Fire. Yes, WTC 7 was destroyed by fire. No thermite was used, thermite leaves evidence, products of themite, not found at the WTC. Thermite is an insane delusion invented by Jones, who also thinks the United States caused the earthquake in Haiti. The evidence you presented was corrosion. I suggest taking a chemical engineering course, or two.
Quoted.
Colour means little as well since as soon as it starts falling, for all we know the added windstream is causing it to burn, releasing more heat and keeping the reaction going until the mass of the 'blob' is too small to retain enough heat. (that is to say that the surface area to volume ratio gets larger) In the few instances when a 'blob' gets blown back and hits the building it shatters (wow I hesitated to say 'explode' for some odd reason) into a shower of white hot material.
No, The thinned and curled portions show exposure to sulphuric or nitric acid. I have seen pieces wind up like that when somebody forgot to watch his etching project.
funny thing about sulphuric acid. You can store it in a highly concentrated condition in a steel bottle. Add as little as ten percent water and it eats right through it.
