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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
9/11 Debris: An Investigation of Ground Zero
Airplane Debris around WTC Complex
Damage to Surrounding Buildings
Perimeter Column Photo Record
Perimeter Columns: Types of Damage
Core Box Columns: Types of Damage 1
Core Box Columns: Types of Damage 2
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: West Wall Falling

WTC1: West Wall Falling

The west wall

Material is clearly moving as 2 distinct groups. The large group of objects in free-fall is the west wall from just above the failure line along floor 98.

All 3 main features of the drop of the west wall are seen in this image.

1) The upper wall falls out and over the lower wall during the initial failure (falling upper wall is seen in the next image).

2) The lower wall falls outward as a large unit. The building opens like a tulip.

3) The collapse front is uneven along the west wall. The south side leads the north side by 10 to 20 stories. This means the south part of the wall is stripped from the building considerably earlier than the same wall on the north side. THis uneven stripping creates a twisting in the wall as it falls away.

West wall above floor 98. Notice the straight break along the lower spandrel (fl 99):

These falling west face objects are tracked in detail here and here.

Slow motion clip showing the west wall falling outwards as a large sheet.

The effect of the perimeter peeling is obvious in this image of the region to the west of the WTC1 footprint:

This image shows people standing on the angled sheet, including the photographer. You can see that the sheet has its outside facing upward.

Dropping of the west wall.

The 3rd diagram shows how large sheets fell away from the building and fragmented.


1) The failure line goes through floor 98 (red line)

2) The upper wall fell out over the lower wall in a few large pieces

3) Collapse propagation travled down the south side (right) ahead of the north side by 10 to 20 stories

4) Bottom part opened as a tulip down to the lower MER green stiffening section. It breaks under its own weight while opening. and it twists as a result of uneven stripping.

Photo archive of debris in the area west of WTC 1 here

From another angle

Pieces of the wall above floor 98

Created on 04/12/2009 06:26 PM by admin
Updated on 11/05/2014 03:57 AM by admin
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