Final Report on the Collapse of World Trade Center Building 7: Free Fall

Important information shows truth about Building 7 collapse.

Abstract: from International Center for 9/11 Justice article.
In its final report on the collapse of World Trade Center Building 7 (WTC 7), the National Institute of Standards and Technology (NIST) described three stages of downward motion in the first several seconds of WTC 7’s descent: a Stage 1 in which the acceleration was less than that of gravity; a Stage 2 in which the building’s north face descended at gravitational acceleration (i.e., in free fall); and a Stage 3 in which the acceleration decreased as the upper portion encountered resistance from below. NIST then claimed that these three stages were consistent with the results of its global collapse analyses.

Whereas NIST measured the downward motion by tracking one point near the center of the north face roofline, we measure the downward motion by tracking four points across the entire width of the north face roofline. We also measure the downward motion of two additional points across the entire width of the west face roofline, the only other face that was captured on video. We find that NIST’s Stage 1 mischaracterizes and obscures the true nature of WTC 7’s downward motion. While a point near the center of the north face roofline did begin to experience minimal downward motion at the time NIST labels as “global collapse initiation,” the rest of the north face and west face rooflines remained essentially motionless for about 1.4 seconds.

After that, the entire north face and west face rooflines instantaneously transitioned to free fall. This instantaneous transition to free fall of the entire measurable roofline is conspicuously absent from NIST’s description of the downward motion. We then show that the observed behavior is not consistent with NIST’s global collapse analyses and conclude by offering a different hypothesis of the building failure that is consistent with the observed behavior.

To read article in full from International Center for 9/11 Justice, go to this link: https://ic911.org/journal/articles/the-instantaneous-free-fall-of-world-trade-center-building-7-and-nists-attempt-to-hide-it/


Green Liberty Bloc is in solidarity with the work of the International Center for 9/11 Justice: click here for introduction to this noble organization: https://ic911.org/

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