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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
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

Damage to Basement and Lobby

Damage to Basement and Lobby

The best summary of damage witnessed in the lobby and basements after the aircraft impact is written as a discussion in a forum.

The posts by username achimspok provide the damage record in this lively debate.

Some highlights of the discussion are reproduced below:
How do liquid and droplets travel through air?

Since kerosene has a lower density than water I would expect smaller droplets after a 350m fall.

* g: gravity
* cw: ≈ 1, drag coefficient of the droplet
* ρL: density of air (1.2 kg/m³)
* vE: max. fall speed
* r: radius of the droplet
* ρW: density of liquid (825 kg/m³)

So we get for the elevation of floor 95 (pink) and floor 77 (yellow)

3mm drops from the elevation of floor 77 would fall one minute before reaching the lobby.
2mm drops ... 68 sec
1mm drops ... 98 sec
0.5mm drops ... 138 sec
Of course they have to fall straight down otherwise they would need much more time to running down the walls. And we have to consider the upwards speed of the air due to thermal suction.

The impression of falling elevators exploding on impact is hard to imagine if the pause between impact and explosion is at least 60 seconds. Well, impact of what?
A practical example of the dispersal of liquid fuel in air.

Notice how the speed of the liquid droplets slows down extremely when released from the solid projectile.

FAE: Fuel-air explosion in the elvator pits of the towers?

"Fuel-Air Explosives [FAE] disperse an aerosol cloud of fuel which is ignited by an embedded detonator to produce an explosion. The rapidly expanding wave front due to overpressure flattens all objects within close proximity of the epicenter of the aerosol fuel cloud, and produces debilitating damage well beyond the flattened area. The main destructive force of FAE is high overpressure, useful against soft targets such as minefields, armored vehicles, aircraft parked in the open, and bunkers."

Elevator shafts to the basements and lobby

Elevator #7 at the 92nd floor. Elevator #6 to the right, elevators 90-92 at the top. It may be a bit hard to see, but the H columns are transitioning to box column further down.

Elevator #7 at the 80th floor. Elevator #6 shaft to the right, elevators 90-92 at the top.

Elevator #7 at the 46th floor. Elevator #6 to the right, express elevators 8-11 to the left.

Express elevator shafts 8-11.

Pit for Elevator #7 and #6. at the AB1 level.

Elevator 50 at the 92nd floor. Elevators 90-92 to the left.

Elevator 50 at the 75th floor. Elevators 72-74 to the left, and elevator 49 to the top.

Elevator 50 at the 47th floor. Elevators 72-74 to the left, and elevator 49 to the top.

Elevator 50 at the 42nd floor. Elevators 45-47 to the left, and elevator 49 to the top.

Elevator 50 at the 3rd floor, above the Plaza level. Elevators 45-47 to the left, and elevator 49 to the top. This is the only elevator that terminates at the AB5 level.

From username Enik from this post

Created on 03/24/2011 09:13 AM by admin
Updated on 06/15/2012 06:25 PM by admin
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