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Originally posted by bsbray11
Whatever image you're talking about may show two of them, but for the record many more unique events were captured on photos and in video. Just saying.
Oh man, this is a laugh. Can I see how you figured this out?
"The core" consists of 47 different columns. For all we know, each column could have had its own device specifically for destroying it. Say the ones along the outer perimeter happened to have charges (or whatever type of device) directed towards the perimeter of the building. That's only one example of a countless number of scenarios I could think of demonstrating how your assumption would be wrong. In fact, it would have to be one tremendous bomb explosion to come out all windows from within the core at once. That's about the only way what your saying would happen. And that would be pretty damned obvious to anyone watching, wouldn't you think?
This is why compressed air coming down shafts in the core would not blow out of the perimeter like that. Explosives have much more velocity and force to them. They would be responsible for this sooner than air compressed by falling debris, ie not compressed at all.
Not all explosive devices have the same detonation velocities and shock wave envelopes. C4 detonates quick and makes a sharp "crack," while thermobarics can go off in stages and make low booms. Think in terms of physics, not the different kinds of explosives you know of, which is certainly going to be much more limited than a military experts, for example.
Who said they were coming from inside the core? How could you tell? Maybe they're coming from the outermost columns of the core towards the perimeter. And how do you even know these devices wouldn't be powerful enough to cause these even then, since we still have no idea what they are?
Also notice the core is just 4 walls when viewed from outside, basically. Four walls with openings for the hallways that snake between the elevator shafts, bathrooms, offices, etc. If explosions were rocking the core, another possibility is that they would only be able to "vent" towards the perimeter through those hallway openings. They would still have to be very fast and have a lot of force to travel all the way to the windows, though.
Originally posted by fleabit
why could it NOT be air pressure?
Could it have this effect on floors 40 floors down? I don't see why not.
But I've seen many professionals state that this was exactly what it was.
Originally posted by GenRadek
Originally posted by bsbray11
Whatever image you're talking about may show two of them, but for the record many more unique events were captured on photos and in video. Just saying.
I'll bet there were. Like orbs, tiny UAVs, etc.
Originally posted by fleabit
The building was not airtight? Do you realize they make skyscrapers as airtight as possible, because of the difference in air pressure within as compared to outside?
Each floor was an acre in size. It is surmised that 95% of the building inside consists of air. Air will take the path of least resistance.
As the floors pancaked, the least resistance was down the core, and out to each floor. The more floors pancakes, the greater this pressure.
Many survivors specifically talked about the great air pressure on their backs as they were doing down the stairs.
"this, huge incredible force of wind and debris actually came UP the stairs, knocked my helmet off, knocked me to the ground"
By the way, if you look at slow motion videos of those windows blowing out, please note how they blow out, and then grow in strength. That is, more debris comes flying out in a progression until the collapse caught up with it. Explosions do not work like this.
posted by fleabit
Many survivors specifically talked about the great air pressure on their backs as they were doing down the stairs. One guy saw a fireman get pushed right by him do to the air pressure.
posted by fleabit
As the floors pancaked, the least resistance was down the core, and out to each floor. The more floors pancakes, the greater this pressure.
posted by bsbray11
And now you start making stuff up. I'll ask you to prove this, because it makes no sense to me that the air would seek out the tiny shafts in the core before just going out a window or other gaping hole in the falling structure, especially when all the air from the building below is still compressed and would be trying to go UP the building, while the open atmosphere is right there. And btw in physics you know the atmospheric pressure would be "trying" to enter the building and decompress it just as much as the compressed air inside would be trying to get out.
posted by fleabit
Many survivors specifically talked about the great air pressure on their backs as they were doing down the stairs.
posted by bsbray11
You mean like this?:
"this, huge incredible force of wind and debris actually came UP the stairs, knocked my helmet off, knocked me to the ground"
www.gnn.tv...
According to you that pressure should be moving down. On the contrary, it is going up the building, because all the air in the lower part of the building is trying to go up and equalize with atmospheric pressure where the building is being destroyed floor by floor.
Originally posted by GenRadek
What you showed in the pictures were the jets of compressed air (and the effects of machinery falling down elevator shafts ahead of the collapse, impacting the floors) that have been shown in video to increase in speed.
Originally posted by GenRadek
SPreston, no offense, but your lack of scientific knowledge is actually more amazing. That and the basic physics of explosives.