fantasiafan said:Ah,very good young anakin padwa, jet fuel was different back in the 70's, and the change was that if enflamed it would burn at a higher temperature, but in any book you read about the WTC before 9/11 you will clearly note that support wasnt only on the outter shell....how stupid is that....some engineering friends you have....
"hey lets build the worlds tallest towers"
"ok, but lets only make supports on the outter shell"
"that sounds like a great idea"
"thanks, lets do another line..."
Obviously I see your watched the MIT expert as well......following the whole thread please...
It was actually a very ingenious design. The money people wanted it to be built and the engineers found a way to do it. The only reason for the failure is that the planes took out too much of the outer beams and damaged a chunk of the inner core as well. Like most construction though, they found a way to save money and go cheap on the insulation.
The main reason for the unexpected damage was not the jet fuel but the difference in momentum/energy between the 707 it was designed for and the planes that hit the towers. (the 767 has up to 25% more mass and a slightly higher cruising speed. Therefore it packs significantly more punch then the 707 - that means up to 25% more energy or physical damage if you prefer, not even considering the feul)