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Originally posted by karen61057
reply to post by ReptileRipper
Oh I particularly like where you think that they would need charges to weaken the glass so the plane could get in. Thats halarious. Yes it was pretty heavy duty glass but still. A jumbo jet going through glass doesnt really need the way paved for it.
The perimeter structure was constructed with extensive use of prefabricated modular pieces, which consisted of three columns, three stories tall, connected by spandrel plates. The perimeter columns had a square cross section, 14 inches (36 cm) on a side, and were constructed of welded steel plate.[48] The thickness of the plates and grade of structural steel varied over the height of the tower, ranging from 36,000 to 100,000 pounds per square inch[49] (260 to 670 MPa). The strength of the steel and thickness of the steel plates decreased with height because they were required to support lesser amounts of building mass on higher floors.[48] The tube-frame design required 40 percent less structural steel than conventional building designs.[50] From the 7th floor to the ground level, and down to the foundation, the columns were spaced 10 feet (3 m) apart.[51] All columns were placed on bedrock, which, unlike that in Midtown Manhattan, where the bedrock is shallow, is at 65–85 feet (20–26 m) below the surface.[52]
The spandrel plates were welded to the columns to create the modular pieces off-site at the fabrication shop.[53] The modular pieces were typically 52 inches (1.3 m) deep, and extended for two full floors and half of two more floors.[48] Adjacent modules were bolted together, with the splices occurring at mid-span of the columns and spandrels. The spandrel plates were located at each floor, transmitting shear stress between columns, allowing them to work together in resisting lateral loads. The joints between modules were staggered vertically, so the column splices between adjacent modules were not at the same floor.[48]
en.wikipedia.org...
Originally posted by karen61057
reply to post by InformationAccount
That's not the oxygen igniting. Its the pressure of the tank that causes the explosion in that case.
Originally posted by karen61057
reply to post by InformationAccount
Well if your gonna tell us what answers you want and dont want what's the point of the thread. You only want opinions that match yours. And you know the truth so we wont get anyting past you right?
Its the nose of the plane hitting the building. You didnt see a flash when the wings hit because there was already dust and smoke filling the air .
Originally posted by waypastvne
Originally posted by ReptileRipper
dude youve got me lost here .
That's because you are a truther and easily confused when it comes to reality. I'll repost the important part for you again since you couldn't find it the first time:
The nose wheel undercarriage was located directly in front of of the E&E room and would have been the first major part of the plane to impact. When GPers say hollow aluminum can, they are neglecting things like this. On impact this undercarriage would decelerate wile the rest of the plane continued forward. So the under carriage smashed through the E&E room as well as knocking a large hole in the building. This is why the flash happens outside of the wall and gives the illusion of happening before impact.
Originally posted by karen61057
reply to post by InformationAccount
That's not the oxygen igniting. Its the pressure of the tank that causes the explosion in that case.
Originally posted by ReptileRipper
wouldnt explosives and a fake plane sound a little more like ... reality ?
Originally posted by karen61057
reply to post by InformationAccount
Is oxygen flamable?
Originally posted by waypastvne
Originally posted by karen61057
reply to post by InformationAccount
Is oxygen flamable?
Originally posted by Shadow Herder
I always believed the flash was caused by the air being compressed in front of the plane like we would see in a plane hitting the speed of sound (sonic boom).
Originally posted by waypastvne
reply to post by ReptileRipper
It's a simple question; How do you think explosives work ?
Originally posted by ReptileRipper
yeah ... and this is a simple question ... how did they dodge the steel ?