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OOS Collapse Propagation Model

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No, I mean...

Let me ask you...

What angle did WTC 1 tilt through before vertical drop began ?

AHAHAHA
Another day and another epic failure for the charlatan uneducated femr.

Don't you get tired of peddling your delusional wares only to find no takers?

Get back to answering high school level elasticity problems kid..oh, wait, you botched that also.
 
How does the degree of tilt before / after / during the drop of the top part of the WTC tower fit into any scenario of yours?
It is part of the data required to determine accurate building movement, which in turn allows determination of initiation sequence events. It is not appropriate to expand on such without much supporting detail (that I don't have time to go into at the moment), but essentially points strongly towards core failure in advance of south face failure. And some other *stuff*.
 
It is part of the data required to determine accurate building movement, which in turn allows determination of initiation sequence events. It is not appropriate to expand on such without much supporting detail (that I don't have time to go into at the moment), but essentially points strongly towards core failure in advance of south face failure. And some other *stuff*.

I'd be happy to read your results and any other perceived "errors" from the NIST reports. I'm also in contact with them from time to time.

And yes I have found a mistake or two in the NIST report.
 
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It is part of the data required to determine accurate building movement, which in turn allows determination of initiation sequence events. It is not appropriate to expand on such without much supporting detail (that I don't have time to go into at the moment), but essentially points strongly towards core failure in advance of south face failure. And some other *stuff*.
Well you obviously aren't an engineer, or anyone well-versed in architecture, demolition or the building trades, so what the **** is the difference to you? What do you hope to accomplish with this analysis?
 
It's pretty accurate.


Interpretation is always of note, but if all it takes is another interpretation that you prefer to result in something being *proved*, I would not be impressed at all.

How else is one supposed to interpret this...


Very different to your re-interpretation that they are talking about dust obscuration.

In order to determine the correct initiation sequence, these details really should be very clear, and very accurate.

Sorry one other thing I forgot to ad as I continue to re-read some of this. Both femr2 and Major tom seemed to have also missed Major tom's own post
http://www.internationalskeptics.com/forums/showpost.php?p=6033362&postcount=520

Which states under finding 26
"A tilt to the south of at least 8 degrees occurred before dust clouds obscured the view and the building section began to fall downwards."

1-6draft p 290, figure 9-8 on probable collapse initiation sequence for WTC1:
• The entire section of the building above the impact zone began tilting as a rigid block (all four faces; not only the bowed and buckled south face) to the south (at least about 8º) as column instability progressed rapidly from the south wall along the adjacent east and west walls.
• The change in potential energy due to downward movement of building mass above the buckled columns exceeded the strain energy that could be absorbed by the structure. Global collapse then ensued.
 
femr2 seemed to have also missed Major tom's own post

No, and I imagine you already know that is the case by your selection of the post from me you quoted.

I quoted NISTs most specific description, which is repeated verbatim several times in the report, asking how else it should be interpreted, pointed out that NIST contradicting themselves was not my responsibility, and focussed on the important end result...

Vertical drop of the upper section began after rotation of roughly 1 degree, regardless of how many times it says in the NIST report that *Rotation of at least 8 degrees to the south ocurred before the building section began to fall vertically under gravity.*

I assume you have no issue with that.
 
No, and I imagine you already know that is the case by your selection of the post from me you quoted.

I quoted NISTs most specific description, which is repeated verbatim several times in the report, asking how else it should be interpreted, pointed out that NIST contradicting themselves was not my responsibility, and focussed on the important end result...

Vertical drop of the upper section began after rotation of roughly 1 degree, regardless of how many times it says in the NIST report that *Rotation of at least 8 degrees to the south ocurred before the building section began to fall vertically under gravity.*

I assume you have no issue with that.

You mean yes you missed it. Or you wouldn't have made such a post earlier. I was just shocked as to the continual false claims you kept making after even presented with the more detailed information.

As we clearly know it wasn't the most specific descriptions. For example see NCSTAR 1-6D 312. The report stated that these were summaries based on the examinations of video and photos from NIST NCSTAR 1-6.

Also does NIST say "Rotation of at least 8 degrees to the south occurred before the "upper" building section began to fall vertically under gravity." As you seem to imply? It's likely that ambiguity that's causing the misinterpretation.

Can we agree that NIST states that the "Upper building section moves downward" before the rotation of the upper block at 8 degrees. That they support this with photos and times of 10:28:18 and 10:28:20.

Can we agree that the NIST report states more than once that the Rotation of the upper block reached at least 8 degrees to the south before being obscured by the smoke?

Can we agree we now know how NIST came up with 8 degrees? Because we now have the images they used, timeline and various figures.

Can we agree that you and major tom missed vital answers that gave a solution to the problem?
 
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You mean yes you missed it.
No, I mean't exactly what I said.

I was just shocked as to the continual false claims you kept making after even presented with the more detailed information.
Hilarious. More detailed ? Absolute rubbish.

As we clearly know it wasn't the most specific descriptions. For example see NCSTAR 1-6D 312. The report stated that these were summaries based on the examinations of video and photos from NIST NCSTAR 1-6.
Then show me the more detailed data which determines the angle through which the upper section of WTC 1 rotated before vertical drop ensued :)

And whilst I'm there...

Kent1 said:
They clearly note the downward movement before the 8 degrees
Where ?

Also does NIST say "Rotation of at least 8 degrees to the south occurred before the "upper" building section began to fall vertically under gravity." As you seem to imply? It's likely that ambiguity that's causing the misinterpretation.
I'm not interested in your obsession to present NISTs poorly worded, ambiguous and sloppy work, full of contradictions as being the fault of the reader.

Can we agree that NIST states that the "Upper building section moves downward" before the rotation of the upper block at 8 degrees. That they support this with photos and times of 10:28:18 and 10:28:20.
No. NIST states, repeatedly...
Time - 10:28:20, Time from impact - 102 min - WTC 1 began to collapse. First exterior sign of collapse was at Floor 98. Rotation of at least 8 degrees to the south ocurred before the building section began to fall vertically under gravity.


Can we agree that the NIST report states more than once that the Rotation of the upper block reached at least 8 degrees to the south before being obscured by the smoke?
Sure, but utterly irrelevant.

Can we agree we now know how NIST came up with 8 degrees? Because we now have the images they used, timeline and various figures.
No.

Can we agree that you and major tom missed vital answers that gave a solution to the problem?
No. The PROBLEM is that rotation of at least 8 degrees to the south DID NOT OCCUR before the building section began to fall vertically under gravity.

Instead...

Rotation of at APPROXIMATELY 1 DEGREE to the south ocurred before the building section began to fall vertically under gravity.

That being the point of course, and one you have already agreed by stating you are okay with 1 percent. That's fine as you haven't actually done the leg work to go and find out. 1 degree is a much more accurate value.

(previously discussed refinement of wording should be included, to clarify exactly what is mean't here, but the point remains)

You have also agreed that there are mistakes in the NIST report. All good. Keep it up.
 
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femr2, you aren't a complete moron, so I know that you understand my point. Please don't pretend otherwise, like your co-religionists do.

How does the degree of tilt before / after / during the drop of the top part of the WTC tower fit into any scenario of yours? What is the significance? How does it fit into your broader hypothesis of the days events? Why are you discussing it in a forum about "9/11 conspiracy theories?"

What do you hope to accomplish with this analysis?
:rolleyes:
 
I'm not interested in your obsession to present NISTs poorly worded, ambiguous and sloppy work, full of contradictions as being the fault of the reader.
Poorly worded, yes; ambiguous, yes; sloppy, opinion; full of contradictions, definitely not in this case, as the ambiguities are resolved by fact checking. Bazant understood it properly and he's a qualified person.

No. The PROBLEM is that rotation of at least 8 degrees to the south DID NOT OCCUR before the building section began to fall vertically under gravity.
Bazant definitely doesn't interpret they meant the top building section. He's an engineer and his interpretation is in a peer-reviewed paper. Can you show another peer-reviewed, published paper written by a qualified engineer where the interpretation matches yours? If so, you have a case.

You have also agreed that there are mistakes in the NIST report. All good. Keep it up.
Hey, I also pointed out one, here: http://www.internationalskeptics.com/forums/showpost.php?p=6246923&postcount=1033
 
Bazant definitely doesn't interpret they meant...
I don't care.

Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

I also pointed out one here
Whatever, though I recommend you read the extensive threads on IB at the911forum before reasserting your views on the mechanisms, and full understanding of how trace data is used to help determine initiation sequencing before asserting that alternate views are based upon looking at images (which is what you appear to be saying).

I'll say it again, so we're all clear...

I'm not interested in arguing about how many different ways NIST texts, that should be accurate and unambiguous, can be interpreted.

Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

Sorted :)
 
As I stated in my first post in Figure 6-8 "UPPER building section moving downward" this is at 10:28:18 noted in table 6-1

I'm not interested in your obsession to present NISTs poorly worded, ambiguous and sloppy work, full of contradictions as being the fault of the reader.
Dodge. But I'll agree that its poorly worded. But the ambiguities are resolved by simple fact checking.
No. NIST states, repeatedly...
Yet again your missing table 1 and figure 6-8.

Why what did I say wrong. Have you looked at the section yet? pg156-166
No. The PROBLEM is that rotation of at least 8 degrees to the south DID NOT OCCUR before the building section began to fall vertically under gravity.

Don't you mean yes. You both clearly missed NIST 1-6 fig 6-8 and 6-11
 
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As I stated in my first post in Figure 6-8 "UPPER building section moving downward" this is at 10:28:18 noted in table 6-1

Dodge. But I'll agree that its poorly worded. But the ambiguities are resolved by simple fact checking.

Again your missing table 1 and figure 6-8

Why what did I say wrong. Have you looked at the section yet? pg156-166


Don't you mean yes. You both clearly missed NIST 1-6 fig 6-8 and 6-11
I am not interested in your obsession.

Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

(no matter how many times it is stated in the NIST report that *Rotation of at least 8 degrees to the south ocurred before the building section began to fall vertically under gravity. *)

;)
 
I am not interested in your obsession.

Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

(no matter how many times it is stated in the NIST report that *Rotation of at least 8 degrees to the south ocurred before the building section began to fall vertically under gravity. *)

;)
You were interested before.
So we are on the same page now?
You know its ok to say your wrong from time to time. I wont bite.

We wont think any less of you.:cool: Just the opposite.
 
I am not interested in your obsession.

Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

(no matter how many times it is stated in the NIST report that *Rotation of at least 8 degrees to the south ocurred before the building section began to fall vertically under gravity. *)

;)
It would be at 0.00001 degree (like close to zero, but the building has not started to fall vertically, it is rotating; rotation, is that not in the 911 truth cult book of stupid claims);); add geometry to the list of talents not used by 911 truth. Can 911 truth get anything right? ;) But NIST is right anyway; you don't understand geometry or you can't read for comprehension; which is it?

It is a talent of 911 truth to quote mine, cherry-pick and make up worthless idiotic nothings like this as they try to back in some idiotic conspiracy theory claim. Why are you acting like 911 truth?

Funny, it is clear what NIST means, but comprehension is also a talent not used by 911 truth. ;)

As you quibble about NIST, your CD delusion remains in the fantasy world of 911 truth, where no lie is too stupid to post to the world, on the Internet. It does not matter what NIST said, impacts and fires caused the collapse of the WTC towers. ;););)


NIST is right, and 911 truth can't read for meaning. But then 911 truth studies the facade of a collapse when the collapse is internal; 911 truth is not practicing good science, 911 truth is not doing real engineering; 911 truth is trying to back in CD. That is called failure. No evidence for over 8 years and 911 truth only action is bad science.

Publish your quibble! Quick! ;););););) What will you do? lol
 
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You were interested before.
So we are on the same page now?
You know its ok to say your wrong from time to time. I wont bite.

We wont think any less of you.:cool: Just the opposite.
lol. Obsession :)

As long as you keep quoting...

Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

...it'll sink in, and that's good ;)
 
Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.

What is the significance? How does it fit into your broader hypothesis of the days events? Why are you discussing it in a forum about "9/11 conspiracy theories?"

lol. Obsession :)

What is your point? What do you hope to accomplish here with your analysis?

Why won't you and Major Tom publish anything? Why don't you present your hypothesis for peer review? What is your hypothesis?
 
Rotation of the upper section of WTC 1 of APPROXIMATELY 1 DEGREE to the south ocurred before all four corners of WTC 1 began to descend vertically.
I don't care, and I won't care until you show a powerful reason why I should. I've said it looks reasonable but I didn't care to check. For example, I'd have to check if you merely look at the vertical movement and you forget to check if it corresponds to pivoting (noted by the horizontal movement) instead of an actual release of the corner. If the core fails, I'd also be interested in seeing the tilt angle and horizontal displacement after a three story fall, which would be important for a column-to-column impact. So far, I don't care and you keep failing at raising any interest on that, because you (plural) just state interpretations of your observations which I don't have a reason to believe. In order to have a case, you need to explain both towers, not just one, and the notable differences in behavior between them are a tombstone in your hypotheses. Major Tom interpreted the observed bowing in WTC2 as spanning a multiple of three floors matching the points with connections in the core columns, but his own proof proved him wrong. That alone proves his lack of qualification to draw conclusions from the observables, plus his bias while doing so. I have not seen anyone who has proved his qualification confirm any of these findings. Tony doesn't count, he has shown enough incompetence already and I think you might even agree.

Whatever, though I recommend you read the extensive threads on IB at the911forum before reasserting your views on the mechanisms, and full understanding of how trace data is used to help determine initiation sequencing before asserting that alternate views are based upon looking at images (which is what you appear to be saying).
It seems you're reading too much into my words. I don't care if NIST is right or wrong with the conclusions on the collapse mechanism. They already proved the towers were doomed. See this post by tfk:

http://www.internationalskeptics.com/forums/showpost.php?p=5537049&postcount=1040

ETA: Plus I've already stated that their conclusions go far beyond whether the core failed first or the perimeter did, as can be seen by reading THE WHOLE chapters 8 and 9 of NCSTAR 1. Focusing on that is just irrelevant.

I'll say it again, so we're all clear...

I'm not interested in arguing about how many different ways NIST texts, that should be accurate and unambiguous, can be interpreted.
Me neither, except if these are used as an ad-hominem attack against an authority in the field, which is what Major Tom has been doing here.
 
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The only case for CC creep is the NIST virtual model.
Yes, and I think it's a strong case. Regardless of the accuracy, it shows how the fire caused ever increasing creep making some columns fail before the fuel* was exhausted. I've seen several architects and engineers here in Spain saying that they supposed that the towers would fall before it happened. So the case is strong:

- Independent assessments by qualified people predicted the outcome.
- Known effects over steel structures (which probably led to the latter).
- Corroborated by simulations.
- Alternative explanations violate the law of parsimony, indicating without any proof that the plane impacted and some kind of demolition ("controlled", it is inexplicably called) was performed starting precisely on the place where the planes impacted. Belief drives the search for evidence, instead of evidence driving the search for explanations, contrary to any scientific method.

* Office material fuel, not jet fuel. Probably unnecessary to say but just in case.
 
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