSC is not an intrinsic property of the analyte
And this bit:
One can speculate as to the causes of such but the peaks are generally not definitive in themselves when dealing with an unknown.
So where does your argument that this is NOT thermite because of the DSC traces fit in here?
I am happy that you loved my post. I never argued that "this is NOT thermite because of the DSC traces." The argument is that the DSC traces don't prove thermite.
The exotherm calculations based on the DSC data show that combustion is occurring. If combustion is definitely occurring, the exotherm can't be solely ascribed to thermite.
In fact, we have no evidence that thermite reactions are occurring at all.