This is a very interesting segment showing good detail of the collapse.
I'll talk through what I see happening and maybe anyone who wants to can chip in, but it is all becoming very much clearer. The whole thing is
difficult to see and the times that I will give can only be approximate but if you run the video back and forward you will see what I mean.
The start shows both towers but side by side with no gap between. Note the darker horizontal bands (storeys) for height reference because the camera
zooms in and out. Collapse is initiated above the line and is accompanied by an expulsion of smoke, debris etc. Almost immediately afterwards two
vertical lines of charges run down the walls adjacent to the corners. These charges disconnect the spandrel plates attaching the wall columns to the
corner columns (and possibly the floor to corner column connectons although I'm not sure about this) serving to isolate the corner columns as one
The collapse front passes beyond this point and about 5 - 6 seconds the corner section becomes visible, standing alone, then tips over inwards before
becoming disconnected at its pivot at a lower point and dropping straight down. It disappears at about 9 - 10 seconds.
The core appears from the cloud after about 4-5 seconds, with its top resembling a stepped pyramid. It is difficult to see because it is partly behind
the standing tower and of course the cloud, but appears to stay standing until the camera zooms out so far as to be unable to say with any
After 18 - 20 seconds, another, still vertical column becomes visible, seeming to protrude from the dark building in the foreground. This at first
appears to be the same corner but is not quite in line so it must be the adjacent corner.
The spire which was left after collapse of WTC1 also shows the use of this technique to separate the corner sections. The pointed spire appears to be
a corner section isolated from floors and adjacent columns. The twin lines of corner charges would isolate the corner in just this manner. It has not
as yet become disconnected at its base.
How does Nist or anyone else explain the fact that a section containing a number (4-6) of the corner perimeter columns became vertically disconnected
from its neighbours and remained standing for several seconds after the collapse front had passed below their topmost point? This would require that
this still upright section was disconnected via its spandrel plates from the neighbouring columns and disconnected via the floor connections from all
of the floors.
Does anyone doubt that this phenomenon is a massive indication of the use of other than gravitational energies?
The corners were always going to be the awkward bits for the demolition crew because they confer stability. Taking these out with eight vertical lines
of timed charges divides the perimeter into four unstable walls and four unstable pillars.
When the sequence is known it becomes easier to identify the various sections in other videos.
Shows corner section
As he says “That tower just came down” the nearest corner section is visible in the foreground, and begins to fall as he says “down”
From street level - core visible after collapse
Shows sharp perpendicular vertical edges of remaining core 4secs very clear 7 - 9 secs
From helicopter shows core but not well
Right at beginning see vertical line between standing tower and standing bulding silhouetted to right. Debris can be seen falling down this line
indicating a mass above from which it feel. Run back and forward between 2 and 6 seconds watching the area between the expanding dust cloud beneath
the standing tower and the silhouetted building. You will see the remains of the core disappearing. This would be obscured from most angles by the
expanding cloud but can be seen because of the elevated position.
Full sequence of above
Other charges are initiated after the first front and these serve to weaken the walls so they break into manageable sections which are seen falling
outwards, although also presumably inwards.
The core base was compromised using thermite or thermite like charges causing the core to lose load carrying ability and transfer its load to the
perimeter. This explains the early downward movement of the core in WTC1. The absence of this movement and the fact that the core of WTC2 remained
standing for several seconds after collapse shows that this collapse was triggered early, presumably because of the arrival of firefighters on the
lowest fire floor.
photograph of WTC2 core standing after collapse
This explains the relatively short time that this tower stood when compared with the other.
Thermite was also used at key structural points throughout the structure
Within the Nist report are two infra red photographs of the tower in flames. There are two distinct and discrete hot spots on or about the
The position of these effects are at key points of the bulding - the corners and the corner floor beam to perimeter column connections.
(Credit to Foxx for the Pyrocool)
On the morning of September 30, two thousand gallons of pyrocool FEF was delivered to the Liberty Sector Command Post at Liberty and West Streets,
adjacent to the West side of what was the North Tower. Staging operations were coordinated by WTC Incident Command and FDNY Research and Development
(R&D) that would apply pyrocool to two areas of immediate concern - the debris field on the West side of the North Tower and the backside of the
debris field of the Federal Building (No. Seven). For the Building Seven operation, a 75-foot ladder tower (Truck Company 133-Brooklyn) was utilized,
together with a 500 GPM Akron eductor. Foam was applied, at approximately 500 GPM, for two hours to the middle section of Building Seven, after which
a portable infrared camera revealed that the area had been fully extinguished. In fact, no hot spots were found in the area where pyrocool had been
applied. pyrocool FEF had been used prior (in the civilian sector) to put out troublesome fires, however, prior to Sept 11, 2001 pyrocool FEF was used
mostly by the military to douse incendiary attacks (Incendiary armour piercing weapons fire).
From the pyrocool site -- "Combustible metal fires can also be extinguished using PYROCOOL® FEF. "
PYROCOOL "FEF" FIRE EXTINGUISHING FOAM
ACTUAL PRODUCT LABEL
This formula is recommended for use for Class A and Class B combustibles, including highly volatile hydrocarbon fires (e.g. military jet fuel) and
three-dimensional and pressurized fires.
PYROCOOL® FEF is effective for extinguishing unleaded gasoline with MTBE additive. Combustible metal fires can also be extinguished using PYROCOOL®
FEF. Underwriters Laboratories of Canada certification pending.
The following is a list of pieces of evidence for which this scenario provides a plausible explanation. No other scenario does this.
WTC1- downward movement of antennae.
Early collapse of WTC2 - arrival of fire crew
Infra red hot spots
Molten metal ejecting from building
Ejections of dust and smoke both before and after the collapse initiation
Anomolous ejections as evidenced by Nist
Order of collapse - walls - corners - core.
Separation of corner sections and their collapse after the walls
Separation of core at impact level
Still standing core of WTC 2 after collapse
Collapse of still standing sections of WTC 1 as long columns separated from each other
Still standing corner section - spire - after second collapse
Inordinately high temperatures and duration of the debris fire
Use of Pyrocool to extinguish
Witness statements regarding explosions
High explosive blast characteristics
The still standing core section of WTC2 was captured clearly by only one still photograph among all the film shot on that day. Similarly the top of
the corner column section was visible for only a few seconds. However when armed with the knowledge of their existence other videos and photographs
supply substantive detail. The separation of the corner sections can easily be discerned in several videos and it is this phenomenon, unachievable
through a gravitational energy collapse, which makes the entire process more apparent.