http://www.concretecentre.com/main.asp?page=1095
Right.

Gojira hat geschrieben:Hi Jilved ^^
I know I wrote I´d probably won´t post again, but call me a liar, I have to do this post.
Those of you, who believe in the free press of his/her´s own country, I´d like to pose a question to you:
"What? Huh?! IMPEACHMENT DICK CHENEY!!!!!????" Thats what I thought when I saw this:
http://www.youtube.com/watch?v=bP6HgbtssFI
WHAT THE FUCK IS GOING ON WITH OUR MEDIA?
@ Cougar (and all the others of course too):
We struggled around a lot about the fall of the towers, temperature of steel, melting points, steel wires a.s.o.
I have some intersting aspects I´d like your critic reply to hear:
1) For example, the One Meridian Plaza fire in Philadelphia in 1991 burned for 18 hours and was described by local officials as
"The most significant fire in this century…The fire caused window breakage, cracking of granite, and failures of spandrel panel connections. Despite the severity and duration of the fire, as evidenced by the damage the building sustained, no part of the building collapsed… All other cases of large fires in steel framed buildings were characterized by extensive window breakage, large areas of emergent flames and went on for several hours. The fires in the WTC towers did none of these things.
Please Remember that the fires didn´t spread to other storeys- or did they? They always were close to the place of impact weren´t they? Did u see any inferno in the towers? When the plane hit the tower, I agree there´s a huge explosion, but then? Just small fires and lots lots lots of smoke...
If there was such an enormous heat to weaken even steel, why were the windows not broken? In any case, steel wired frames or not, reaching the necessary temperatures to make steel weak causes in any case the crash of the windows. You agree?
2) Virtually every piece of concrete material "shattered into dust." Where did the energy come from? Similarly, by what means was very fine concrete dust ejected from the top of the building very early in the collapse. Each collapse produced a lot of fine dust. Where does the energy come from to turn all this reinforced concrete into dust?
3) The speed of crashing down (Both towers fell within nearly 10 seconds which is free fall speed): "Can we really believe that the upper part of the buildings encountered virtually no resistance from the lower parts?" How "could the debris crush 100 steel and concrete floors while falling as fast as objects fall through air?"
4) The official story doesn’t explain why the South Tower collapsed first. Since it would take considerable time for fire to heat steel to its own temperature, all things equal, the South Tower, which was struck 17 minutes later than the North Tower, should have collapsed later, not 29 minutes earlier. This is even more surprising since the fires in the South Tower were much smaller. This "reversal of expectations suggests that the collapse of these buildings was caused by something other than the fires."
Explosion Not Collapse
Evidence of the use of explosives can be seen in that the Towers didn’t fall straight down, they exploded. Huge amounts of powder was "ejected horizontally from the building with such force that the buildings were surrounded by enormous dust clouds that were perhaps three times the width of the buildings themselves." Could any other power besides explosives turn concrete into powder and then eject it horizontally? And "some of the photographs show rather large pieces of the tower were thrown out 150 feet or more." (NPH, pp. 18-19)
Gerard Holmgren also points to the apparent floor-by-floor explosion (not collapse) of the Twin Towers and explains some of the physics involved. He finds that the conversion of the Towers into " a free falling collection of disconnected rubble," is possible only through "coordinated… demolition techniques." And:
As if that isn’t enough, we have the resistance paradox. This phrase has been coined to describe the fact that not only did the towers fall at a speed, which indicates negligible resistance, but at the same time they ground themselves into fine dust while still standing.
This is impossible under the law of conservation of energy.
If one were to postulate that somehow the entire building was—without any planning—miraculously and symmetrically disembodied, enabling it to fall without resistance, then it leaves nothing to explain the pulverization of the concrete. Such pulverization can only come from a high resistance collision. On the other hand, if you postulate extreme collision forces within the falling building, grinding the falling concrete into fine dust on its way down, then there is nothing to explain the resistance free fall of the speed. There can’t simultaneously be both high resistance—causing grinding of the concrete into dust—and negligible resistance allowing a fall at the same speed as through air.
Only the input of extra energy—an orchestrated demolition, explains the simultaneous presence of both factors.
I copied and pasted from here: http://desip.igc.org/NoPlanesOn911.html#6
ich dachte du wolltest mit deinen Theorien aufhören.
I do not want to believe Stijn, I want to comprehend- that´s a difference. And I have read things, that shattered my worldview.Bottom line is : what DO you want to believe?