Title: MTT Key Points
1MTT Key Points
- This power point selects the key points from
- Revision 11 of Mysteries of the Twin Towers,
posted at ae911truth.org. - Revision 11 is 70 pages in length, and is
documented by over 300 endnotes. Please consult
Revision 11 for any questions you have regarding
the content of this presentation
2Introduction
- On the day they fell, It was hypothesized, not
proven, that the impact of commercial aircraft
and the ensuing fire caused by aircraft fuel led
to the destruction of the North and South World
Trade Center Towers, on September 11, 2001.
3Introduction
- The federal government was charged with
conducting a rigorous scientific investigation to
determine the cause of global collapse of WTC
12. - So, why did the towers collapse?
- By now, 2009, we should have a definitive
answer, but we do not.
4Introduction
- Incredibly, with a budget of 17.5 million
dollars, - and a staff of hundreds, after a 3 year study
which produced a 10000 page final report, - NIST still admits they do not know what caused
the global collapse of the towers.
5Introduction
- There are really two important questions
- 1) The Cause of the destruction of the twin
towers. - 2) The quality of the investigation which went
into determining the cause. - This presentation will focus on question 2)
6Introduction
- In order to look at the Quality of the
investigation, we will - Look at some of the Available Evidence
- See how the FEMA and NIST investigations handled
that evidence - Look at some of the responses from the
engineering community.
7Evidence History
- Steel framed reinforced high rise buildings have
never before 9/11/01 or since 9/11/01 collapsed
due to fire Yet on 9/11/01, not one, but 3
buildings collapsed - fire in Madrid Spain
First Interstate
8Evidence Documentation and Claims
- Each tower was 1375 ft. tall, with 110 floors of
12.5 ft. height - Each consisted of a perimeter of 244 structural
steel columns forming a square plan, with
horizontal bracing (spandrels) and extremely
rigid chamfered corners. -
- The building cores, of dimensions 79X139 ft., was
a veritable forest of 47 columns, horizontal and
diagonal cross braced. -
- The 47 core columns varied in thickness with
floor height. Individual core columns in the
lower core measured 52 x 22 in. (in plan), and
were formed of 5 and 3 inch plate into almost
solid steel shafts that weighed up to 56 tons.
This construction changed to relatively light
I-beam cross section above the 85th floor.
9Evidence Documentation and Claims
- NIST notes that because of severed columns, loads
on adjacent perimeter columns, increased by up to
25. - Yet, ENR noted that loads on perimeter columns
could be increased by a factor of 20 (2000 )
without failing.
10Evidence Documentation and Claims
- A document from the Port Authority of New
York and New Jersey (PANYNJ) indicated that the
impact of a Boeing 707 aircraft was analyzed
during the design stage of the WTC towers. The
analysis concluded that such a collision would
result in only local damage which could not cause
collapse or substantial damage to the building.
- NIST supporter Eduardo Kausel of MIT argues that
the 707 and 767 are comparable aircraft, and that
the fire caused the collapse.
11Evidence Documentation and Claims
- John Skilling, partner in WSHJ, who died in
1998, stated in a 1993 interview with The Seattle
Times Our analysis indicated the biggest
problem would be the fact that all the fuel (from
the airplane) would dump into the building. There
would be a horrendous fire. A lot of people would
be killed. But, he says, The building structure
would still be there. - This firm is a world class structural
engineering firm responsible for the structural
design of many major modern structures, including
Columbia Center in Seattle
12Evidence Visual, documented
- Molten metal flowing well below aircraft
impact in the south tower. (observed by NIST and
attributed to the aluminum from the aircraft) -
- Flowing metal from S. Tower
13Evidence Visual, documented
- Pools of molten metal in the WTC basements, 6
weeks after 9/11 - These pools were denied by NIST
14Evidence Visual, documented
- Steel eroded to razor sharp thinness by a
eutectic mixture of sulfur. - images from Appendix C of FEMA Report
15Evidence Visual
- complete pulverization of virtually all concrete
into a pyroclastic cloud.
16Evidence Visual
- Steel core columns vaporize
17Evidence Visual
- Huge beams thrown laterally up to 500 ft
- (almost half the building height)
18Evidence Visual
- Steel sliced at an angle
- much the way
- demolition crews place
- cutter charges
19Evidence Visual
- Squibs which the collapse overtakes
- This was not dust blowing out of collapsing
floors
20Evidence Visual
- Afterglow recorded in multiple videos of the
tower collapse.
21Evidence Witnesses reports
- Dozens of civilians, and more than 100 FDNY
firefighters reported explosions
22A few NIST arguments
- NIST contracted with Underwriters
Laboratories (UL) to test floor trusses like
those in the WTC towers. All four test specimens
were subject to a standard fire test (ASTM E119,
with a max temperature of almost 1000 deg. C) and
sustained the maximum design load (twice that on
the WTC trusses) for two hours without
collapsing. - NIST found no significant steel
temperatures over 625 deg. C. - (Could this be because there was not much
building steel left after most of it was rapidly
removed from he site by the city of new York?) - Yet their report concludes column and floor
assemblies softened due to fire and the floors
began to sag in the impact zone, which caused
perimeter columns to buckle inwards, leading to
collapse initiation.
23A few NIST arguments
- NISTs basic argument for global collapse is
the "descending block scenario", by which - The change in potential energy due to downward
movement of building mass above the buckled
columns exceeded the strain energy that could
have been absorbed by the structure. Global
collapse then ensued. (Repeated 12 times in the
report) - Yet they provided no momentum transfer
analysis for this, but merely assumed it to be
the case.
24A few NIST arguments
- Further, there is photographic evidence for both
towers, that there was no "descending upper
block, because the upper block disintegrated
before it fell onto the lower block. - images of S
tower
25A few NIST arguments
- There was no descending block for the North
Tower it also disintegrated before falling on
the lower tower. - Note the top of the upper block has fallen
considerably, - While the top of the lower block has moved very
little
26A few NIST arguments
- Still, the towers fell at virtual free fall speed
- Which block will hit the ground first?
- NIST says both blocks will hit the ground at the
same time
27A few NIST omissions
- NIST also omitted or distorted many other
important aspects of the collapses, including
movement of the WTC1 antenna before the adjacent
façade, pyroclastic dust clouds, and pools of
molten metal in the WTC basements weeks after the
attacks. - NIST also failed to provide follow up study
on the eutechtic reaction which eroded steel
beams to razor thickness, which FEMA recommended
be investigated in future studies.
28The engineering community
- A lone scientist, Abdolhasan Astaneh Asl, funded
by the National Science foundation, got access to
the steel before the ASCE/FEMA team and NIST.
Despite the fact that 40 percent of a steel beam
was torn away, the column did not collapse, an
example of redundancy built into the
1970s-vintage structure. With admiration, - Asl said
- "The impact
- did nothing
- to this building."
29The engineering community
- James Quintiere, PhD, one of the worlds
leading fire science researchers and safety
engineers, and former Chief of the Fire Science
Division of NIST, did not like how the
investigation was handled, and has called for an
independent review. -
-
30The engineering community
- The engineering community at large has raised
questions about the results of the NIST WTC
investigation. The popular British construction
industry magazine New Civil Engineer
International (NCEI) has posted several articles
which note that among other things - NIST continually changed its story during the
investigation - NIST is refusing to show computer visualizations
(ie simulations) of the collapse
31The engineering community
- Richard Gage is a degreed and licensed
architect from the San Francisco Bay area and a
member of the American Institute of Architects. - In 2006, he founded Architects and Engineers
for 9/11 Truth (www.ae911truth.org) which as of
September 2008 has garnered 474 professional
signatures asking Congress for a serious
investigation into the destruction of WTC1, WTC2,
and WTC7 on 9/11/01.
32The engineering community
- Earl Sutherland, CEO of the Seattle Based firm
Earl Sutherland Associates (who is not
affiliated with any 9/11 Truth group) - Wrote, on an image of the South Tower
Collapsing - Impossible from solely impact of an aircraft"
- Further he wrote
- "A a metallurgical engineer, it was obvious from
reports of the structural steel heating and
conditions after the event, that the collapse of
the building from the aircraft impact was not the
sole cause. To me it was incredible that there
appeared to be no real investigation of the
event. Probably politics." - Permission granted to use note given.
33The engineering community
- Steven Jones, who has a Phd in physics, has
shown, based on the presence of flowing metal and
eutectic sulfur, and the chemical composition of
the remnants, That the destruction of the towers
is consistent with the use of thermite or
thermate, - Jones has also noted that NIST was remiss in
neglecting to test for explosive residue.
34The fire engineering community
- Firefighters for 9-11 Truth
(http//firefightersfor911truth.org) states -
- "...NFPA (National Fire Protection
Association) 921, which is the National Standard
for Fire and Explosion Investigations, very
clearly indicates in numerous sections that the
possibility of explosives should have been
thoroughly investigated. Specifically in NFPA 921
18.3.2 'High Order Damage'- 'High-order damage is
characterized by shattering of the structure,
producing small, pulverized debris. Walls, roofs,
and structural members are splintered or
shattered, with the building completely
demolished. Debris is thrown great distances,
possibly hundreds of feet. High-order damage is
the result of rapid rates of pressure rise.'
World Trade Centers 1, 2, and 7 all clearly met
this definition therefore they should have been
thoroughly investigated and analyzed for
explosives. ...
35The professional community
- As of September 1 2008, www.Patriotsquestion9
11.com documented the statements of over 140
Senior Military, Intelligence Service, Law
Enforcement, and Government Officials over 290
professors over 210 9/11 Survivors and family
members over 140 artists, entertainers and media
professionals over 120 pilots and aviation
professionals and over 530 engineers and
architects appear on this site questioning the
official story.
36Conclusion
- Skeptics of the official story believe that a
new truly independent investigation, with supoena
power, will be necessary to learn the truth of
why the WTC towers fell. -