I've read quite a bit of your comments, and -- until this one -- thought you had a reasonably well-working head on your shoulders.
Have you ever heated a piece of steel?
Have you ever seen an oxy-acetylene torch in use -- or used one? Do you know what happens before the oxygen is turned on? Do you comprehend the chemistry of what happens afterward?
Your comment about LOX on charcoal is one of the most ludicrous non sequiturs I have heard -- since the last time 0b0z0 opened his yap...
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WTF did you think you were trying to say? Whatever it was, it appears that re-visiting 8th grade general science would do you a lot of good...
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Also,studying the WTC floor connector configuration and then watching this
-- until you understand it -- would benefit most posters on this thread...
Pardon my lack of a comprehensive peer-reviewed treatise on the subject. Others have provided that re: WTC collapse.
Start a HOT fire in such a building, and let it burn a while, and (exact chemistry escapes me, and I don’t know exactly which building materials were used) either the tempered steel loses its tempering (causing collapse), or you literally burn away the material (causing collapse). You’ll notice that whichever chemistry is involved, the consequence is collapse.
My LOX comment was retorting to the “my barbecue doesn’t melt/collapse” comment by observing that if you burn a sufficiently hot fire, your barbecue DOES melt/collapse (or as depending on materials, burn/collapse). It was also an excuse to reference something I found amusing.
And watching that video snippet shows the collapse beginning in exactly the area suffering intense heat, with the rest of the structure promptly following as a gazillion tons of upper building systematically crushes the some-weakened, some-overwhelmed supports.
And rather than insulting someone for not presenting perfect comprehension of a complex subject in a casual comment, how about you show YOUR advanced knowledge and explain to us what happens when a jet-fuel-and-office-materials fire burns for 45 minutes against structural supports for a couple dozen or so stores of very large building there above? Either the hardened/tempered metals involved weaken from prolonged exposure to intense heat, or they literally burn away - right? Do inform me.