9/11 Photo of WTC construction showing massive central core
To dispute the false assertion that the WTC was a "hollow tube" design as per the "9/11 Commission Report" a lie regurgitated by Wikipedia and other disinformation channels. No engineer can honestly claim that the World Trade Center was hollow since its core was constructed of 47 steel columns some of which measured 52” x 22” and 5” thick.
“Some of the core columns apparently had outside dimensions of 36 inches by 16 inches. Others had larger dimensions, measuring 52 inches by 22 inches. The core columns were oriented so that their longer dimensions were perpendicular to the core structures' longer, 133-foot-wide sides.”
“The core columns were steel box-columns that were continuous for their entire height, going from their bedrock anchors in the sub-basements to near the towers' tops, where they transitioned to H-beams. Apparently the box columns, more than 1000 feet long, were built as the towers rose by welding together sections several stories tall. The sections were fabricated by mills in Japan that were uniquely equipped to produce the large pieces.” -Found at: www.911research.wtc7.net –Emphasis added by author