The primary researcher on the subject of the WTC towers having built-in explosives (but not detonators) is Christopher Brown, a surveyor and heavy-machine operator (among other professions) who is very familiar with construction practices. Here's his website:
http://algoxy.com/psych/9-11scenario.html He found that each tower had a huge reinforced-concrete core (which was omitted from the FEMA diagrams and replaced with additional steel box columns). The core can be seen in a few frames of the demolition videos. He and others also saw a PBS documentary around 1990 that showed the construction procedure in detail, including the pouring of the core around 3 inch thick rebars. These rebars had a thick coating of a rubbery material that was said to protect them from corrosion and to provide some cushioning and "give" between them and the concrete. Strangely enough, this coating was extremely flammable, and the welding of the rebars to those of each new level was done by special welders with security clearances! Chris thinks the coating was C4, or something similar. Here are articles I found in a search of the Web and Usenet that mention the cores: http://cosmicpenguin.com/911/chrisbrown/corerefs/index.html The thermite (or similar material), which was mainly used at the base of the steel columns, may have been put in place shortly before 9-11. The hollow columns probably had inspection holes, and the powder could have been poured inside them, which would have eliminated the need for refractory dams to contain the combustion product while it melted through the columns. By substituting another oxidizer for the iron oxide in thermite, one in which the oxygen is much less tightly bound, the energy of the reaction can be increased substantially. Mark On Fri, Apr 28, 2006 at 09:46:17AM -0700, Jones Beene wrote: >----- Original Message ----- >From: "Zell, Chris" > >>Lots of fun with thermite > >Surprised that they didn't get Jim Caey and Jeff Daniels to help >out with that one... > >Not to worry... we can add the obligatory dumb-and-dumber humor, >here on Vo. > >... and hey: Not coincidental that the Steven Jones vid. is in >with these, eh? > >http://video.google.com/videoplay?docid=6023596331085044923&pl=true > >Many who do not know what thermite is, have mistakenly assumed >that it must be "like dynamite" and have wondered how any sane >building owner could 'rig' a building with it, far in advance >(even a decade in advance is not out of the question) and not >expect an accidental discharge. "Sane' being a key concept which >is often overruled by 'greed'. > >The stuff is real hard to ignite, and burns very hot. Of course, >no one would knowingly work in any high-rise which has been >preloaded with it - which is why they (building owners and >architects) don't want this 'minor' detail known... As about half >of the secretaries in Lower Manhattan would go on strike and stop >'dictation' or whatever they do for their bosses, if they knew >their building was on "the list," as was WTC. > >Hmmm...what was that detail about the WTC "rubble fire" going on >for weeks on end - and at "far higher" temperature than the >well-known burn temperature of jet fuel. > >Ah shucks, that's just a wild and ridiculous conspiracy theory, >no? > >Signed, > >Harry Tuttle > Ductwork technician and thermite-eradicator > >
