Editor’s Note: Frances Shure, M.A., L.P.C., has performed an in-depth analysis addressing a key issue of our time: “Why Do Good People Become Silent — or Worse — About 9/11?” The resulting essay, being presented here as a series, is a synthesis of both academic…
Abstract: This paper investigates the energy dissipation potential of axially loaded columns and evaluates the use of a plastic hinge model for analysis of hi-rise building column collapse under extreme loading conditions. The experimental program considered seven axially loaded H-shaped extruded aluminum structural section columns having…
Editor’s Note: Frances Shure, M.A., L.P.C., has performed an in-depth analysis addressing a key issue of our time: “Why Do Good People Become Silent — or Worse — About 9/11?” The resulting essay, being presented here as a series, is a synthesis of both academic…
Editor’s Note: Frances Shure, M.A., L.P.C., has performed an in-depth analysis addressing a key issue of our time: “Why Do Good People Become Silent — or Worse — About 9/11?” The resulting essay, being presented here as a series, is a synthesis of both academic…
Editor’s Note: Frances Shure, M.A., L.P.C., has performed an in-depth analysis addressing a key issue of our time: “Why Do Good People Become Silent — or Worse — About 9/11?” The resulting essay, being presented here as a series, is a synthesis of both academic…
In the last section of their book covering WTC 7, Popular Mechanics discusses the fact that the steel from Ground Zero was quickly removed from the site and recycled. PM’s writers attempt to explain why there was nothing unusual about this speedy cleanup of Ground Zero, and we see that, once again, their excuses are groundless.
Abstract: This article elaborates on variables associated with the collapse of the North Tower of the World Trade Center. The previously published quantifications of inertia, column capacity, and the assumptions related to the beginning of downward motion, are examined and corrected. The reasons for false…
Abstract: The importance of understanding the mechanisms of collapse for the three World Trade Center buildings on September 11, 2001 cannot be over-estimated, for these unusual collapses and their disputed causes raise questions regarding all future steel-frame building design. A literature review was conducted to identify…
Popular Mechanics’ next section deals with another controversial issue in the debate regarding WTC 7: the infamous “pull it” quote from WTC 7 owner Larry Silverstein. And while Popular Mechanics’ section regarding 9/11 survivor Barry Jennings may be true in some areas, it is completely false in others.
Popular Mechanics’ next section discusses the actual collapse of WTC 7 and the condition of the wreckage pile after it collapsed. It creates the impression that both of these issues can be explained by natural means rather than demolition. As we shall see, this is simply not the case, as with virtually all of PM’s arguments against demolition.