Popular Mechanics, October 1935.
“Huge ‘overshoes’ in the form of cupolas made of steel and lined with firebrick were constructed around two legs of the tower and filled with 1,500 pounds of thermite, a mixture of aluminum and iron oxide. When fired by electricity, the thermite generated a temperature of more than 5,000 degrees about the two legs, melting the ten-foot sections almost instantly, causing the tower to tip and then to crash.”
–Popular Mechanics, October 1935.
James Meigs, Editor of Popular Mechanics claims thermite cannot cut steel in 2006