Well Bill, I DID! Or was it you who missed my posts????......you're over the hill you old coot.
.......simple shit never reads my stuff....***grumble***grumble***.....Rita's probably going nuts with him around.....

The WTC was unlike anything else. On one of the shows I finally heard a great explanation as to the strength of the design. If two people stand facing each other locking arms and lean back, they can stay that way with ease and for a very long time. If you break the arm lock, they fall and anything they're holding falls as well.

The beams and structural members that made up the floor/ceiling sections were simply strong enogh to hold the exo-skeleton in place. Adding weight to the floor actually made the building more rigid. No one argues that the firecoating material on these support structures was less than perfect and too thin to begin with. The concussive force also dislodged much of it as well. As soon as one floor gave way the pancaking began and there is some unbelievably excellent film of that happening now available. Again, I don't recall if that was the NOVA or Discovery/History/A&E programs but the footage was the best I had seen and the angle made it obvious how the fall happened.

As to the heat of the fire and the drafts created....ask the helicopter crews. Talk about guys still living it........

Spaw