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Originally posted by Seymour Butz
2-again, it gets back to a sealed environment of a fuel tank vs a nonsealed shaft. If it was gasoline... sure, a natural FAE is VERY likely to have happened, due to gas' volatility. But I've been around diesel all my life, and it's virtually impossible to get an explosion unless it's aerosolized in a semi "open", environment, like I'd imagine how it was in the shafts. Inside a fuel tank.... I could see it happening. I'd imagine jet fuel would be similar. Sorry, but I just don't see it happening, but you're not prevented by me from examining it further if you wish.
The amount of fuel vapor in the air above a fuel can never be greater than the saturation value. Of course, it takes time to saturate the air with fuel vapor, so the actual percentage of fuel vapor may be consid- erably below the saturation point, especially if the fuel container is open to air circulation.
JP-5 fuel does not give off enough vapor to be explosive until it is heated considerably above 100°F. However, if the JP-5 fuel is contaminated with even a small amount of gasoline or, more likely, JP-4, the amount of vapor given off increases to the point where it is in the flammable range at a much lower tempera- ture. At room temperatures, 0.1 percent gasoline or JP-4 in JP-5 results in a fuel that is unsafe to store aboard ship since it fails the flash point requirement for unprotected storage.
Because of the range of its vapor pressure, grade JP-4 forms explosive vapors from minus 10°F to plus 80°F, its normal storage and handling temperatures. This means that the space above the liquid almost always contains an explosive mixture.
3- I might be wrong, but it looks like you're comparing the granite to just 1 support. There would be several, right? Perhaps 8 or even greater? Any clue what size they were - 4'x 4' x 1" maybe? How heavy is that? Would just 2 such supports hold up that weight, or would there need to be more on the botom and/or thicker steel on the bottom to hold it without bending? Is comparing tensile strength of the 2 the proper way to determine the solution to this problem?
Originally posted by Griff
1-Now, I'm done arguing this point because I feel that it is possible and until you can show me the impossibility of it happening, and not just the improbability of it happening, I will continue to believe so.
2-Tensile strength is the weaker between the two (compression and tension). Therefore we usually deal in the lower value as Ultimate Strength.
Originally posted by Seymour Butz
1- that's for fuel storage though Griff - in some sort of tank, iow. Believe what you want though.
2- ok. So what about the question regarding how many supports?
Originally posted by Griff
Drawings, details, and specifications would come in handy. Anything else is just supposition and not really worth it IMO.
Originally posted by Seymour Butz
So then without drawings, details, and specifications, your claim that the supports would break first is not really worth anything, IYO.
Gotcha...
The same can be said about your belief that there could have been a natural FAE then, Without an in-depth, detailed analysis of how it could have happened, then that's not worth anything either.
Why do I waste my time, when I know that I won't get any answers....
Originally posted by Griff
Why are you looking to me for answers?
Originally posted by Seymour Butz
Again, it's the scientific method. You have a decent theory. Now, you should look into disproving it, but as afr as I can tell, you have no interest in doing that. Rather, it seems like speculating is all you've got the time for.
Originally posted by Griff
Which goes back to my main point all along. If we had access to the documentation needed, we wouldn't have to speculate.
Originally posted by exponent
Where is the evidence that was promised?
The images and diagrams above show only the proposed velocity of various perimeter sections, using values which don't seem extreme by any measure.
If indeed explosives were used, why is it that the heavier sections of debris travelled roughly the same distance as the lighter sections (excluding of course debris so light it can be suspended in air). Explosives detonate at extremely high speeds and accelerate lighter debris to a much higher velocity.
On top of this, how did these explosives make no sound at all? There are videos of the collapse of both towers and we don't hear any of these massive booms that would be expected. Gravy's video clearly shows how loud even a few lbs of explosives are, and you're asking us to believe that hundreds if not thousands of lbs were used in order to produce this effect, but they made no distinguishable noise?
I look forward to your response.
Originally posted by exponent
Where is the evidence that was promised?
The images and diagrams above show only the proposed velocity of various perimeter sections, using values which don't seem extreme by any measure.
If indeed explosives were used, why is it that the heavier sections of debris travelled roughly the same distance as the lighter sections (excluding of course debris so light it can be suspended in air). Explosives detonate at extremely high speeds and accelerate lighter debris to a much higher velocity.
On top of this, how did these explosives make no sound at all? There are videos of the collapse of both towers and we don't hear any of these massive booms that would be expected. Gravy's video clearly shows how loud even a few lbs of explosives are, and you're asking us to believe that hundreds if not thousands of lbs were used in order to produce this effect, but they made no distinguishable noise?
I look forward to your response.
Originally posted by GenRadek
Ah I see, so explosives were used in the basement then right? And here is the multi-million dollar question, for what serious purpose?
After all, everything needs a purpose because if not, then what was the point?
A jet fuel caused explosion would be the answer as survivors from the basement and ground floor all recall a large blast from the elevators with fireball and an overpowering smell of jet fuel.
...What the gentlemen all described was destruction and damage done from the fuel spill and explosion from the impact above. And the debris covered up your press and there you go. I don't think they expected for you to take it literally when they said, "everything was just gone". Evaporated, disappeared?....
Originally posted by ANOK
1-I'm not in a position to answer all the why's.
2-Jet fuel does not explode, that has already been covered, jet fuel when ignited causes a deflagration. A sudden and hot burn, not an explosion.
3-No explosive force to damage, or bury in rubble, a 50 ton press weighing 500lbs.
4-Sorry but you're just guessing, and then in your arrogance you believe you must be right. Again jet fuel, NO EXPLOSION.
5-So why didn't they say that everything was covered in debris then?
6-Sounds to me like they were surprised that the press disappeared, not just got covered in debris. Debris would have been the first thing they saw, thus the first comment they would have made.
7-You really are just pulling at straws, and your biased view doesn't allow you to think logically about these events.
Y
Originally posted by GenRadek
When the jetfuel poured down the elevator shafts (and incinerated some unfortunate riders inside), and blew the doors off the elevators, and caused a fireball in the basement (from the shaft NOT a random room), I wonder how can an explosive do all that and create a smell of jetfuel everywhere? The fumes igniting from the jetfuel as it poured down would have been just as explosive. There has been a report on just how jetfuel fumes are explosive and what danger they can be to aircraft. I'm surprised you didnt know that. Jet fuel will explode when its already been turned into a mist, or its vapors catch fire. And that makes it explosive, enough to destroy an aircraft, or dislodge a large door and knock granite tile from the walls.
www.tc.faa.gov...
Plus I wonder why when a plane crashes we see a large fireball go up into the sky if jetfuel or its vapor is not explosive, or how FABs do what they do best. When a plane impacts a building we saw a large fireball. There were many reports of jet fuel pouring down the shafts and covering some people in it, including witnessing fireballs going down the shafts. Explosives do not cause people to catch fire, nor do they burn people up inside elevators.
Originally posted by Seymour Butz
Well, GR's wrong about that. It was a deflagration in the shafts. A low overpressure, low speed event should be perfectly capable of blowing out doors, panels, drywall, etc. My calc on the fire door show that. The same should apply for other flat surfaces - lotsa area to absorb the (slow speed) impulse.
If it was a high velocity explosion, the people that got burned also would have died from overpressure.
But really, it's all about degrees of velocity, isn't it? Who's to say exactly how well aerosolized the fuel was? You'd at least agree that the better aerosolized, the faster the combustion - and if it's fine enough, velocities might approach explosive velocities? This is what a real FAE is engineered to do.
People surviving the event suggests that is was deflagrations.
Originally posted by Griff
Do these other flat surfaces include wall sections?
Originally posted by GenRadek
When the jetfuel poured down the elevator shafts (and incinerated some unfortunate riders inside), and blew the doors off the elevators, and caused a fireball in the basement (from the shaft NOT a random room)
There were many reports of jet fuel pouring down the shafts and covering some people in it, including witnessing fireballs going down the shafts. Explosives do not cause people to catch fire, nor do they burn people up inside elevators.