9-11 Research:Shredding of Steel
9-11 Research:Distributed Explosives
•Melted appearance of columns
Photographs show steel column sections draped over Buildings 3 and 6 looking as if they had nearly melted in mid-air. Explosives would have shattered structures but would not have uniformly heated beams so that they behaved like wet noodles.
•Rapid oxidation and intragranular melting of steel pieces
The limited metallurgical examination of some of the few pieces of structural steel that escaped the blast furnaces shows very peculiar features, such as rapid oxidation turning inch-thick steel into paper-thin scrolled pieces, cavitation giving steel the appearance of Swiss cheese, and intragranular melting. These suggest a more exotic process of destruction than mere explosives.































































