Reply To: Engineering Prof releases draft report on 9/11 collapse of WTC Bldg 7 in NYC Latest News › Forums › Discussion Forum › Engineering Prof releases draft report on 9/11 collapse of WTC Bldg 7 in NYC › Reply To: Engineering Prof releases draft report on 9/11 collapse of WTC Bldg 7 in NYC September 14, 2019 at 09:21 #47150 Dave Except there was nothing being crushed, it was just exploding into dust, but as you rightly say some of the 220 stories of reinforced, concrete iron and steel didn’t turn to dust!