anthony @ 17:09 BST
Glaring and damning errors already apparent in new BBC WTC 7 hit piece
No BBC, WTC 7 Did Not Collapse “Due To Fire” & The Final 9/11 Mystery Is Not Solved
Movies I Made To Counter The BBC’s Argument That “The Final Mystery Of 9/11″ Has Been Solved
WTC 7 isn’t the final mystery, it is one in a row of mysteries
BBC Set To Launch New Smear Attack On 9/11 Truth
Paul Joseph Watson | Prison Planet | Tuesday, July 8, 2008
The BBC’s embarrassing attempt to dig itself out of a hole that keeps getting deeper was again exemplified during their latest yellow journalism hit piece on 9/11 truth, in which they played Larry Silverstein’s “pull it” comment but edited out the most important part of the statement, and in doing so changed its context altogether.
An army of informed truth activists are almost tripping over each other to point out the gargantuan number of errors, ad hominem smear tactics, bias and shoddy investigative techniques displayed in the program which aired Sunday in the UK.
Just one such example concerns WTC complex leaseholder Larry Silverstein’s infamous “pull it” comment which can be viewed in its entirety below with other clips included for context in confirming that the term “pull it” is industry jargon for deliberately demolishing a building.
Watch the clip.
However, in the BBC’s attempt to convince the viewer that “pull it” meant to withdraw firefighters from the building, despite the fact that according to NIST’s WTC collapse lead investigator Shyam Sunder, “There was no firefighting in WTC 7,” and additionally the FEMA report, which stated “No manual firefighting actions were taken by FDNY,” the editors carefully snipped out the last portion of Silverstein’s comments where he states, “and then we watched the building collapse.”
Cycle through to 20 minutes into the clip to spot the edit.
By deliberately removing “and then we watched the building collapse,” the BBC has performed a hatchet job on the whole context of the statement by censoring the fact that the collapse of WTC 7 was a consequence of the decision to “pull” the building.
The BBC’s zealous efforts to redeem its name by ceaselessly attacking the 9/11 truth movement accelerated after the broadcaster was shamed when footage from 9/11 emerged of their correspondent Jane Standley reporting that WTC 7 had collapsed even as it remained standing in the shot behind her head.
Questions as to how this could have happened and allegations that news corporations, whether wittingly or unwittingly, were being fed a script on the day of 9/11 as it unfolded were met with hostility, and the BBC claimed it had “lost” the tape.
The tape was miraculously “discovered” again on the eve of the broadcast of their latest hit piece but the footage was not shown in the program, presumably to avoid further embarrassment.
Below you can read articles concerning the mountain of other lies contained in the hit piece and watch a discussion about the program with Alex Jones and Jason Bermas.
We will be picking apart the BBC’s latest atrocious effort to claim they have “solved the final mystery of 9/11″ over the course of this week with multiple investigative reports and as we did last time – debunk this latest hit piece as nothing more than the revolting stench of yellow journalism.
The BBC has no credibility when it reported the building fell 20 some minutes before it did, period.
http://video.google.com/videoplay?docid=-4437883523511945930
The BBC would be better off trying to find the missing trillions reported by Rumsfeld on 9-10-2001.
I wonder how much fraud was covered up by the collapse of all 3 WTC buildings. The Pentagon?
It reminds me of those mysterious fires in Iraq where fires burn on certain floors for hours where certain records are kept.
Right as rain teak…
The BBC was a a good news source before the invasion of Iraq, but has become compliant with the Neocons since the David Kelly story which put Tony Blair on the spot for lying about WMD’s. David Kelly ended up dead, and the head of BBC had to resign, taking two of his reporters with him.
Excellent article Anthony…
Apparently the BBC video has not been shown here yet. Arthur Scheuerman just commented a while ago that he hasn’t been able to find it either…G:
The BBC article can be seen here.
Arthur Scheuerman left a long comment on a post on my own blog, No BBC, WTC 7 Did Not Collapse “Due To Fire” & The Final 9/11 Mystery Is Not Solved, which I reproduce below:
Reports of Controlled Demolition, Molten Steel, Thermite, etc.
Many people interpreted the loud sounds and debris being projected out sideways during the Tower collapses as an indication that explosives were used to demolish the buildings. Most of these ‘explosive’ sounds, heard during the collapses were heard after the collapses began. In order for an explosion to cause a collapse it would have to occur before the collapse. The undamaged exterior walls can be seen bending and buckling inward in the videos of both Towers long before any sounds or ground vibrations occurred. In Tower 2, the exterior columns in the east wall were photographed bowing inward up to 10 inches, 18 minutes after the plane’s impact. That’s 38 minutes before the global collapse began. To be technical, you could say that Tower 2’s collapse began slowly, with possibly some noise or impact sounds from falling floors, about 38 minutes earlier than the official collapse time. The explosive sounds and expanding dust clouds occurred just after the east wall buckled inward and started the collapse, and not before the buckling, as would have had to have happened with controlled demolition.
When the undamaged south wall of Tower 1 was photographed it was bowing inward up to 55 inches on floors 95 to 101, about six minutes before these columns were seen buckling inward. This bowing was witnessed and video taped by the Police Aviation Unit. In the North Tower “thunder” sounds were heard when some floors apparently collapsed on the south side 12 to 14 seconds before the top of the building was seen to tilt southward and begin falling as a unit starting the global collapse. Since each section of floor on the long-span side weighed about 500 tons, I would explore these ‘explosive’ sounds in Tower 1 as evidence of a floor or floors detaching and impacting the floors below on the south side which most probably accelerated south wall failure. I believe practically all the supposed ‘explosive’ sounds can be explained by the impacts made by the collapsing buildings after the columns were pulled in and buckled by the bowing and sagging floors and when the floors themselves began impacting the floors below. The boom, boom, boom, boom, boom repetitive ‘explosive’ sounds reported by firefighters running as Tower 2 was coming down were most likely caused by the sequential collision of impacting floors after the top of the building began falling. The great quantity of air on each floor being compressed in a fraction of a second by great weight and momentum would propel air, smoke, and any concrete dust and debris outward at great velocity.
Initial Collapse Cause
Much has been made of the fact that NIST only analyzed the events up to the point where the Towers were poised to collapse before runaway collapse began and failed to pursue the remaining collapse. This was largely because after collapse began the chaotic impacts of the floors, walls and columns colliding could not possibly be analyzed accurately with even the strongest computers. As it was, it was a severe strain on computer capabilities to analyze the mechanism of collapse up to the point of runaway disintegration.
It is clear from the computer studies that the heat from the fires caused differential expansion of the steel parts in the long span, floor trusses with the resulting thermal bowing in some floors directly exerting pull-in forces on the exterior columns or this thermal bowing could have detached a floor which would have impacted the floor below destroying composite action by separating the concrete slab from the trusses and inducing strong tensile (suspension) forces in the double weighted floor. In other floors thermal expansion of the floor against the columns compressed the trusses which along with shear forces within the trusses that buckled the diagonal struts collapsing the trusses which went into suspension (catenary action) and this also helped pull-in and eventually buckle the exterior column walls. Differential thermal expansion of the concrete and steel has also been shown by NIST to disconnect the knuckles (knuckles are the steel tops of the bent over bars in the trusses which are imbedded in the concrete slab) from the concrete slab causing loss of composite behavior in the floors. All these adverse floor truss effects were caused by steel expansion which begins immediately as the steel is heated. Bowing and buckling can happen at low temperatures (400 C to 500 C) even before the steel would have weakened excessively from higher temperatures. Thermal contraction caused by cooling of sagging trusses or ‘I’ beams after the fire ‘burns out’ or dies down can cause strong pull-in forces on the exterior columns and core columns due to the contraction of the steel trusses or ‘I’ beams. Once the exterior columns buckling spread, along an entire wall removing support on one face, the buckling spread around the towers exterior and into the core and the towers began to tilt and with all the columns buckled the leaning top sections of the tower began to fall straight down. Although the North tower antenna appeared from some northern angles to have began falling straight down it actually tilted to the south because the south wall buckled first and the effectively cantilevered top building section pulled the core over to the south. The South Tower’s top tilted to the east because its east wall buckled first. With the tower top tilting all the columns would be out of alignment.
Once the core columns got out of plumb, there would have been little resistance to their buckling at the weak splices. With the incredible weight of the top of the buildings gaining momentum, like a heavy wedge or sledge all it had to do was break the welded, and single bolt connections holding the floors to the columns. This coupled with the fact that the falling top section’s momentum increases as the square of the number of floors impacted as the floors were detached and added to the weight of the descending top. There would have been little resistance to slow the top section’s acceleration to the ground. Because this acceleration due to gravity increased the speed and momentum of the collapsing floors and building top, the impacts were increasingly violent as shown on the seismic graphs; increasing in amplitude until maximum when the mass of accumulated floors hit bedrock seven stories into the cellar.
In order for a column to support the loads it has to be plumb and in line with the columns above and below. The fact is, columns have to be axially (in line and centered) aligned to support the weight of the building above. If they get out of alignment by 10 to 20 degrees they buckle and can no longer support the weight. The buildings collapsed because the floors first caved in from restrained thermal expansion and from thermal bowing or delamination of the slab and bar joists affecting floor truss stability. The sagging floor trusses gradually pulled in the 59 columns in one exterior wall in each tower and the column walls eventually buckled removing support on one side.
There have been some engineering analyses about the impacting floors slowing down the collapse so that the time to collapse should have been much longer than ‘free fall’ times of an object dropped from the towers tops. Once the buildings started to tip over from loss of column support on one side, the tremendous excess eccentric weight began buckling all the columns across the building. Once the tilted building’s tops began descending they hit the floors or columns at eccentric angles which easily detached the floors and buckled the columns. In order for the lower building section to offer any meaningful resistance to the falling building top the columns would have had to hit each other exactly in line and plumb and this was impossible with the top of the building leaning causing eccentric angles of impact. Once the top building section began tilting the columns on the side that originally buckled did not line up at all. These columns would have been hitting the floors and would have easily detached or buckled them. After the east wall buckled in Tower 2 the adjacent perimeter wall columns buckled from overloads and the columns on the opposite west side of the building, which acted as a hinge would still be bearing on each other but at an eccentric angle which means they also would have also eventually buckled as the top tilted. These columns along with some of the core columns as they buckled are probably what kicked the bottom of the top building section to the west as reported by NIST. Because of the weight of the accumulating collapsing floors, there was a release of incredible potential energy changing to kinetic energy and building momentum as the accumulating chaotic mass of debris accelerated into the cellars.
Since the Tower’s outer wall columns, especially in Tower 1, pealed out like a banana after the building top began to impact the floors, these wall columns may have been able to break the connections to the floors ahead of the floors being impacted? In other words, with the weight of the wall columns pealing outward from the vertical along with the added horizontal forces of impacting floors projecting debris outwards onto these columns. In other words these columns, while leaning out, might have been able to break the wall-to-floor connections ahead of the level of impacting floors? If this is possible than I believe that the connection failures could have traveled down the sides of the buildings at a speed faster than free fall times. This might explain the rapid collapses especially in Tower 1. The wall-to-floor connection failures could have traveled down the building sides faster than ‘free fall’ times and in effect started the floors falling before they were impacted by the accumulating mass of impacted floors above.
The heavy exterior wall columns in the 1500 foot high buildings while pealing off could project the column sections outwards a great distance. This distance (500 feet) was proposed as only being made possible by explosive forces. I disagree. If a wall is strong enough and doesn’t break up as it falls outward it can fall out flat to a distance equal to its height. The Tower walls, however, did break at the weak splices as they fell.
The compression of air in the elevator and air-conditioning shafts by the collapsing upper building section and floors, would project air, smoke, and dust down these shafts and out of the air intake or discharge openings on the lower mechanical equipment floors in the exterior walls. This accounts for the plumes of smoke seen projecting outwards sideways from the buildings well below the collapsing floors. There were quite extensive vertical HVAC shafts built into the building. These shafts are connected to air conditioning exhaust and intake ducts open to the exterior on the mechanical floors. Collapse of these shafts would force the dust and smoke out these HVAC openings in the side of the building.
The lightweight aluminum cladding’s breaking free from the buckling columns also would have been propelled outward a great distance by this expanding cloud of air and dust. This would account for huge dust clouds and pieces of aluminum seen projected outwards from the upper sections of the collapsing buildings. The light reflected off these aluminum pieces at the north wall of Tower 2 would be interpreted as flashes from explosive ’squibs’. The flashes below the buckling east wall may have been from the aluminum cladding breaking free from the lower columns as they expanded after being unloaded of axial weight by the buckling of the wall above and their expansion breaking the connections to the cladding. Also explosives leave characteristic tears and fractures in steel, and such indications were not found anywhere in the debris pile.
After any fire in which a building collapses, there often remain deep seated, pockets of fire deep within the rubble pile These pockets of fire sometimes cannot be reached by water streams because of their being covered by debris. Air is sometimes drawn up from the bottom of the pile and feeds these inaccessible fires with air. These fires can last for days and the heat can become intense and can heat any steel in proximity to the fire until the steel is glowing red, orange or yellow hot. These pockets of fire are common at burning building collapses and in no way evidence that that explosives or thermite were used to demolish the buildings. These fires are similar to blacksmith fires where air is blown into the charcoals by a bellows to raise the temperature of the fire to heat a piece of steel or iron. The blacksmith can tell how hot the steel is by its color and can tell when the steel is soft enough to work it with a hammer The deep seated fires which occur in the rubble are supplied with air because natural convection currents. Heated air rises because of its bouyancy and is replaced by cool air drawn in from the bottom and sides of the fire. This air flow can become rapid because of the high temperatures developed. The more air drawn in the hotter the fire becomes and the increased temperature increases the convection currents which draws in more air. I am convinced that temperatures of over 2000 deg F. can easily be developed. This temperature, however, is still incapable of melting steel.
These deep seated fires often have to be dug out by hand tools, back hoes or grapplers in order to expose the burning material for extinguishment. It is common to hold off hitting the fire with water until it is fully exposed in order to prevent the great amount of steam that would be created from obscuring the work area until the fire is fully exposed and can be extinguished. This is what is happening in the picture of a grappler pulling out a piece of glowing hot steel from the debris pile so often described as molten steel. Such fires are incapable of melting steel unless they are supplied with pure oxygen.
Much has been made of the presence of molten metal in the debris pile after the collapse. Presumably this molten metal was somehow thought to be connected to explosions or thermite charges, but there were Uninterrupted Power Supply (UPS) battery rooms on some floors of the Towers and Building 7. These battery rooms supplied continuous battery power to computers if the electricity failed for any reason. These batteries contained tons of lead which melts at low temperatures [327 C (621 F)]. The heat from the fires in the debris pile could easily have melted this lead or the aluminum from the plane which were probably the metals that were seen flowing through the pile. NIST reported UPS in the 13th floor of Building 7 and the 81st floor of Tower 2. There were also quantities of lead, tin, silver and even gold used in the computer circuit boards.
Additionally the EPA reported over 400 different chemicals in the dust and debris. These chemicals could easily be assembled conceptually to propose any type of chemical reaction imaginable including thermite reactions. In addition thermite reactions are rapid and wouldn’t last the hours or days at which times the molten metal was observed. Thermite is hard to control and can’t be held against the columns because it would burn down through any material used to support it against the columns.
Pure oxygen is used in oxyacetylene torches to actually ignite burn and melt the steel when cutting. These torches were used to help clear the debris pile during search and recovery operations. A slag of melted and re-solidified steel and Ferrous oxide is formed on the opposite side of the cut. This slag formation was erroneously reported to be evidence of cutter charges having been used to sever the columns. Small molten pieces of glowing steel cool into spheres as they fly out from the cut.
About the concrete destruction into dust; F.R. Greening did a paper called Energy Transfer in the WTC Collapse in which he says “the energy required to crush concrete to 100 μm particles is 1.9 × 1011 J, which is well within the crushing capacity of the available energy. Hence it is theoretically possible for the WTC collapse events to have crushed more than 90 % of the floor concrete to particles well within the observed particle size range.” http://nistreview.org/WTC-REPORT-GREENING.pdf I would also investigate the possibility that the concrete was sub par due to freezing during curing or too much air or water having been added during construction.
Do you think the architect or engineers who built the Towers would want to admit the deficiencies in design, fireproofing and other construction weaknesses after their buildings collapsed? Do you think they will get any other jobs after 5 of their buildings collapsed from fire? (Building 5 had a serious interior multiple floor collapse due to fire.) Do you know that the Port Authority of NY, NJ didn’t have to follow any building codes? The reason the columns broke at the splices was that they had serious weaknesses due to lack of reinforcing plates or even welds on most of the exterior column, bolted splices. The long span truss floors were never tested for fire resistance at their design length. Why do you think it took so long to get the plans for the buildings after they collapsed while the building engineers had them all along? I would think the architects and engineers for 9/11 truth would be accepting any excuse to divert attention from themselves even the wild idea that explosives or thermite was involved.
About the eye witnesses; there are many reasons that loud sounds can be produced at a fire. Most of the people in tower 2 did not know tower 1 had been struck by a plane but they heard the explosion and felt the impact. There can be smoke explosions particularly in fires that have a flammable liquid involved. There were extensive fuel explosions in the elevator shafts. The one elevator shaft that extended into the cellars had a fuel explosion from the jet fuel spilling down the shaft. Most of the people in tower 1 did not know that tower 2 had collapsed but they all heard the noises and even felt the rush of air up the stairs as the air was compressed in the cellars. There could have been floor detachments impacting the floors below and producing loud sounds before any general collapse began. Explosives produce loud distinctive pressure waves that can leave people deaf of blow out eardrums and usually blow out all the windows on the particular floor. This kind of sharp piercing crack was not heard. The windows broken out and marble wall panels detached on the interior of the first floor lobby were probably because of torque forces experienced on the lower floor columns from the plane impacts many floors above. The reports of “explosions” in the cellars were also probably from such column or floor displacements or from jet fuel ignitions in the elevator shafts. If you imbed a stick into the ground and hit it with another stick most of the deformation will be in the ground around the bottom of the stick. There were reports of split walls and ceiling collapses on many floors after the planes hit.
In conclusion I think all the reports of controlled demolition can be explained by sounds or sights produced by the plane impacts and jet fuel and air explosions; the sounds of the Towers collapse, – remember most of the people in Tower 1 did not know Tower 2 had collapsed and attributed the sounds of that collapse to be happening in the building they were in. When the interior of building 7 collapsed it would have produced explosive sounds before the exterior walls began collapsing.
Arthur Scheuerman author of “Fire in the skyscraper” Why and how the WTC buildings collapsed.
“Arthur Scheuerman left a long comment on a post on my own blog, No BBC, WTC 7 Did Not Collapse “Due To Fire” & The Final 9/11 Mystery Is Not Solved, which I reproduce below:”
That’s interesting Anthony, because Arthur left a similar comment on “Who is Arthur Scheuerman” on Feb.10. However it has been altered in many ways from the one he posted on your blog on July 6.
And more interesting yet is the fact that Arthur Scheuermans report on The Collapse of Building 7 was rewritten on Feb. 29.
http://scheuermanwtc7paper.googlepages.com/home
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Here is Arthur’s post on Suzie-Q’s blog for your perusal…
219 Arthur Scheuerman
February 10, 2008 at 10:51 am
Well said Geezer!
We know the administrations Machiavellian Manipulations are responsible for this never ending war and the ongoing fleecing of the people, but there is no credible evidence of there having been explosives used to take down the towers. I revised my piece on: Reports of Controlled Demolition, Bombs, Thermite, Electromagnetic Rays, etc..
Many reports interpreted the loud sounds and debris being projected out sideways during the Tower collapses as an indication that explosives were used to demolish the buildings. Most of these ‘explosive’ sounds, heard during the collapses were heard after the collapses began. The exterior walls can be seen bending and buckling inward in the videos of both Towers long before any sounds or ground vibrations occurred. In Tower 2, the exterior columns in the east wall were photographed bowing inward up to 10 inches, 18 minutes after the plane’s impact. That’s 38 minutes before the global collapse began. To be technical, you could say that Tower 2’s collapse began slowly, with possibly some noise or impact sounds from falling floors, about 38 minutes earlier than the official collapse time. The explosive sounds and expanding dust clouds occurred just after the east wall buckled inward and started the collapse, and not before the buckling, as would have happened with controlled demolition.
When the south wall of Tower 1 was photographed it was bowing inward up to 55 inches on floors 95 to 101, about six minutes before these columns were seen buckling inward. In the North Tower “thunder” sounds were heard when floors collapsed on the south side 12 to 14 seconds before the top of the building was seen to tilt southward and begin falling as a unit starting the global collapse. Since each section of floor on the long-span side weighed about 500 tons, I would explore these ‘explosive’ sounds in Tower 1 as evidence of a floor or floors detaching and impacting the floors below on the south side which most probably accelerated south wall failure. I believe all the supposed ‘explosive’ sounds can be explained by the impacts made by the collapsing buildings after the columns were pulled in and buckled by the bowing and buckling floors and when the floors themselves began impacting the floors below. The boom, boom, boom, boom, boom repetitive ‘explosive’ sounds reported by firefighters running as Tower 2 was coming down were most likely caused by the sequential collision of impacting floors (pan caking). The great quantity of air on each floor being compressed in a fraction of a second by great weight and momentum would propel air, smoke, and any concrete dust and debris outward at great velocity.
It is also clear from the computer studies that the heat from the fires caused differential expansion of the steel parts in the long span, floor trusses with the resulting thermal bowing in some floors directly exerting pull-in forces on the exterior columns or this thermal bowing could have detached a floor which would have impacted the floor below destroying composite action by separating the concrete slab from the trusses and inducing strong tensile (suspension) forces in the double weighted floor. In other floors thermal expansion of the floor against the columns compressed the trusses which along with shear forces within the trusses buckled the diagonal struts collapsing the trusses which went into suspension (catenary action) and helped pull-in and eventually buckle the exterior column walls. All these adverse floor truss effects were caused by steel expansion which begins immediately as the steel is heated. Bowing and buckling can happen at low temperatures (400 C to 600 C) even before the steel would have weakened excessively from higher temperatures. Once the exterior column buckling spread,- assisted by the spandrels,- along an entire wall on one face the towers began to tilt and the buckling spread around the towers exterior and into the core and with all the columns buckled the leaning top sections of the tower began to fall straight down. Although the North tower antenna appeared from some northern angles to have fallen straight down it actually tilted to the south because the south wall buckled first and the cantilevered top building section pulled the core over to the south.
The South Tower’s top tilted to the east because its east wall buckled first. Once the core columns got out of plumb, there would have been little resistance to their buckling at the weak splices. With the incredible weight of the top of the buildings gaining momentum, like a heavy wedge or sledge all it had to do was break the welded, and single bolted connections holding the floors to the columns. This coupled with the fact that the falling top sections momentum increases as the square of the number of floors impacted as the floors were detached and added to the weight of the descending top. There would have been little resistance to slow the top section’s acceleration to the ground. Because this acceleration due to gravity increased the speed and momentum of the collapsing floors and building top, the impacts would have been increasingly violent as shown on the seismic graphs increasing amplitude until maximum when the mass of accumulated floors hit bedrock seven stories into the cellar.
In order for the columns to support the weight they have to be plumb and in line with the columns above and below. If they get out of plumb by 10 to 20 degrees they buckle and can no longer support the weight. The buildings collapsed because the floors first buckled from restrained thermal expansion and thermal bowing affecting floor truss stability. The sagging floor trusses pulled in the 59 columns in one exterior wall and they eventually buckled. Once the buildings started to tip over from loss of column support on one side the tremendous excess eccentric weight began buckling all the columns across the building. Once the tilted building’s tops began descending they hit the floors or columns at eccentric angles which easily detached the floors and buckled the columns. In order for the lower building section to offer any meaningful resistance to the falling building top the columns would have to hit each other exactly in line and in plumb and this was impossible with the top leaning causing eccentric angles of impact.
The fact is that columns have to be axially (in line and centered) aligned to support the weight of the building above. Once the top building section began tilting the columns on the side that originally buckled did not line up at all. These columns would have been hitting the floors and would have easily detached or buckled them. After the south wall buckled in Tower 2 the adjacent exterior wall columns buckled from overloads and the columns on the opposite west side of the building, which acted as a hinge would still be bearing on each other but at an eccentric angle which means they also would have also eventually buckled as the top tilted. These columns along with some of the core columns as they buckled are probably what kicked the bottom of the top building section to the west as reported by NIST. With all the columns across the building buckled the top section began descending at an angle to the building section below. None of the columns would have been axially lined up. As the columns collided they would have hit each other at eccentric angles and easily dislodged, disconnected or buckled each other. Adding the accumulating collapsing floors and you have a release of incredible potential energy changing to kinetic energy and building momentum as the accumulating chaotic mass of debris accelerated to bedrock 7 stories into the cellars.
There have been some engineering analyses about the impacting floors slowing down the collapse so that the time to collapse should have been longer than ‘free fall’ times of an object dropped from the towers tops. I have a theory that may explain this. Since the Tower’s outer wall columns, especially in Tower 1, pealed out like a banana, they may have been able to break the connections to the floors ahead of the floors being impacted? In other words, with the weight of the wall columns pealing outward from the vertical along with the added horizontal forces of impacting floors projecting debris outwards onto these columns; would these columns, while leaning out, be able to break the wall-to-floor connections ahead of the level of impacting floors? If this is possible than I believe that the connection failures could could have traveled down the sides of the buildings at a speed faster than free fall times. This might help explain the rapid collapses especially in Tower 1. The wall-to-floor connection failures could have traveled down the building sides faster than ‘free fall’ times and in effect started the floors falling before they were impacted by the accumulating mass of impacted floors above.
The heavy exterior wall columns in the 1500 foot high builddings while pealing off could project the column sections outwards a great distance. This distance (500 feet) was proposed as only being made possible by explosive forces. I disagree.
Much has been made of the fact that NIST only analyzed the events up to the point where the Towers were poised to collapse before runaway collapse began and failed to pursue the remaining collapse. This was largely because after collapse began the chaotic impacts of the floors, walls and columns colliding could not possibly be analyzed accurately with even the strongest computers.
In addition, the compression of air in the elevator and air-conditioning shafts by the collapsing upper building section and floors, would project air, smoke, and dust down these shafts and out of any air intake or discharge openings on the exterior walls on the lower mechanical equipment floors. This accounts for the plumes of smoke seen projecting outwards from the buildings well below the collapsing floors. There were quite extensive vertical HVAC shafts built into the building. These shafts are connected to air conditioning exhaust and intake ducts open to the exterior on the mechanical floors. Collapse of these shafts would force the dust and smoke out these HVAC exhaust and intake openings in the side of the building.
The lightweight aluminum cladding’s breaking free from the buckling columns also would have been propelled outward a great distance by this expanding cloud of air and dust. This would account for huge dust clouds and pieces of aluminum seen projected outwards from the upper sections of the collapsing buildings. The light reflected off these aluminum pieces at the north wall of Tower 2 would be interpreted as flashes from explosive ‘squibs’. The flashes below the buckling east wall may have been from the aluminum cladding breaking free from the lower columns as they expanded after being unloaded of axial weight by the buckling of the wall above and their expansion breaking the connections to the cladding. Also explosives leave characteristic tears and fractures in steel, and such indications were not found in the debris pile.
Much has been made of the presence of molten metal in the debris pile after the collapse. Presumably this molten metal was somehow connected to explosions or thermite charges, but there were Uninterrupted Power Supply (UPS) battery rooms on some floors of the Towers and Building 7. These battery rooms supplied continuous battery power to computers if the electricity failed for any reason. These batteries contained tons of lead which melts at low temperatures [327 C (621 F)]. The heat form the fires in the debris pile could easily have melted this lead or the aluminum from the plane which were probably the metals that were seen flowing through the pile. NIST reported UPS in the 13th floor of Building 7 and the 81st floor of Tower 2. Batteries also contain Sulfuric acid which could have corroded the steel accounting for the half consumed steel beams found in the debris pile. Additionally the EPA reported over 400 different chemicals in the dust and debris. These chemicals could easily be assembled conceptually to propose any type of chemical reaction imaginable including thermite reactions. In addition thermite reactions are rapid and wouldn’t last the hours or days at which times the molten metal was observed.
About the concrete destruction into dust; F.R. Greening did a paper called Energy Transfer in the WTC Collapse in which he says “the energy required to crush concrete to 100 μm particles is 1.9 × 1011 J, which is well within the crushing capacity of the available energy. Hence it is theoretically possible for the WTC collapse events to have crushed more than 90 % of the floor concrete to particles well within the observed particle size range.”
http://nistreview.org/WTC-REPORT-GREENING.pdf I would also investigate the possibility that the concrete was sub par due to freezing during curing or too much air or water having been added during construction.
The windows broken out and marble wall panels detached on the interior of the first floor lobby were probably because of torque forces experienced on the lower floor columns from the plane impacts many floors above. The reports of “explosions” in the cellars were also probably from such column displacements or from jet fuel ignitions in the elevator shafts. There were reports of split walls and ceiling collapses on many floors after the planes hit.
In conclusion I think the reports of controlled demolition can be explained by sounds or sights produced by the plane impacts and jet fuel and air explosions; the sounds of the Towers collapse, – remember most of the people in Tower 1 did not know Tower 2 had collapsed and attributed the sounds of that collapse to be happening in the building they were in. When the interior of building 7 collapsed it would have produced explosive sounds before the exterior walls began collapsing.
.