The 9/11 Forum

WTF happend to this building?

http://www.youtube.com/watch?v=qmiApjHn4e8

peterene1 wrote:WTF happend to this building?
http://www.youtube.com/watch?v=qmiApjHn4e8

It would be useful if the start of the clip was available, but I've not managed to find it yet.
Have done a SuperResolution version, but there's not much to be gleaned from it.

Looks like the geet big demolishing ball (or whatever they are called) did a good job of triggering progressive horizontal collapse.

It would be interesting to know what/if additional prep was performed.

It would be interesting to see it from another angle, especially what happens at the base.

It would be interesting to know some de/construction details.

Not sure how it relates to WTC 1 & 2, but I'm not one who thinks progressive collapse in itself is impossible. Their descent was a very different kettle of fish.

Interesting. Thanks for posting it.

A practical example of lateral collapse progression. Rather slow, doesn't happen "in a blink of an eye" just as we would expect.

For WTC7 maybe the biggest mystery is that of a ridiculously fast lateral collapse propagation speed.

The collapse of vertical supports was practically instantaneous across the building.


A "domino type" lateral wave of destruction is possible as the video shows. The WTC7 mystery is in the speed of propagation.


Guys, we need a good WTC7 "list of questionable features". It is not nice to see WTC7 neglected for so long. WTC7 should be at the top of the list in any 9-11 argument.

One very questionable feature is the fact that in the real collapse there is essentially no deformation of the exterior while the lateral collapse of the entire interior alleged by the NIST is supposedly occurring.

And the windows staying intact except two small areas! (under the east penthouse and over the truss number 3).

But of course, I belive that the twin towers cores collapsed without breaking too much windows too, but this is different case.......(shorter sapan between the core and windows? partial core collapse versus the WTC7 full core collapse as proposed by NIST.....

peterene1 wrote:And the windows staying intact except two small areas! (under the east penthouse and over the truss number 3).

But of course, I belive that the twin towers cores collapsed without breaking too much windows too, but this is different case.......(shorter sapan between the core and windows? partial core collapse versus the WTC7 full core collapse as proposed by NIST.....

The inward bowing in the towers is most probably a sign that the core collapsed first. The windows certainly broke when the perimeter columns were pulled in and buckled. I just don't think it can be noticed in the same way as those few of WTC 7 because there the exterior of the upper part of the building was just falling due to the demolition occurring from the bottom up, where in the towers the demolition occurred from the top down.

I also have serious doubts that the inward bowing actually occurred prior to the collapse initiation of the core. If it did we would have video of it.

Ah, I don't think that you fully understand me.

but first:

I also have serious doubts that the inward bowing actually occurred prior to the collapse initiation of the core. If it did we would have video of it.

I don't know what do you mean by that, both towers were clearly photographed with inward bowing minutes before the collapse (up to 30 minutes in the ST and some 5 minutes in NT).

To the main point: of course, the collapse was initated via the core, the IB proves it

but it propagated down by taking down the core

it can be easily proven that the debris inside the twin towers hit the ground well before the freefalling mass outside reached the plaza level

this is discussed in excellent documentary - NORTH TOWER

it's in computerized german, but if you set the video to HQ and watch it fullscreen you can read the captures, that's enough to understand

http://www.youtube.com/view_play_list?p ... 0A7DA7D04A

This happened in the Netherlands, to a building which was already stripped and prepped for demolition.

Then, somebody tapped the wrecking ball against some section of the building the wrong way, and it fell like a house of cards.

If desired, I will look up and translate the Dutch reporting on this incident. It was not an intact structure, but a gutted structure, prepped for destruction, that demolished itself by accident.

Note that this incident has been cited at JREF as evidence for NIST's conclusions for WTC 7 without giving this very important contextual/background information at all.

I'm currently working at that area but didn't know this happened. Cool video, an absolute natural collapse, exactly what one would expect, it's almost a house of cards.

Progressive collapse, CD or CD via progressive collapse, doesn't matter.

Even if WTC7 suffered fire induced progressive collapse (on steroids)..it can not explain the simultaneous 100m wide onset of freefall.

BUT maybe 2 or 3 (simultaneous) progressive collapses (east, middle, west) can explain the behaviour.