He is a person I can't remember seeing before. I can't recall any rebuttal to him on any other threads here or ant thread, anybody else see him (Swedish guy) before? A link would be nice.
YouTube - Nano-thermite took down the WTC?
If anyone truly wants to find a sample, they should suit up in neoprene and go for a dip in the East River. Do you have your PADI?
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Suddenly all diving permits "DENIED", good answer though.
Some welder might want t assemble a boxcolumn the proper size, with bracing, and set a wood fire blazing (with a wind if you like) and then try to bend it even using a press. No way, the crossbracing was H-Beams and if the top cavity was filled with the right sized particles it could be ignited so heat transfer was at a max for as long as possible before that cross-brace would fail, that will give you enough heat that the box would 'sag' combine that sag with a tug on the floorjoists that are cool and with the cement still in place they could bow the outer columns inward, on all 4 sides rather than just the impacted side as the crash was enough to sway the building so a slight bow on that side could be impact damage that didn't spring back.
As a kid we could get the chems from the pharmacy to build crude 'gun powder' 3 simple products and the mixture would melt glass from inside the bottle. No explosion but one hell of a lot of heat. "salt peter' was the main component. Several H-beams filled level with that would wick a lot of heat into the box-columns. In the pic below the very highest part together is the bracing web, make that red hot and there goes the support fore the strongest part of the building. Jet fuel either started the burn or it started the ignition. The stuff we made was ignited by pushing a wooden match in while it was still burning its start-up chems. We never did try to put it out.