"CHARLES ANGELICH" wrote to "TOM WALKER" (17 Dec 02  13:05:00) 
 --- on the topic of "Word Trade Center" 
 
 CA> Fire is fire. Jet fuel is no more 'intense' than any other fuel 
 CA> once it begins to burn. Try melting some steel with jet fuel 
 CA> some day and expect to bring a lunch. 
 
You don't have to melt the steel. Heating it above a certain threshold 
will make it start to lose a lot of its tensile and compression strength 
and it begins to sag (turns to butter). If the steel was pushing two 
things apart then it just folds like a piece of cheese between your 
fingers. 
 
BTW the buildings falling straight down is a known failure mechanism 
called pan-cake or accordion mode. The weight of the upper floor falling 
on the one below it causes it to fail instantly and the whole thing 
cascades floor after floor all the way to the ground. The building 
doesn't fall sideways because there is no instability in the lower 
floors. The impact shock only occurs on one floor at a time. 
 
 Mike 
 **** 

... Just wondering if you are still out there in Fido land
--- Blue Wave/DOS v2.30