Seventeen years after he forced NIST to backtrack on its false claim that Building 7 did not come down in free fall, retired physics teacher David Chandler has produced yet another measurement that blows the NIST World Trade Center investigation out of the water.
This time around, Chandler has taken aim at NIST’s unproven assertion that the vertical drop of the North Tower’s antenna, which began a half-second prior to the downward motion of the building, was merely an illusion caused by the top of the building along with the antenna tipping southward as the exterior columns on the south face allegedly gave way before the rest of the structure.
In his recent paper in the Journal of 9/11 Studies, Chandler proves that the antenna did indeed experience a vertical drop prior to any significant tipping, which must have been caused by the simultaneous failure of all of the core columns prior to the failure of any exterior columns. This finding invalidates NIST’s scenario that the collapse of the North Tower initiated along its south face. It also solidifies yet another piece of evidence for controlled demolition.
In this episode of IC911’s new podcast, IC911 Executive Director Ted Walter speaks with Chandler and civil engineer Jonathan Cole about the significance of Chandler’s new paper. We hope you find it informative!

About the Guests
David Chandler has been actively researching the scientific aspects of 9/11 since 2007. He is currently the coordinator of Scientists for 9/11 Truth in addition to serving on the board of the International Center for 9/11 Justice. Chandler is best known for his research into the dynamics of the World Trade Center building collapses — which is documented in the many analytical videos he produced and narrated as well as in papers — and for forcing the National Institute of Standards and Technology to admit that WTC 7 underwent more than two seconds of absolute free fall. He has also extensively studied the attack on the Pentagon.
Jonathan Cole, PE, has been a registered professional engineer for over 35 years. In 2010, he began conducting real-world experiments in his backyard to either prove or disprove the official explanation of the Twin Towers and Building 7’s destruction. He is well-known for the videos he made documenting these experiments, all of which can be found at his YouTube channel physicsandreason and at 911speakout.org.