fix articles 555752, residue
BYU Physics Prof Finds Thermate in WTC Physical Samples, Building Collapses an Inside Job (tags)
author: Jacob Hamblin Based on chemical analysis of WTC structural steel residue, a Brigham Young University physics professor has identified the material as Thermate. Thermate is the controlled demolition explosive thermite plus sulfur. Sulfur cases the thermite to burn hotter, cutting steel quickly and leaving trails of yellow colored residue.