"Yes, it was a simplification. But if crush-down or progressive collapse does not work with something uniform like a beer-can it cannot possibly be applied to a structure that is stronger at the bottom than at the top. Chuck Baldwyn's diagram is…"
""Richard Gage on the crush-down crush-up theory of Bazant to know what bunkum it is.“Evidently this crush down model and theory is complete nonsense, but it is the official explanation(s) of the WTC 1 destruction on 9/11! A small, fairly…"