Quote:
Originally Posted by Vjo
There is no way the first tower (that collapsed) could collapse on it's own so quickly after being hit. It was the last hit (by the 2nd plane) and the first to go.
Steel doesnt melt till around 2800+ degrees. There is no way the steel frame heated that quickly throughout the building.
Steel frame structures do not pancake like a house of cards (or exactly like one under demolition).
Steel structures have burned for many hours and never once fell before. One in Japan was engulfed for over 18 hours and never fell. (as the vid above prob tells, did not view it, no need) This one burned for 45 mins (approx) and collapsed.
Acetylene torches are used to melt and cut hardened, high carbon steel (like frames in buildings) at over 2800 degrees, (blue-white flame, acetylene cutting torch, remember shop class?)
Normal fire like the one from Jet fuel burns around 1200 degrees.
These are all facts.
|
OK, here are some more facts:
The WTC was not just *a* steel building. It was one of the largest/ tallest buildings in the world. As such, it had special/ extra forces on it. A building like that doesn't need to have the steel "cut" or "melted" to demolish it. It only needs to have the heat *weaken* the trusses. When you take 10,000 gallons of jet fuel, and burn for a while with lots of flammable debris, and add in a huge initial impact to blow off any insulation --that's exactly what can happen.
Watch the NOVA documentary. In the film, you can actually see the exact moment or frame when the trusses fail.