jimmoyer said:Good question.
But it means NOTHING if it just hangs in the air posing as some innuendo unanswered.
ANSWER : a question begs for an answer, not a shrug off 'as some innuendo unanswered'. That's a bogus response to a pertinent question.
moghrabi said:Thank you for your consideration. While you are at it, make sense of what you are writing.
jimmoyer said:So ?
All you find are questions.
No answers.
So you think the question parades as some sort of truth for you ?
Anyone can asks questions.
Anyone can have ideas.
----------------------------------------------------------------jimmoyer said:Some questions are dumb --- the kind that pose as innuendo and substitute for thought, parading as proof of some malignant evil.
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Answer - I love it when you trash talk me. The thing is, that I did not pose a question. Please do not use words you do not understand. Like 'innuendo'.
Isn't it odd how you slough off widely held suspicion without actually considering the grounds for those suspicions. Kind of like the acceptence of the 'single bullet' theory in KFKs assassination, despite its physical impossibility. Because otherwise there would be no escaping the fact that it was a conspiracy with multiple shootists supported by deep financial pockets.
quote="jimmoyer"]
I think ineptitude trumps most theories.
jimmoyer said:to put others' prejudice through rigorous challenge
jimmoyer said:What don't you understand ?
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#juan said:jimmoyer, MMMike.
Rather than throwing around insults and innuendo, why don't you two experts tell us why the mechanical penthouse collapsed before the rest of the building even began to fall. The floor of that penthouse would have been particularely strong because it had to support the weight of boilers, pumps, chillers, cooling towers, etc. I'm guessing that WTC 7 was built 40 odd years ago and it would have had a huge safety factor built into the structural design. Greater than it would have if it were built today. I have enough experience to know that causing a 47 story bldg to fall into it's own footprint is the result of the placing and sequential detonation of explosives with careful planning and knowledge of the particular structure of a given building. The few isolated fires in that building could not have caused the perfect implosion that we saw in the video.
#juan said:jimmoyer, MMMike.
Rather than throwing around insults and innuendo, why don't you two experts tell us why the mechanical penthouse collapsed before the rest of the building even began to fall. The floor of that penthouse would have been particularely strong because it had to support the weight of boilers, pumps, chillers, cooling towers, etc. I'm guessing that WTC 7 was built 40 odd years ago and it would have had a huge safety factor built into the structural design. Greater than it would have if it were built today. I have enough experience to know that causing a 47 story bldg to fall into it's own footprint is the result of the placing and sequential detonation of explosives with careful planning and knowledge of the particular structure of a given building. The few isolated fires in that building could not have caused the perfect implosion that we saw in the video.
THE COLLAPSE
Nearly every large building has a redundant design that allows for loss of one primary structural member, such as a column. However, when multiple members fail, the shifting loads eventually overstress the adjacent members and the collapse occurs like a row of dominoes falling down.
The perimeter tube design of the WTC was highly redundant. It survived the loss of several exterior columns due to aircraft impact, but the ensuing fire led to other steel failures. Many structural engineers believe that the weak points—the limiting factors on design allowables—were the angle clips that held the floor joists between the columns on the perimeter wall and the core structure (see Figure 5). With a 700 Pa floor design allowable, each floor should have been able to support approximately 1,300 t beyond its own weight. The total weight of each tower was about 500,000 t.
As the joists on one or two of the most heavily burned floors gave way and the outer box columns began to bow outward, the floors above them also fell. The floor below (with its 1,300 t design capacity) could not support the roughly 45,000 t of ten floors (or more) above crashing down on these angle clips. This started the domino effect that caused the buildings to collapse within ten seconds, hitting bottom with an estimated speed of 200 km per hour. If it had been free fall, with no restraint, the collapse would have only taken eight seconds and would have impacted at 300 km/h.1 It has been suggested that it was fortunate that the WTC did not tip over onto other buildings surrounding the area. There are several points that should be made. First, the building is not solid; it is 95 percent air and, hence, can implode onto itself. Second, there is no lateral load, even the impact of a speeding aircraft, which is sufficient to move the center of gravity one hundred feet to the side such that it is not within the base footprint of the structure. Third, given the near free-fall collapse, there was insufficient time for portions to attain significant lateral velocity. To summarize all of these points, a 500,000 t structure has too much inertia to fall in any direction other than nearly straight down.
#juan said:MMMike
Both you and jimmoyer have suggested that the people who believe in a conspiracy are not knowledgable or are poorly informed or uneducated or something.
In answer to your earlier little question,"Structural?" No I was a mechanical engineer. I don't consider that a problem. Back in the olden days when I went to college, all engineers learned about "strength of materials", etc, and basic structures.
Now MMMike, answer my question." Why did that penthouse collapse before the rest of the building?"