microspheres

Source: https://www.youtube.com/watch?v=hyFIHZwMm4w In something of an experiment, I've made a detailed video focussing on one small claim of evidence. The claim is that the presence of iron microspheres in the World Trade Center dust means that high temperature incendiaries were used to...

"How much", or "how many"? AE911 says: http://www1.ae911truth.org/home/348-previously-molten-iron-spheres-were-in-wtc-dust-reveal-use-of-thermitic-materials.html The fraction of microspheres in the dust varied (between 0.2 and 1.3 % for USGS outdoor samples and a mean of 5.87% for all RJ Lee...