Here is a selection of papers and video presentations by our members and others. For additional papers, see the Journal of 9/11 Studies.

Clicking a paper’s title will open it in a new window.


John Wyndham created a special website for moderated discussion and debate of topics of scientific interest related to 9/11, much of which could be considered preliminary or controversial. That site is no longer being actively engaged with and John is effectively retiring from maintaining it. The discussion there contains material of value, so we don’t want to lose it. It is therefore being archived as a sub-folder on this site. You can access the original site, as long as it is up, or the static archive (frozen as of April 5, 2021).

Steven Jones, Robert Korol, Anthony Szamboti and Ted Walter, “15 Years Later: On the Physics of High-rise Building Collapses,” Europhysics News 47/4, August 24, 2016, p. 21–26.

John D. Wyndham, Wayne H. Coste and Michael R. Smith, “Ethics and the Official Reports about the Destruction of the World Trade Center Twin Towers (WTC1 and WTC2) on 9/11: A Case Study,” 2014 IEEE International Symposium on Ethics in Engineering, Science and Technology.
[See also the poster for the paper presentation in Chicago, May 23-24, 2014. For French translations by Il Fatto Quotidiano, see “L’éthique et les rapports officiels sur la destruction des Tours Jumelles du World Trade Center (WTC1 et 2) le 11 septembre 2001 : Étude de cas,” and poster in French.]

Wayne H. Coste, PE and Michael R. Smith Architects & Engineers for 9/11 Truth, Neglecting Peer Review: A Case Study of Engineering Ethics and the Official Reports about the Destruction of World Trade Center Building 7 (WTC7) on 9/11, 2014 Forum on Philosophy, Engineering and Technology (fPET), Virginia Tech, Blacksburg, Virginia, 27-29 May 2014

David Ray Griffin, “Left-Leaning Despisers of the 9/11 Truth Movement: Do You Really Believe in Miracles?,” July 6, 2010.

Steven E. Jones, Frank M. Legge, Kevin R. Ryan, Anthony F. Szamboti and James R. Gourley, “Fourteen Points of Agreement with Official Government Reports on the World Trade Center Destruction,” The Open Civil Engineering Journal, 2008, 2, 35-40.

Steven E. Jones, “Revisiting 9/11/2001: Applying the Scientific Method,” Journal of 9/11 Studies, Vol 11: May, 2007.

Steven E. Jones, “Hard Evidence Repudiates the Hypothesis that Mini-Nukes Were Used on the WTC Towers,” Letter to Journal of 9/11 Studies, January 16, 2007.

Steven E. Jones, “Why Indeed Did the World Trade Center Buildings Completely Collapse,” Journal of 9/11 Studies, Vol 3: September, 2006.

Ken Jenkins, “The Truth is Not Enough: How to Overcome Emotional Barriers to 9/11 Truth,” May, 2009.


David Chandler, “g-Force and the Pentagon Plane,” 2016.

Victoria Ashley, David Chandler, Jonathan H. Cole, Jim Hoffman, Ken Jenkins, Frank Legge, and John D. Wyndham, “The Pentagon Event: The Honegger Hypothesis Refuted, Ver 2,” February, 2019.

John D. Wyndham, “The Pentagon Attack: Eyewitnesses, Debris Flow and Other Issues – A Reply to Fletcher and Eastman,” March, 2016.

John D. Wyndham, “Bringing Closure to the 9/11 Pentagon Debate,” October, 2016.

John D. Wyndham, “The 9/11 Pentagon Attack, Eyewitness Testimonies of LaGasse, Brooks, and Boger

Frank Legge, “Pentagon Witness Excel Spreadsheet,” May 06, 2015.

John D. Wyndham, “The Pentagon Attack: The Event Time Revisited,” March, 2013.
Experiments for “The Pentagon Attack: The Event Time Revisited.”
EXP3, EXP4, EXP5, EXP6, EXP7, EXP8, EXP9, EXP10, EXP11EXP12, EXP13, EXP14

Frank Legge, “The 9/11 Attack on the Pentagon: the Search for Consensus,” June, 2012.

John D. Wyndham, “The Pentagon Attack: Problems with Theories Alternative to Large Plane Impact,” First published in the Journal of 9/11 Studies in January, 2012. Revised March, 2013 (V2) and April, 2016 (V3).

Frank Legge and David Chandler, “The Pentagon Attack on 9/11: A Refutation of the Pentagon Flyover Hypothesis Based on Analysis of the Flight Path,” September, 2011. (pdf)
Frank Legge and David Chandler, “Addendum…,” December, 2011.

Frank Legge and Ken Jenkins, “Why Not Use a Plane? Fake vs. Real Events.”

Frank Legge and Warren Stutt, “Flight AA77 on 9/11: New FDR Analysis Supports the Official Flight Path…,” January, 2011.

Frank Legge and Warren Stutt, “Response to Rob Balsamo,” January, 2011.

David Chandler and Jon Cole, “Joint Statement on the Pentagon” January, 2011. (pdf)

David Chandler, “Why the CIT Analysis of the Pentagon Event on 9/11 Should Be Rejected Outright,” December, 2017.

Frank Legge, “What Hit the Pentagon? Misinformation and its Effect on the Credibility of 9/11 Truth,” February 15, 2010. Updated Version January, 2015.

Ken Jenkins and David Chandler, “The Pentagon Plane Puzzle,” September 2016.

Ken Jenkins, “The 85 Pentagon Area Surveillance Cameras.”

Wayne Coste, narrated by David Chandler, “Explanation of the Evidence at the Pentagon on 9/11,” September 2018.

World Trade Center – Air

Kevin R. Ryan, James R. Gourley, and Steven E. Jones, “Environmental Anomalies at the World Trade Center: Evidence for Energetic Materials,” The Environmentalist, 29 (2009): 56-63. (Also online August 4, 2008).

World Trade Center – Dust

Niels H. Harrit, Jeffrey Farrer, Steven E. Jones, Kevin R. Ryan, Frank M. Legge, Daniel Farnsworth, Gregg Roberts, James R. Gourley and Bradley R. Larsen, “Active Thermitic Material Discovered in Dust from the 9/11 World Trade Center Catastrophe,” The Open Chemical Physics Journal, 2009, 2,7-31.

Jim Hoffman, “Explosives Found in World Trade Center Dust,” December 7, 2009.

Jim Hoffman, “Thermitic Pyrotechnics in the WTC Made Simple,” April 26, 2009.

World Trade Center – Dynamics

David Chandler, “Destruction of the World Trade Center North Tower and Fundamental Physics,” Journal of 9/11 Studies, Volume 28 – February, 2010.

Crockett Grabbe, “The Rapid Graceful Collapse of World Trade Center Building 7,” February 10, 2009.

Crockett Grabbe, “Direct Evidence for Explosions: Flying Projectiles and Widespread Impact Damage,” August, 2007.

World Trade Center – Temperatures

Steven E. Jones, Jeffrey Farrer, Gregory S. Jenkins, Frank Legge, James Gourley, Kevin Ryan, Daniel Farnsworth, and Crockett Grabbe, “Extremely High Temperatures during the World Trade Center Destruction,” Journal of 9/11 Studies, January, 2008.

Terry Morrone, “Proof that the Thermal and Gravitational Energy were Insufficient to Melt Steel in the Twin Towers and 7 World Trade Center on 9/11/01,” Journal of 9/11 Studies, April, 2007.