93 Building 7 collapsing on 9/11. This building was not hit by a plane. The official explanation is that office fires weakened the structure and a triggered a chain reaction which caused it to collapse. This is the steel skyscraper in history to collapse from fires. (www.youtube.com) posted 2 years ago by scata90x 2 years ago by scata90x +94 / -1 36 comments share 36 comments share save hide report block hide replies
I know...but the "bottom up" isn't visible because that part of the building is blocked from view. Also, some charges may not have activated in sequence, or at all.
Everyone within earshot reported those charges -- "boom -- boom -- boom!"