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 South Wall Motion

WTC1 South Wall Motion

The south wall at the beginning of collapse. Building features tilted less than 1 degree to the south the core and all 4 perimeter walls failed completely.

Complete failure has already occurred by these moments:

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 around the 89th floor. They are light grey, not darker colored like the smoke and ejections above.
South Wall Model


1) The wall fails through the red line.

2) The wall above the failure line falls out and over the wall below. This means that large perimeter pieces from above the failure line go into freefall and cover the floor-by-floor ROOSD progression from view.

3) Sheets from the middle section are not visible, but there was no large continuous sheet falling away as there was on the north face. The middle section must have fragmented somewhat because it doesn't fall far away from the building. It drops relatively near to the base of the building.

4) The middle fragments down to the upper edge of the lower MER level. The Lower section then falls out as a sheet.

Drop of the Upper Section

Things to consider:

There is a large piece of the west wall just above the failure line that goes into free-fall. Can you see it emerge from the dust yet? (No.)

Using this image you can already know that WTC1 south is nothing like WTC2 east. Recall, in WTC2 east you could see smooth ROOSD progression clearly because the top section folded behind the middle section.

Can you see a clean unobstructed ROOSD progression? (No.)

Do the west and south ejections look similar? (Yes.)

Why? Because there are large sheets of perimeter in free-fall within the dust blocking any view of a smooth ROOSD progression. You cannot see them emerge yet but they are there all the same.

The large west piece in free-fall will fall together with the large pieces in free-fall from the south wall. How is that possible? Because they both broke away from the building at the same time from the same elevation (just above the failure line).

This motion is impossible unless the sheet above the failure line falls out and over the lower sheet during the initial failure sequence.

Perimeter sheets emerging from the dust

Original here
Drop of the Middle and Lower Sections

2 sets of high resolution photographs provide the best record of movement of the middle and lower sections

Notes on first set:

  • Middle section clearly destroyed by photo #6
  • Drop of lower wall must be during photos #6 to #13
  • Smoke movement is consistent with a large sheet dropping

  • WEST VIEW - Jennifer Brown
    Images DSC_0065 through 0084 are missing. They show probably the first half of the collapse. Either not received from original source or not released by NIST.

    Full size:



    Notes on second set:

  • Middle section must be destroyed by photograph #7
  • Lower wall drops between photographs #7 and #13

  • WEST VIEW - John O'Boyle
    Following images are missing:
    DSC_4567 - 4569
    DSC_4572 - 4574
    DSC_4587 & 4588

    Full size:




    Base of the south wall in the rubble in this photo and this photo

    Created on 04/26/2011 06:01 PM by admin
    Updated on 05/02/2011 12:09 AM by admin
     Printable Version

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