Quote:
Originally Posted by THE BIG APPLE
Let's look at this from your point of view. You said the towers fell becuase of fire mixed with jet fuel. So then they just happened to fall, and disappear into this air. If it was actually a pancake and structral collapse then wouldn't you see piles upon piles of floors sitting on top of each other. How were four, five, six World Trade Center still standing after the Twin Towers fell on them, and they had the closest proxmity to the Twins. But 7 WTC fell for the same reason the Twins supposedly did. SMALL FIRES.
How does fire have the energy to bend steel when it only burned at 1400-1600 F. Take a look.
Also another surprising thing about the steel found that day. The steel found after was cut at an angle. Why?
Demolitionists who are hired to wire buildings from the inside wire the steel columns at an angle like the one seen in the photo above.
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1) I didn't say anything about why the towers fell. I merely said that (a) you're confused by the distinction between flame color and heated steel color, (b) the WTC core was made from structural steel only, and not reinforced concrete, and (c) the steel didn't melt. As wong21fr clarified, the steel didn't have to melt - it simply needed enough heat in order to compromise its structural strength.
BTW, did you even read the last source I gave you? It would explain a lot, especially the difference between temperature and heat. Also, the paper is old, so don't take their explanation of why the towers collapsed as my viewpoint - I'm merely using one section of the paper that I feel is mostly valid still.
2) Fire itself doesn't have the "energy to bend steel". Steel bends under a force that exceeds its structural strength properties. In this case, the fire dramatically lowered its structural strength. And then, the different forces within the building bend the various steel columns and beams into whatever shape it turns into. And in the case of a building collapse, you can now add a lot of different dynamic forces that don't occur when a building is just standing.
3) Yes, demolition experts wire it that way because that's the way steel will be naturally cut when it fails in that manner. It's called shear failure. Those columns naturally sheared during the collapse of the towers.