... especially when much more likely candidates were abundant. When challenged to produce some credible evidence of this "molten steel," the best that "truthers" seem to be able to do is show a photo of some glowing steel or a photo of steel that was eroded by eutectic intergranular melting which happened well below the ordinary melting point of steel. I've asked this before and never got an answer: We know there were thousands of tons of aluminum in the rubble, and we know that aluminum can melt in an office fire like that, so why is it that nobody reported seeing any molten aluminum? Couldn't be because they misidentified it, huh.
> What is your explanation for the iron spheres?
In the first place, you don't know when the iron spheres were produced -- before, after, or during the collapse -- so simply assuming they were produced during the collapse will not lead to any valid logic.
Secondly, since there are lots of sources of iron microspheres before and after the collapse (e.g. from brake pads and clutches, from fly ash in the concrete, or from all the steel that was cut with torches during the cleanup), experts expected to find them in the WTC dust -- no supernanothermite required. In fact, the spectra that Jones has published are not all the same, implying that they come from many different sources. So the question is, if we should expect iron microspheres in the dust from common sources, show me which ones were produced by thermite and how you separated them out from the common ones.
And third, since iron microspheres are abundantly produced in coal-fired boilers and trash incinerators burning paper, cardboard and wood -- i.e. hydrocarbon fires that don't themselves reach the temperature of melting steel -- it's absurd to assert that thermite is required to produce them. One reason that happens is because very small or thin pieces of steel can be ignited by a hydrocarbon fire, and the burning itself produces enough heat to melt the unburned steel. The simple proof of that is to light a piece of steel wool with a Bic lighter and then check for microspheres. So, at least some of the microspheres found in the dust could have been produced in the weeks-long fire -- no thermite required.
In short, the whole microspheres = thermite = controlled demolition argument is just invalid logic slapped on top of false premises.
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