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It was the #ing BBC in the UK, not some local news station:
originally posted by: democracydemo
a reply to: OtherSideOfTheCoin
Who the **** would you like it to be sponsored by? What source would do it neutral for you? Take a look at the results and Revisit.
originally posted by: OtherSideOfTheCoin
a reply to: GBP/JPY
Again the issue of the reporter saying it had collapsed when it was in the background has been explained. Essentially it happened after a local news station picked up communication from the FDNY saying that WTC7 was about to collapse, this was picked up by the BBC who then incorrectly said it had collapsed. I don't know about you but I am old enough to remember the confusion of that day so its really kind of surprising more of this didn't happen. Its like at the time of the Boston Bombings a few years back I clearly recall hearing a report about another bomb that had gone off only for it to be retracted 5 minutes later.
Most 9/11 conspiracies have these kind of simple explanations.
What I personally find really interesting is how many "Truthers" will ignore the very serious questions that have to be asked about the Saudi cover up. But I guess thats a chat for another time....
originally posted by: GBP/JPY
I'm a structures guy.....a Commercial heavy weight structures person
In the weekly meetings at big jobsites....I'm the one that takes over the meeting
a reply to: GBP/JPY
The Dumbing Down of Architects and Engineers for 9/11 Truth
Failure of Welded Floor Truss Connections from the Exterior Wall during Collapse of the World Trade Center Towers
Analysis of the connections supporting the composite floor system of the WTC towers showed that at and below the im- pact floors, the greater majority (above 90%) of the floor truss connections were either bent downward or completely re- moved from the exterior column. This was probably related to the overloading of the floors below the impact region after col- lapse initiation. Depending upon weld joint geometry, detachment of the main load-bearing seats was a result of either fracture in the heat affected zone of the base material (standoff plate detached from spandrel) or through the weld metal (seat angle detached from standoff plate). Failure in both cases was assumed to be a result of a shear mechanism as a result of overloading from floors above impacting those below. There did not appear to be a significant change in distribution of failure modes of the floor truss connections when comparing those connections inside vs. outside of the impact region or those ex- posed to pre-collapse fires and those that were not.
The destruction of the Twin Towers has been called "the most infamous paradigm" of progressive collapse. They began with the local failure of a few structural components and progressed to encompass the whole of the structure. Such collapses are characterized by "the separation of structural components (including non-load bearing elements), the release of gravitational energy, and the occurrence of impact forces." The vertical impact force supplies the propagating action, the principal forces are parallel, and the primary load transfer is serial. The key element in the structure that failed was constituted by the combined "vertical load-bearing members of one entire storey." Excepting the top floors of the building, which would not have released sufficient gravitational energy to bring about a total collapse, the collapses could have begun with the failure of any story.
Under these conditions, the towers collapsed symmetrically and more or less straight down, though there was some tilting of the tops of the towers and a significant amount of fallout to the sides. In both cases, the section of the building that had been damaged by the airplanes failed, which allowed the floors above the impact zone to fall onto the undamaged structure below. As the collapse progressed, dust and debris could be seen shooting out of the windows several floors below the advancing destruction, caused by the sudden rush of air from the upper levels.
During each collapse, large portions of the perimeter columns and possibly the cores were left without any lateral support, causing them to fall laterally towards the outside, pushed by the increasing pile of rubble. The result was that the walls peeled off and separated away from the buildings by a large distance (about 500 feet in some cases), hitting other neighboring buildings, and starting fires that would later lead to the collapse of Building 7. Some connections broke as the bolts snapped, leaving many panels randomly scattered. The first fragments of the outer walls of the collapsed North Tower struck the ground 11 seconds after the collapse started, and parts of the South Tower after 9 seconds. The lower portions of both buildings' cores (60 stories of WTC 1 and 40 stories of WTC 2) remained standing for up to 25 seconds after the start of the initial collapse before they too collapsed.
After the planes struck the buildings, but before the buildings collapsed, the cores of both towers consisted of three distinct sections. Above and below the impact floors, the cores consisted of what were essentially two rigid boxes; the steel in these sections was undamaged and had undergone no significant heating. The section between them, however, had sustained significant damage and, though they were not hot enough to melt it, the fires were weakening the structural steel.
As a result, the core columns were slowly being crushed, sustaining plastic and creep deformation from the weight of floors above. As the top section tried to move downward, however, the hat truss redistributed the load to the perimeter columns. Meanwhile, the perimeter columns and floors were also being weakened by the heat of the fires, and as the floors began to sag they pulled the exterior walls inwards. "The ensuing loss in vertical load-carrying capacity was confined to a few storeys but extended over the entire cross section of each tower." In the case of 2 WTC, the eastern face finally buckled, transferring its loads back to the failing core through the hat truss and initiating the collapse. Later, the south wall of 1 WTC buckled in the same way, and with similar consequences.
originally posted by: matafuchs
The only thing about 9/11 I still do not believe is I think we shot down 93.