The Strange Collapse of the Spire
An odd remnant of the core of the north tower remained standing for about 15 seconds after the main collapse, then seemed to abruptly disintegrate into a narrow column of dust where huge steel box columns had been...
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Given that the rest of the core disappears so completely it is hard to understand how the collapse could slice so cleanly around the spire without pulling it down as well. The core was extremely robust, designed to be able to support the entire weight of the buildings several times over and was the principal gravitational support of the building. Far from being mere "service cores," they comprised 47 rectangular steel box columns tied together by thousands of steel cross braces. The largest of these box columns were 18"x36", the smallest about 16"x16", all with steel walls 4" thick at the base and tapering in stages to 1" at the top the top, and were anchored directly to the bedrock.
The outer walls' primary function was to brace against wind loads, and they were not counted upon for weight bearing, though they did of course carry some weight in the resting state. By placing the support against wind loading right at the surface where the loads occur the whole structure could be lighter with the same amount of lateral stability. But under static conditions the core carried most of the load.
{IMAGE}
This construction picture gives a sense of how massive the core really was. Notice the four construction cranes standing on the corners of the partially built core. These sat on built-up columns created at each corner and were formed by tying together the four columns closest to each corner. Diagonal braces were also added on the vertical sides to make them more rigid. These corner columns were very substantial structures that were gradually added to as the building grew, and were designed to support the massive cranes and the weight of the materials they lifted into place.
{Video Clips of the Disintegration}
In this view the spire can be seen in the wake of the debris cloud just as it reaches the ground. (And incidentally at that moment the scene to the left of the dust cloud gets much brighter, a brightness visible in many images. Its possible source is beyond the scope of this discussion.) This remnant of the core remains standing for a little less than 20 seconds, swaying a bit from side to side but showing remarkably little inclination to topple over. It then abruptly begins to drop straight down on itself in an apparent free fall, but after falling for about a quarter of its height it suddenly turns to dust. It is heavy dust that continues to drop straight down in place with very little dispersion or wind drift, suggesting that the particles were dense, more or less what one would expect to see if the steel of the columns had turned all at once into a coarse powder. {Sounds a lot like Wood?}
{Pictures of the Disintegration}
Beyond the mysterious shattering and disappearance of the upper ~30% of the core, there is a much more serious anomaly. The "spire" stood for about 20 seconds after the debris cloud fell away from around it, swaying slightly without tipping over despite its height and lack of support. It then began to drop straight down in place, but after dropping only a little way it abruptly turned into dust in place, very much as the towers themselves did.
We can use the left-hand edge of WTC-7 as a reference to mark the position of the spire relative to the original tower. The framing of the picture changes and the view pulls back to a wider angle as we go through the sequence, making WTC-7 get smaller and move a little to the right. Despite this shift we can see that the top of the spire as seen in the last picture just matches the midline of the intact tower in the first frame, indicating that it was part of the core.
But if the spire represents a part of the core, there is something else shown here that is very unusual. Why does main dust cloud from the collapse move off to the left, leaving the spire off by itself? In fact the spire has a smaller dust cloud of its own that can be seen in the second and third frames, a remnant left behind as the axis of the collapse shifts, but most of the material in the cloud is now off to the left, still in a more or less cylindrical distribution. The midline of the collapse actually shifted during the collapse; this very dense pyroclastic slurry of pulverized concrete, gypsum and building contents somehow shifted its center of mass away from its original location, centered on the core. And what is that odd vertical cloud of smoke at the center? A gravitational collapse should create a net downward movement of the dust cloud, without such a vertical jet of smoke. In fact close-up pictures of the WTC-2 collapse show the debris cloud being pulled back in toward the center of the collapse, indicating a negative pressure.
Some Thoughts in the Face of the Impossible
What could possibly be going on here? I really wish this were an artifact, that the resolution of the images wasn't good enough to quite make out what is going on. But the remarkable consistency between what we see in the video clip and in the still images, particularly the single shot taken the instant after it had turned to dust, creates the unavoidable impression that in some mysterious way the steel columns shatter into dust. Could stresses generated during the collapse have weakened the steel? Perhaps the shockwaves of those "dust ejections" (whatever name you may apply, they look a lot like explosions) that we saw during the collapses has changed the microcrystalline grain structure of the remaining steel in such a way that it became extremely brittle. Something very unusual has happened to these particular steel beams, something that caused them to not merely topple or crumple in segments but to disintegrate in place. It is difficult to imagine any mechanism during a gravity driven collapse that could so alter the structure of steel that it might disintegrate under its own weight - no amount of shaking can create that kind of metal fatigue.
The selectivity of the initial collapse that left behind this portion of the core while removing the rest is also difficult to explain. Consider how cleanly the cross-braces have been sliced off along that single column at the top, short pieces of the vertical plates welded to each of the core columns sheared off without so much as generating enough force to pull down this single unsupported column. Something very energetic has removed the rest of the building from around this slender structure with remarkable delicacy, shattering and utterly removing all but this small bundle of surviving columns. And at the same time something has caused the center of mass of the thousands of tons of debris from the building to shift several hundred feet from the original location during the ten seconds or so of its collapse, leaving the spire well outside the debris cloud that has spawned it. This cannot be wind drift, for the debris cloud was much too dense and fast-moving to drift like smoke.
Could electrostatic forces generated by movement of particles account for some of this? Could the pyroclastic slurry of the collapse function like a thunderhead or Van de Graff generator, perhaps accounting for the visible glow as well as the displacement of the dust cloud? Could electrostatic repulsion somehow push the dust cloud off to the side? The final bimodal dust cloud seems very inconsistent with the extreme symmetry of the early stages of the collapse, so some asymmetric force must be at work. And could the force involved also have created the bright glow visible in so many images of the collapses? The following picture (from Eric Huffschmid's "Painful Questions") shows the glow on the upper left, with debris flying out in all directions, but in an oddly asymmetric pattern:
Something inescapably strange is going on in these pictures, something no official explanation of the collapses has come close to accounting for. Beyond this I make no claims, and have no insider knowledge. Based on the photographic evidence there can be no question that explosives, and possibly other weapons systems based on "black technologies" were used in the WTC demolitions. Otherwise one can only suppose that the laws of physics underwent a profound but temporary change on September 11, 2001, as indeed the political and moral climate of our country underwent a dark and fateful change. And it is precisely this change that was clearly the intent behind the vast high-tech magic show that was 9/11. In politics as in physics, things do not happen for no reason.
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