Shaped Charges and the World Trade Center Collapses
Here’s what demolition experts use in steel framed buildings, the linear shaped charge … It generates around 3,000,000 psi pressure … at a speed in excess of 27,000 feet per second … There are over 1000 different types of explosive … With the use of delays we can control … where the debris lands … vibration … noise level. http://whatreallyhappened.com/WRHARTICLES/wtc_charges.html