the trusses vs columns was just a for instance..an example of alternatives...but the question he repeatedly ask and received no reply seem to be his biggest problem..and one of those questions is..if no test show the temperatures required to weaken steel...where did that heat come from ? another is to ask why the alternative theorys were not tested as promised...and those test included..hypothetical blast scenarios...clearly he feels a independent investigation is required
What temperatures did they find the steel was subjected to?
about 500f exactly what you would expect to find in a normal building fire
Really?
I guess you just directly refuted your own claim that thermite was used since it burns at 4500F.
Have you done any research to find out what temperatures building fires can reach? I posted links, but you ignored them.