For those interested in real science and reality.
Aluminum melts at 660.5 degrees Celsius. A fuel fed carbon fire can reach temperatures as high as 2000 degrees Celsius under the right circumstances. It's more likely that an open flame uncontrolled fire under the circumstances witnessed in the WTC, would have burned at closer to 700, to 800 C. That takes care of the molten metal dripping from the windows.
Now for the steel, even the highest quality structural steel is susceptible to heat degradation. This is completely commonsense to myself and anyone else that works with steel for a living, or has taken the time to read real science on the stuff and not been fed someone else' silly ideas.
We already know, and can easily prove from a multitude of sources, that a fuel fed carbon fire can reach temperatures in excess of 1500 C. And under certain circumstances, reach temps in the range of 2000 C.
The WTC's structural columns and joists, were A36 Structural steel. To weaken this material, a temperature of 500, to 600 C, needs to be reached. This process is called 'annealing'. Under controlled processes, it is what we do to soften steel, to making cold working easier, or to relieve stresses. Given the fact that the fires could have easily reached 1000 C in that confined, high fuel environment. It is NOT beyond any reason to expect the catastrophic failure of any steel structure within the fire.
These are all simple verifiable facts, so I'm sure most C/T's will either ignore it or just become insulting.
Read this, it is the simplest and most comprehensive book for the noob to structural steel and the affects of heat.
Hell, I even found an online copy for them to read...
Structural steel selection ... - Google Books (external - login to view)
When you're done with that, try this one...
Structural steel design - Google Books (external - login to view)
If any of you had an actual clue about the reality of steel, construction, explosives or anything practical for that matter, this wouldn't be an issue.
Now, do I really have to post all about Thermite, 'super' Thermite and 'nano' Thermite again?
I mean really? 'nano' Thermite is a micro welding compound, so unless you're planing on welding minute instriments, it's pretty much useless. 'super' thermite doesn't even exist. And Thermite is a welding compound, commonly used by rail companies to weld steel rails together for smoother rail service. Sure it can cut, horizontally and straight down.
This too is commonsense. All one needs to do is contact a company like CORRTECH and ask for the material specs. It really is that simple. Which is why so many C/T's have such difficulty getting it I guess.