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Originally posted by ULTIMA1
Originally posted by MikeVet
1- yes, it's true that the buildings witstood the impacts. that is plainly obvious since we all saw it. but would agree that they weakened the load capacity of the buildings?
2- yes, it's true that the fires, by themselves, didn't burn hot enough or long enough to cause the collapse. but don't you agree that statement implies that fires can weaken steel? it must be true because your statement implies that there is a point where it COULD cause a collapse on its own, if left long enough.
3- so if you choose to deny ignorance, you must agree that when you combine the 2 weakening inputs, there MUST be a point whereby the effect of the 2 would bring down the buildings. that point remains somewhat undefined
1. Not according to NIST, the impacts did not cause a weakened load capacity.
wtc.nist.gov...
The tower maintained its stability with the removal of columns in the
exterior walls and core columns representative of aircraft impact and
also after losing columns in the south wall due to fire effects with some
reserve capacity left, indicating that additional weakening or loss of
other structural members is needed to collapse the tower.
2. As stated the fires did not burn long enough or get hot enough to cause the steel to weaken enough for a complete collaspe.
wtc.nist.gov...
The pre-collapse photographic analysis showed that 16 recovered exterior panels were exposed to fire prior to collapse of WTC 1. None of the nine recovered panels from within the fire floors of WTC 2 were observed to have been directly exposed.
NIST developed a method to characterize maximum temperatures experienced by steel members using observations of paint cracking due to thermal expansion. The method can only probe the temperature reached; it cannot distinguish between pre- and post-collapse exposure. More than 170 areas were examined on the perimeter column panels ...
Only three locations had evidence that the steel reached temperatures above 250 °C.
These areas were:
• WTC 1, east face, floor 98, column 210, inner web,
• WTC 1, east face, floor 92, column 236, inner web,
• WTC 1, north face, floor 98, column 143, floor truss connector
Other forensic evidence indicates that the last example probably occurred in the debris pile after collapse. Annealing studies on recovered steels established the set of time and temperature conditions necessary to alter the steel microstructure. Based on the pre-collapse photographic evidence, the microstructures of steels known to have been exposed to fire were characterized. These microstructures show no evidence of exposure to temperatures above 600 °C for any significant time.
Similar results, i.e., limited exposure if any above 250 °C, were found for two core columns from the fire-affected floors of the towers.
3. So as stated the impacts and fires were not enough to cause the collapse.
Please let me know if you need any more evidence i have more.
[edit on 6-1-2008 by ULTIMA1]
Originally posted by Swampfox46_1999
So Griff (and others) it would be safe to assume that you do not believe in evolution then?
(I do have a point related to the discussion, provided someone answers the above)
you forgot to mention holocaust denial, the earth is 6000 yrs. old and little green men.
Originally posted by MikeVet
6- NIST isn't tasked with the responsibility of disproving CT theories. do it within the CT community
Originally posted by Swampfox46_1999
So Griff (and others) it would be safe to assume that you do not believe in evolution then?
(I do have a point related to the discussion, provided someone answers the above)
A hypothesis (from Greek ὑπόθεσις) consists either of a suggested explanation for a phenomenon or of a reasoned proposal suggesting a possible correlation between multiple phenomena.
Even though the words "hypothesis" and "theory" are often used synonymously in common and informal usage, a scientific hypothesis is not the same as a scientific theory.
In science, a theory is a mathematical or logical explanation, or a testable model of the manner of interaction of a set of natural phenomena, capable of predicting future occurrences or observations of the same kind, and capable of being tested through experiment or otherwise falsified through empirical observation.
A scientific law, is a law-like statement that generalizes across a set of conditions. To be accorded law-like status a wide variety of these conditions should be known, i.e. the law has a well documented history of successful replication and extension to new conditions. Ideally boundary conditions, where the law fails, should also be known.
Originally posted by MikeVet
you have demonstrated a clear predeliction for trolling - cherry picking evidence,
Originally posted by OrionStars
NIST personnel, nor anyone else, had any way of actually knowing how many windows were broken. That is self-evident, from what we know was actually occurring on 9/11 that we could see happening, and not what we could not see happening.
Originally posted by OrionStars The eye can be great deceivers in eyewitness testimony, as any police officer or court can tell anyone as evidenced by testimony of eyewitnesses.
Originally posted by Griff
[
Your whole previous post can be summed up while I answer this point.
First, this is NOT a conspiracy theory. Unless you are including FEMA in the CT crowd now?
Second, NIST IS taxed with finding out what happened to the towers and 7 on 9/11. This would include the mysterious melting and corroding of WTC steel. Again, it's NOT a CT. So, yes, they are taxed with finding the answer to that mystery. NOT just Greening's coulda/shoulda/woulda.
Now, this is the last time I will say these things to you because (no offense) you are starting to sound like a troll.
NIST is taxed with finding this out for sure. They haven't bothered to figure it out. Even though gypsum drywall is used everyday in the construction of steel buildings. Now wouldn't it be of interest to determine how much of a hazard gypsum is to steel if it has the potential to melt and corrode steel?
What has evolution to do with the topic of this discussion? The poster only made a comment of opinion. I do not believe he meant to take the discussion into evolution.