Quote Originally Posted by ENT
"The falling mass of the building compressed the air ahead of it, much like the action of a piston, forcing material, such as smoke and debris, out the windows as seen in several videos."
Great, except this is exactly what happens with a pancake collapse and why I asked previously if yourself and the others of your ilk understood what a pressure wave was? It not only blows outward but in the process sounds like an explosion.. Again try clapping your hands together the effects are the same..