nath said:Granted there are some moronic conspiracy theorists out there, but not all conspiracy theories are moronic themselves. As for the Pentagon thing, I've no idea if a plane crashed in to it or a missle. Tbh I trust the media about as much as I trust crackpot conspiracy theorists so it's difficult to know what to believe.
Most of the time I don't really give a toss
It is known that structural steel begins to soften around 425°C and loses about half of its strength at 650°C.4 This is why steel is stress relieved in this temperature range. But even a 50% loss of strength is still insufficient, by itself, to explain the WTC collapse. It was noted above that the wind load controlled the design allowables. The WTC, on this low-wind day, was likely not stressed more than a third of the design allowable, which is roughly one-fifth of the yield strength of the steel. Even with its strength halved, the steel could still support two to three times the stresses imposed by a 650°C fire.
The additional problem was distortion of the steel in the fire. The temperature of the fire was not uniform everywhere, and the temperature on the outside of the box columns was clearly lower than on the side facing the fire. The temperature along the 18 m long joists was certainly not uniform. Given the thermal expansion of steel, a 150°C temperature difference from one location to another will produce yield-level residual stresses. This produced distortions in the slender structural steel, which resulted in buckling failures. Thus, the failure of the steel was due to two factors: loss of strength due to the temperature of the fire, and loss of structural integrity due to distortion of the steel from the non-uniform temperatures in the fire.
It's an interesting theory, and could well be true. Of course maybe it's not. Hardcore conspiracy theorist sceptics are just as bad as hardcore conspiracy theorists who think the royal family are all lizard people. You put so much blind trust in to the establishment and have this attitude that conspiracies could never exist it's simply absurd. As I said before, I don't know what happened and I doubt I ever will but I totally accept the possibility that it could be a conspiracy. Lose the fucking stigma about them and stop assuming that anyone who thinks people in power aren't entirely trustworthy also believe that they've been abducted by aliens and used to repopulate their race.Tom said:And that nicely contradicts what people say about kerosene not burning hotly enough to melt steel.
Tom said:/edit: Oh BTW, the above quotes aren't exactly a theory, since they draw their conclusions from the wreckage (bent struts, broken joints, etc)
nath said:You really are an obnoxious **** aren't you.
Tom said:Just like I can theorise that a car wrapped around a lamp post got that way because somebody was driving it badly.
nath said:You really are an obnoxious **** aren't you.