femr,
You are one confused puppy.
Are you illiterate as well as innumerate?
I am asking you:
The is not one mention of "progressive collapse mechanisms" in any of that. I'm asking you about YOUR assertions from YOUR video clips.
By your repeated failure to answer, I'll accept your admission that you never answered my questions.
And that means that you were blatantly lying in
this post above when you implied ("tfk, have you forgotten a couple of responses ?") that you HAD answered my questions.
And now, from this, your stated intention to never answer those questions, I'll accept that you HAVE no answer.
You're simply hoping this entire issue will go away.
Just like always, femr.
You evade.
You misdirect.
You refuse to answer direct questions.
And then you lie about the whole context of the interaction.
Nothing is new here.
Right. Your incompetent concept of "an answer".
___
Let's see if you two geniuses
can answer a simple question.
Assume that after the collapse begins and the upper block has fallen about 2 stories, there is a Gaussian distribution of mass density in the vertical direction in the crush zone. Highest mass density at some arbitrary height in the compacted debris, and tapering to "average density" of the intact towers above & below this.
With this distribution, there will be zones of free falling mass both above & below the highest density slug. (Higher density than the tower average, but lower than the maximum in the crush zone.)
Assume, in the first case, that the density of debris below the main slug IS NOT sufficient to cause collapse of the floors on which it falls.
What do the laws of conservation of momentum & conservation of energy say will happen to the density distribution over time? How does the debris density distribution evolve?
Now imagine that the density below the main slug IS sufficient to cause collapse of the floors on which it falls.
What do those laws say about the time evolution of the density distribution in this case? How is it different from the previous case?
What happens if you have a different (e.g., triangular, uniform, whatever) density profile?
You wanted questions about collapse propagation, smart guy, you got one.
I'll show, after you attempt to answer, that this question is DIRECTLY pertinent to the question of the likelihood of an "all internal ROOSD'.
