Slideshow image

Since your web browser does not support JavaScript, here is a non-JavaScript version of the image slideshow:

slideshow image

slideshow image

slideshow image

slideshow image

slideshow image

Why Fact-check? Why preserve a visual record?

The Website Written as a Book
1: Science and Subjective Viewpoints
2: Toward Accurate Collapse Histories
....2.1: Progressive Floor Collapses in the WTC Towers
....2.2: General Global Characteristics of Collapses
....2.3: Mathematical Basis of ROOSD Propagation
....2.4: WTC1 Accurate Collapse History
....2.5: WTC2 Accurate Collapse History
....2.6: WTC7 Accurate Collapse History
3: WTC Collapse Misrepresentations
....3.1: Purpose of the NIST Reports
....3.2: NIST WTC1 Misrepresentations
....3.3: NIST WTC7 Misrepresentations
....3.4: NIST WTC2 Misrepresentations
....3.5: Reviewing the Purpose of NIST and FEMA Reports
....3.6: Bazant Misrepresentation of Collapse Progressions
....3.7: Block Misrepresentations of Collapse Progressions
....3.8: AE911T Misrepresentations of the Collapses
4: Scientific Institutions Can Be Unaware of Contradiction
5: Reassessing the Question of Demolition
....5.1: The Case of WTC1
....5.2: The Case of WTC2
....5.3: The Case of WTC7
6: WTC Collapse Records Studied as Meme Replication
....6.1: Meme Replication in Technical Literature
....6.2: Meme Replication in Mass Media
....6.3: Meme Replication in Popular Culture
....6.4: John Q Public and the WTC Collapse Records

WTC Twin Towers Collapse Dynamics

Official, Legal Attempts to Explain Collapses

Academic Attempts to Explain Collapses Reviewed

On the Limits of Science and Technology

WTC Video Record

WTC Photographic Record
WTC1 Attack to Collapse
WTC2 Attack to Collapse
Fire Progression, WTC1 North Face
Fire Progression, WTC1 South Face
Fire Progression, WTC1 East Face
Fire Progression, WTC1 West Face
Fire Progression, WTC2 North Face
Fire Progression, WTC2 South Face
Fire Progression, WTC2 East Face
Fire Progression, WTC2 West Face
Debris: WTC1 Around Footprint
Debris: WTC2 Around Footprint
Debris: From WTC1 Westward
Debris: From WTC1 Northward
Debris: From WTC2 Eastward
Debris: From WTC2 Southward
Debris: Plaza Area, Northeast Complex
Debris: Hilton Hotel, Southwest Complex
Debris: General, Unidentified Locations
Damage to Surrounding Buildings
Perimeter Column Photo Record
Perimeter Columns: Types of Damage
Core Box Columns: Types of Damage
Complete Photo Archive
Other Major 9-11 Photo Archives
The 911Dataset Project

WTC Structural Information

Log In


Remember Me

Online Misrepresentations of the WTC Collapses

Forum, Blog Representations of the WTC Collapses

The Book Tested Through Experiments

Miscellaneous Notes, Resources
FAQ for Miscellaneous Notes
History Commons 9/11 Timeline
The 911Dataset Project
Skyscraper Safety Campaign
First and Largest 9/11 Conspiracy Theory
Key Words in Book and Website
Trapped Within a Narrowed False Choice
Vulnerability and Requestioning
On Memes and Memetics
Obedience, Conformity and Mental Structure
Denial, Avoidance (Taboo) and Mental Structure
Taboos Against Reviewing the Collapse Events
Extreme Situations and Mental Structure
Suggestibility, Hypnosis and Mental Structure
Awareness and Behavior
Magical, Religious, Scientific Cause-Effect Relations
The Extreme Limits of Mental Dysfunction
Orwell's "Crimestop", "Doublethink", "Blackwhite"
William James, Max Born: Science as Philosophy
Plato on Self Reflection and Mental Structure
Rewriting History, part 1
Rewriting History, part 2
On Smart Idiots

New Ideas in Education

WTC1 North Perimeter Falling

WTC1 North Perimeter Falling

North Wall Dropping

A very large piece of perimeter is hidden in just inside the dust about to emerge. The northeast corner has broken away from the building and gone into free-fall (left).

The piece emerges below, about 11 stories tall.

And a much clearer image:

This piece is from above the failure line. The upper wall fell out and over the lower wall. The north wall dropped in 4 stages:

1) Wall above failure line falls out and over the lower wall.

2) Upper wall below the failure line falls outward in pieces down to the stiffer MER panels.

3) The middle section falls outward from fl 78 down to fl 44 in long pieces.

4) Lower section falls.

Model of the North Wall


The wall drops in at least 3 noticable stages

1) Initial failure is along the red line

2) The pieces above the failure line fall outward and over the pieces under the failure line. They are quickly stripped from the building and go into free-fall The yellow rectangle is largest piece shown above. northeast corner is light blue, northwest corner darker blue.

3) Large pieces from below the failure line break away and fall down to the upper edge of the 75-77 fl MER stiffening belt (purple rectangle).

4) The middle section falls outward as long sheets, seeming to pivot outward from above the 41-43 MER stiffeneing belt. One of these long pieces seems to strike WTC 7 (marked as large red rectangle).

5) The lower section was obscured by dust, but the northeast corner was seen to break down to just above the 41-43 MER level (as marked).

The large leading north sheet is marked in yellow.

The large west and northeast corner pieces are marked in red.

Notice how their relationship to the red line is maintained and the north leading north piece always trails these two pieces.

Also, the northwest corner from above the failure line is marked in blue.

Dropping of the upper section

The large piece from the north face above the failure line is still obscured in the dust. The 75-77 MER level is visible with an ejection emerging from the center. Everything above that MER belt is the upper wall.

The upper wall has failed and is falling at this moment.

In the next image the northeast corner path is shown by the red arrow. The leading large piece falling from the north face follows the pink arrow.

The paths are marked by smoke, so one can verify that these 2 pieces were next to each other in the wall but fell outward in different directions.

The sheets following the blue arrow are of the wall just below the failure line. They fall trailing the leading piece. The original position is marked by a purple rectangle in the model diagram.

The initial failure line along the north face is visible in the following video. The large piece can be seen to break away from the northeast corner section during the earliest moments of north wall failure:

Dropping of the Middle Section

The upper sheet drops as pieces down to the upper edge of the stiffer belt of MER panels along the 78th fl.

The middle section then falls outward as a few long sheets, seeming to pivot near the upper edge of the 41-43 fl MER belt. One large piece pivots toward WTC 7.

The process is shown in 2 different sets of high resolution photographs.

You will notice the perimeter fold outward exposing tall core columns. The tallest column marks floor 77. It is easy to see middle wall folding outward from the elevation of floor 77 in the photographs.

Notes on the first set of photographs:

  1. The upper wall is failing from photographs #1 to #4
  2. The middle wall is failing from photograph #4 to #7, It pivots outward exposing a standing column. That column is 77 stories high and can be used to estimate the height of the north wall in photographs #4 to #7
  3. Lower wall fails from photograph #8

NORTHEAST VIEW - Unknown Photographer #1

Full size:




Notes on the second set of photographs:

  1. The upper wall is failing from photographs #1 to #3
  2. The middle wall is failing from photograph #4 to #9, it pivots outward exposing a standing column. That column is 77 stories high and can be used to estimate the height of the north wall in photographs #4 to #9
  3. Lower wall is failing in photographs #10 and #11

NORTHEAST VIEW - Unknown Photographer #2

Full size:




Another excellent example the north and east walls opening up from the 77th fl level in this photo The tallest column extends to the 77th floor. This column can be used as a reference mark to verify that the walls indeed open from around the 77th floor.

Lower walls are opening up in this photo

The lower walls have already opened up in this photo. Notice the open pocket of empty space at the base of the surviving columns. Air is clearly being fanned away and outward on all sides.

It is as if the lower walls open like a tulip, pushing air outward on all sides.

The tallest column is also visible in the next 2 photos.

Thes images capture the north perimeter opening outward from just above the 75-77 fl MER stiffening belt:

The wall opens revealing a tall column of the same height.

Opening further. The whitish portion shows the movement of the middle section:

Northeast corner drops as ~20 floor sections

Close up of photograph #7, first group. Corner section broken around the 60th floor

Close up of photograph #9, first group. Corner section with wall broken around floor 44, just above the 41-43 MER level.

Created on 03/31/2009 04:56 PM by admin
Updated on 07/25/2013 07:38 PM by admin
 Printable Version

Copyright © 2008 WiredTech, LLC
phpWebSite is licensed under the GNU LGPL