The following gif contains the 2 images above. There is an interval of 10 frames between each image (at 30 frames per second):
The frames are
f755 south side ejection from around floor 87 already visible
f765
f775 ejections appear around NW corner (green line) and along north and west faces of floor 98
f785
f795
f805
at 1/3rd second interval between images.
Achimspok locates the ejection from the west view:
and concludes correctly;
The same ejections as seen from south:
Achimspok locates the ejections from the south view:
Therefore ejections extending as low as the 87th floor on the south face
are visible before ejections appear along the north and west faces
along the 98th floor.
Frames from Achimspok analysis taken from this clip. The same clip is embedded below.
>>>>>>>>>>>>>>>>>>>>>
>>>>>>>>>>>>>>>>>>>>>
The purpose of the red arrows is to point to common events in order to synchronize the north view and south view videos.
Once synchronized, we can see that the strong light colored ejections
from the middle of the south face emerge as low as the 87th floor and
are visible when the antenna has tilted less than 1 degree and the NW
corner is just beginning to fail.
In the gif above, we can see that the NW corner has barely begun to fail
when the south side ejections are visible. We see forceful ejections
with what appears to be concrete dust as low as the 85th floor, as the
video linked below shows.
We also see a large ejection of fire out of the SE corner well below fl 92, which is the lowest floor in which fire was visible.
This next clip shows the same south side ejections synchronized to a
video of the collapse from the north to demonstrate the evolution of
movement from the north at the time the ejection is witnessed:
The dust emerges when the northwest corner has only fallen a few feet.
The tilt angle varies from 0 to 2 degrees over this interval, meaning
the south wall has fallen only about 12 feet by this time in the region
of floor 98. The ejections emerge from areound the 89th floor. They
are light grey, not darker colored like the smoke and ejections above.
They begin to emerge at the time shown in the gif leading off this section.
Note that this type of free-fall perimeter sheets has no similarity to
the WTC2 east wall. It is similar to the WTC1 west wall where the sheet
just above the failure line falls out and over the lower sheet.
Remember, if inward bowing led to the style of failure that the WTC2
east face experienced, there would be nothing in freefall as seen. The
inward bowing would pull the upper sheet behind the lower sheet and the
lower sheet would be pushed outward.
This evidence shows that this couldn't have happened to WTC1 south face.
Upper did not tuck behind lower. Upper broke outward and over lower,
just like the WTC1 west face and north face.
