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'm thinking what we are seeing is the pressure releasing through the windows. If you took a ziploc bag and squished it....it has to vent pressure to flatten.