The 9/11 Forum

Shockwave traversing down the East side of the North face of WTC 7:


http://www.youtube.com/watch?v=Bx2Kx2AkXEg

Please download the 1280x720 HD copy and upload it to another location:
http://www.megaupload.com/?d=A9SCYN9X
I'm afraid it's rather large (300Mb)

Smearogram of the relevant position, showing the progression of the shockwave relative to the descent of the East penthouse:

Of course.

This is a video, which shows the fall of the penthouse/penthouse through the building.

The entire section is in freefall or at near freefall acceleration.

The penthouse was supported by columns 79,80,81.

NIST scenario involves only slow buckling/ collapse of column 79 which is than followed by column 80 and a long time after that by 81.

The NIST scenario can not explain the penthouse freefall in any way.

If you study the penthouse suction in 3D than you can see a major smoke suction about 0,5 before the begginig of the penthouses's north wall collapse.

This means that the collapse started by simultaneous collapse of CC 81 and 80.