thewholesoul
Graduate Poster
- Joined
- Dec 12, 2007
- Messages
- 1,201
It's interesting how you have deduced the entire gist of NIST's explanation of the collapse down to a single sentence. However once again, as you have done so repeatedly you have vastly over simplified the explanation."Then the collapse ensued" is not an explanation to explain the collapse,
I know, that is why i said “first we have the claim: global collapse then ensued”. A claim is not the same thing as an explanation.
The only reason why this seems to be a fallacy to you seems to be your nagging lack of comprehension as to how 1/5 of a tower destroys 4/5, or (bolded):
"test how a sudden, symetrical, freefalling global collapse can occur from the gravity collapse of 1/10th of the upper structure"
It is only nagging because noone can answer it by providing an example! You may have the most convincing theoretical explanation but I want some beef. There is nowhere in archecture, and no experiments that prove how 1/10 th of a structure “crushes” approximately 8/10ths of the same structure below. If there was you would have cited one already.
Think about it, if you had two trains, one four times longer than the other and crashed the smaller train into the rear of the longer train. Of course the smaller train will be crushed upon impact of course the smaller train will slow down upon impact as opposed to accelerating and finally it will not crush all the way through the longer train, even at top speed. Can you find even one analogy in the natural world?
It just seems absurd to me that 1/5TH when dropped on 4/5th of the same object/structure will NOT get slowed down – but in fact accelerate – and yet at the same time “crush and pulverize” the larger heavier portion by gravity alone!!
I can only assume that you're calling this an incomplete explanation by the fact that they do not detail how the pancaking progressed the collapse (Is this correct?) as opposed to them saying that the floor necessarily pancaked following the collapse initiation.
The fact NIST not explain how the pancaking progressed is yet another reason why their explanation was incomplete. But where were the pancakes Grizzly? Does NIST subscribe to the ‘pancake hypothesis’ is so then quote me where they say so. The towers were 110 stories high how many stories was the rubble pile? How was it pancaking and pulverizing at the same time? and have you any examples of this process in other structural failures and/or in the natural world?
But yes their explanation is incomplete for numerous reasons. This fact was point out in the Journal of Civil Engineering.
I provided samples in Post #1101 which shows the exposed core structures of both towers after the perimeter walls and floors yielded and collapsed. Perhaps the easiest way I could put this is that the cores suffered a local failure in the impact zones, but did not themselves fail (farther from the impact zones) until they lost the lateral support structure provided by the external columns and floor structures.
Nice hypothesis but i would imagine very difficult to prove. Preplanted explosives is also a nice hypothesis but less difficult to prove.
This is where Richard Gages card board box experiment and your assertion of assigning proportional size values to the building sections fails.
To debunk richard gage’s experiment you will have to make your own card board box experiment and demonstrate how the upper section when dropped over other cardboard boxes falls at the same speed through those cardboard boxes as opposed to being dropped over air. Can you do that?
To debunk my claim you will need to provide an example. Not to mention it would be nice if you could device a way to prove your own ‘theoretical’ explanations.
Your objection to the possibility of global collapse starting from a comparatively 'small' section of tower then seems to require that additional failures must be initiated in order to continue the collapse progression. Some articles you have used in the past even speculate that secondary devices were place on multiple floors to accomplish this. With the cores initially surviving the main collapse, does this not hurt your theory?
No. It suggests explosives took out the stronger and heavier outer columns. ONLY the inner weaker columns were left momentarily. Which suggests that explosives were not planted on them. The link i sent you goes into great detail on this matter.
I'm rather curious how you propose they run a truly representative test. Running physical tests at one to one scale to simulate the kind of loads that the structure was bearing on it in addition to the fires, is nearly impossible to accomplish,
I am not proposing anything. i’m simply stating a fact that in the context of the official hypothesis total collapse remains unproven. And arguing that it is “nearly impossible” to test the official explanation is hardly a rebuttal to this fact. So i take it that you concede that in the context of the official hypothesis total collapse remains unproven?
There are both physical, and computer modeling limitations to what they can do to experiment with this. Smashing cinder blocks against each other and using card board box models as your favorite physicist and architects like to use to discredit NIST's findings isn't any way to go about it.
What findings? NIST conducted no tests of their hypothesis post initial collapse. Repeat – no tests. Besides how would you go about it? you concede that the official hypotheis in relation to total collapse remains unproven, you are unable to debunk their cinder blocks and card board box experiments, you are unable to come up with your own experiments, so i dont think you are in a position to down play their efforts no matter how simple they may appear.
If someone finds a proposition – even a hypothetical one – they should pass it on to NIST.Needless to say, I'm sure somebody out there has a reasonable proposition, I'm far from genius level... but there are numerous complications in trying to model every grain of detail in the global collapse of the towers.
Can global collapse of the ratios seen on 911, (12 floors crushing 92 floors) be re-produced on ANY object or structure at near free fall speeds with pulverizing forces? Are we taking about a metaphysical concept here or something that can be proven scientificially?
There is a fundamental matter to keep in mind with this case, The Big Bang theory is based on observations of residual effects in space, such as radiation dispersion, the outward expansion of the universe, among many other things, which are deduced through careful observation and in many other cases mathematics.
The big bang theory predicted that if the universe began with a bang then one would expect to observe the universe expanding. So once this prediction ws validated by observations their theory was also validated. Now what predictions does the official global collapse theory propose? Drop 1/5 of a tube-in-tube structure on the rest of the structure and IT WILL CRUSH IT ALL THE DOWN AT NEAR FREEFALL SPEEED.
The same is true for evolution, scientists observe the adaptations which species have made, and in some case where adaptations are disappearing. For example snakes have adapted in such a fashion that they no longer require extremities (arms and legs), yet certain species of snakes, have remnant features which indicate that they once had limbs. Crude example perhaps, however the theory of evolution is based on such observations.
The theory of evolution makes predictions (e.g. fossils will confirm changes in species over time) and observe these predictions in the natural world. What observations in the natural world validates the global collapse theory?
The atomic theory was proved by testing.Your other examples are generally the same, they have been validated through mathematics and observations.
And the World trade centers have been studied extensively from observations, mathematics, engineering, and computer simulation modeling.
Observations: are to be explained by a working hypothesis, that hypothesis should then be proven. It needs to be proven because observations alone prove nothing. To illustrate when i observe the twin towers 'collapsing' i observe a controlled demolition.
Mathematics: mathematics are by nature theoretical. As published in the Journal of Civil Engineering NIST's calculations of global collapse are incomplete.
engineering: name one engineering experiment that demonstrates a global collapse.
Computer simulation:there is not one computer simulation of the total collapse
peace
