One of the more enduring myths of the 9/11 truther movement involves the rapid collapse of the Twin Towers after being hit by the commercial jets six years ago today. The conspiracy theorists insist that a self-initiated collapse could not have occurred, and even if it did, it could not have progressed so rapidly.
Instead, their theories on the impossibility of collapse just got demolished at Cambridge:
The study by a Cambridge University engineer demonstrates that once the collapse of the twin towers began, it was destined to be rapid and total. ...
Dr Seffen was able to calculate the "residual capacity" of the undamaged building: that is, simply speaking, the ability of the undamaged structure to resist or comply with collapse.
His calculations suggest the residual capacity of the north and south towers was limited, and that once the collapse was set in motion, it would take only nine seconds for the building to go down.
clipped from www.captainsquartersblog.com
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