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Originally posted by Seymour Butz
And in your industry, beam has a specific meaning. But in common usage, it can have many meanings.
Originally posted by Griff
Oh dear, you seem to not know the English language or it's definitions.
Originally posted by Griff
I agree mostly. The reason I still argue is not for us, but for those who are new to the whole 9/11 thing.
Originally posted by Seymour Butz
SB:if it had any legs, I'd get behind you, but the fuel/air mix needs to be at a certain ratio for that to happen, and there's no way in a vented situation
Griff:no response
Now, just read my signature para for an explanation why it's gone this way.....
Originally posted by Griff
So, tell me again Butz. What happened in the sub-basements and to the lobby?
Edit: BTW, isn't it you who wants to calculate air velocity in a hermetically sealed environment, but, then when it comes to "proving" me wrong, you want the building to be "ventilated"?
Originally posted by Seymour Butz
1-What was it then, if not deflagrations? Remember that an FAE needs a fairly precise and even fuel distribution to get the fast burn they want. Are you saying this was the case? How could that be true if there was fuel pooled at the bottom of the shafts? This indicates not-so-good distribution, right?
2-more lies. bazant takes into account the air escape. Also, you're making the wrong comparison. You should compare conditions before collapse to fuel tanks.
Originally posted by Seymour Butz
Still nothing?
Look, take the easy way out.
The long floor spans were 60', the short 32'. Average = 46'. So the air had to travel, on average, 46' to exit the building.
46' in .2 second = 230 fps.
230 fps x 60 seconds/minute x 60 minutes/hr = 828,000 feet/hr
828,000 feet/hr/ 5280 ft/mile = 156 mph.......
Note that this excludes 100% of the air in the cores, which I don't necessarily feel should be excluded. if you use just 75' ( 3/4 ), it's 255 mph.
it looks like you should just exclude the whole silent thermobarics idea before you end up as Stundie material......
Originally posted by Griff
1-Is it really that impossible?
2-I wasn't talking about bazant.
“There was nothing there but rubble, “Mike said. “We’re talking about a 50 ton hydraulic press – gone!” The two began yelling for their co-workers, but there was no answer. They saw a perfect line of smoke streaming through the air. “You could stand here,” he said, “and two inches over you couldn’t breathe. We couldn’t see through the smoke so we started screaming.” But there was still no answer.
Originally posted by Seymour Butz
1- 99.99% improbable. Again, consider the situation inside a fuel tank vs in open air. I'll explain it again - there is a range of fuel/air mixture that you need in order to get any kind of burn. Too rich, nothing. Too lean, nothing. And since jet fuel is less volatile than something like gasoline, it's pretty much impossible to get an explosion unless you've got a contained environment - like inside a fuel tank - or with an engineered device - like an actual FAE.
They did know that the explosion had been large enough to send down a
fireball that blew out elevators and windows in the lobby and that conditions
were so dire that some civilians on upper floors were jumping or falling from
the building.
[Walsh:] What else I observed in the lobby was that -- there's basically two areas of elevators. There's elevators off to the left-hand side which are really the express elevators. That would be the elevators that's facing north. Then on the right-hand side there's also elevators that are express elevators, and that would be facing south. In the center of these two elevator shafts would be elevators that go to the lower floors. They were blown off the hinges. That's where the service elevator was also.
[B.C. Congiusta:] Were these elevators that went to the upper floors? They weren't side lobby elevators?
[Walsh:] No, no, I'd say that they went through floors 30 and below.
[B.C. Congiusta:] And they were blown off?
[Walsh:] They were blown off the hinges, and you could see the shafts. The elevators on the extreme north side and the other express elevator on the extreme south side, they looked intact to me from what I could see, the doors anyway.
“There was nothing there but rubble, “Mike said. “We’re talking about a 50 ton hydraulic press – gone!” The two began yelling for their co-workers, but there was no answer. They saw a perfect line of smoke streaming through the air. “You could stand here,” he said, “and two inches over you couldn’t breathe. We couldn’t see through the smoke so we started screaming.” But there was still no answer.
The two made their way to the parking garage, but found that it, too, was gone. “There were no walls, there was rubble on the floor, and you can’t see anything,” he said.
They decided to ascend two more levels to the building’s lobby. As they ascended to the B Level, one floor above, they were astonished to see a steel and concrete fire door that weighed about 300 pounds, wrinkled up “like a piece of aluminum foil” and lying on the floor. “They got us again,” Mike told his co-worker, referring to the terrorist attack at the center in 1993. Having been through that bombing, Mike recalled seeing similar things happen to the building’s structure. He was convinced a bomb had gone off in the building.
Rodriguez: I worked in the building for 20 years. I was the person in charge of all the stairwells in the building. I had the only master key that opened all the doors in the building, and I went floor by floor opening the doors.
On 9/11, on 8:46, I was at the basement of the North Tower, the first tower to be impacted, the second one to fall. While I was there, a second or two before the plane hit, there was a huge explosion on the sublevel B2 to sublevel B3.
SUMMARY
On September 11, 2001, the seismic stations grouped around New York City recorded seismic events from the WTC site, two of which occurred immediately prior to the aircraft impacts upon the Twin Towers. Because these seismic events preceded the collisions, it is clear they were not associated with the impacts and must therefore be associated with some other occurrence.
Originally posted by ANOK
“There was nothing there but rubble, “Mike said. “We’re talking about a 50 ton hydraulic press – gone!” The two began yelling for their co-workers, but there was no answer. They saw a perfect line of smoke streaming through the air. “You could stand here,” he said, “and two inches over you couldn’t breathe. We couldn’t see through the smoke so we started screaming.” But there was still no answer.
xenonpup.startlogic.com...
Th
Originally posted by Griff
Also, even if we want to call it "deflagrations" throughout the building, going by the damage that the initial deflagration achieved in the basements and lobby, I feel that is enough to weaken a structure. So, can we agree and call them "deflagrations with force behind them"?
But, same a you, I tire of this argument also. So, until you can prove that it is impossible, it is still a probable scenario that hasn't been researched as far as I'm aware.
Originally posted by Griff
pinion.
Isn't it comical how Butz has now poo-pooed the idea that the jet fuel caused this damage?
Originally posted by Seymour Butz
A fifty ton press doesn't weigh fifty tons. It's a press that exerts 50 ton of pressure. Shipping weight 563 lbs.
Originally posted by Seymour Butz
1- sure, if you wanna say that breaking drywall and marble would damage the structural steel... and ignore that the elevators were responsible for some of that..... then be my guest.