On 6 Nov 2005, at 09:06, John Milne wrote:
it's highly unlikely that those jet plane hi-jackers knew that crashing into the Towers at 80 floors or above would inevitably cause the metal superstructure to melt, because of super-heated aviation fuel, and eventually two of the world's biggest buildings would simply dissappear (I don't think anyone EVER suspected this could possibly happen).
apparently, when you design a skyscrapper, you have to take into account all sorts of unlikely things - weather conditions far worse than would ever occur, all sorts of things like that - and you also have to take into account something along the lines of a total catastrophy - and for years, the stock example for that has been what if a 747-size plane crashes into it - or at least, it had been for years by the time my father was studying engineering of course, i guess the WTC may have been designed and built before that kind of planning came in to practice - but i wonder if the brains behind the wtc didn't study civil engineering at some point, or knew someone who did