17-05-2011, 02:00 AM
(This post was last modified: 22-05-2011, 03:40 AM by Jeffrey Orling.)
Jack,
Structures don't collapse without stress or some mechanism or energy input to destroy them. A top down collapse has to be driven from the very top... as in a huge weight.. such as a wrecking ball being dropped on them. And that is not gonna happen for many reasons.
The twin towers were NOT a "perfect" top down collapse. Watch the video of tower one for example. Notice that when the obvious destruction begins the destruction it appears to be at about the 96 floor or so with the 12 to 14 stories above them collapse DOWN .. so we see floor 97 "destroyed" and then the the floors above them drop and then the 98th floor is destroyed and the floors above them collapse, then the 99th floor is destroyed and the floors above them collapse... and so on until all those 12-14 floors have been destroyed. AND WE DON'T KNOW HOW THEY WERE DESTROYED. But the top section's bottom seems to be collapsing "into" and spilling over the 96th floor. You can think of the top section as a typical CD where the columns at bottom floor of 14 story building are taken out and the 14 stories collapse down.
THEN and only THEN does the ROOSD top down collapse begin as the mass of those 12-14 floors or what didn't fall over the side... becomes the ROOSD avalanche crushing each successive floor in its path to the ground.
The towers were unique in design and they were "attacked at the top... unlike virtually any building in the world. So they were unique and each saw the same type of assault and likely had the same sort of engineering to assist their collapse. Probabilities have nothing to do with their collapse.
Structures don't collapse without stress or some mechanism or energy input to destroy them. A top down collapse has to be driven from the very top... as in a huge weight.. such as a wrecking ball being dropped on them. And that is not gonna happen for many reasons.
The twin towers were NOT a "perfect" top down collapse. Watch the video of tower one for example. Notice that when the obvious destruction begins the destruction it appears to be at about the 96 floor or so with the 12 to 14 stories above them collapse DOWN .. so we see floor 97 "destroyed" and then the the floors above them drop and then the 98th floor is destroyed and the floors above them collapse, then the 99th floor is destroyed and the floors above them collapse... and so on until all those 12-14 floors have been destroyed. AND WE DON'T KNOW HOW THEY WERE DESTROYED. But the top section's bottom seems to be collapsing "into" and spilling over the 96th floor. You can think of the top section as a typical CD where the columns at bottom floor of 14 story building are taken out and the 14 stories collapse down.
THEN and only THEN does the ROOSD top down collapse begin as the mass of those 12-14 floors or what didn't fall over the side... becomes the ROOSD avalanche crushing each successive floor in its path to the ground.
The towers were unique in design and they were "attacked at the top... unlike virtually any building in the world. So they were unique and each saw the same type of assault and likely had the same sort of engineering to assist their collapse. Probabilities have nothing to do with their collapse.