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Originally posted by seanm
I still see that denial reigns supreme amongst you 9/11 Deniers here. I personally think Valhall should know better than to make a statement, get called on it, then deny, incredibly, what NIST actually said and concluded.
It is perfectly ridiculous for those here to deny that two top sections of WTC 1 and 2, representing 40,000 tons and 110,000 tons neither existed or began to each fall as a single piece of mass, nor possessing any kinetic energy. This is the height of stupidity.
Originally posted by bsbray11
Originally posted by seanm
I still see that denial reigns supreme amongst you 9/11 Deniers here. I personally think Valhall should know better than to make a statement, get called on it, then deny, incredibly, what NIST actually said and concluded.
You wouldn't know what NIST actually concluded. Valhall is more educated than you are on the subject AND she actually read the report.
"The change in potential energy due to the downward movement of
building mass above the buckled columns exceeded the strain energy
that could be absorbed by the structure. Global collapse then ensued."
It is perfectly ridiculous for those here to deny that two top sections of WTC 1 and 2, representing 40,000 tons and 110,000 tons neither existed or began to each fall as a single piece of mass, nor possessing any kinetic energy. This is the height of stupidity.
No, it's a reflection of your own ignorance of basic mechanics.
There is kinetic energy, yes, but you DO NOT calculate it from PE in this case, because there was NO free-fall.
Originally posted by seanm
"The change in potential energy due to the downward movement of
building mass above the buckled columns exceeded the strain energy
that could be absorbed by the structure. Global collapse then ensued."
There didn't need to be "freefall."
Originally posted by bsbray11
Can anyone here with a background in science or engineering explain to me (since I'm oh-so-stupid) why this doesn't look like two bodies impacting each other?
Why doesn't the above look like a simple collision problem, one mass dropped onto another?
Hmm.. It looks like a bunch of deformations, but I'm so stupid, someone explain to me what Sean is trying so hard to teach me about two WTC blocks slamming each other.
Originally posted by snoopy
I challenge you to present your claims there to a panel of engineers.
Having worked on structural steel buildings as a civil engineer in the era when the Twin Towers were designed and constructed, I found some disturbing discrepancies and omissions concerning their collapse on 9/11. ...
The interesting fact is that each of these 110-story Twin Towers fell upon itself in about ten seconds at nearly free-fall speed. This violates Newton’s Law of Conservation of Momentum that would require that as the stationary inertia of each floor is overcome by being hit, the mass (weight) increases and the free-fall speed decreases......William Rice, PE – Registered Professional Civil Engineer who worked on structural steel and concrete buildings in Boston, New York, and Philadelphia. Former Professor at Vermont Technical College where he taught engineering materials, structures lab, and other building related courses.
"I have watched the construction of many large buildings and also have personally witnessed 5 controlled demolitions in KC [Kansas City]. When I saw the towers fall on 9/11 I knew something was wrong and my first instinct was that it was impossible. When I saw [WTC]building 7 fall I knew it was a CD [Controlled Demolition]. Why was there so many video cameras aimed at B7 when it fell if it was unexpected? Some coincidence. I have been studying this subject since it happened. I can find no evidence that any of the official story, even events other than the 3 [WTC] buildings, makes any sense or is even possible."...... Chester W. Gearhart, BS CE, PE (ret) – Retired Civil Engineer for the City of Kansas City, MO.
"By 9/12 I was convinced that there was something 'fishy' about the 'collapse' of the WTC. I learned about progressive collapse from my engineering professors at Columbia, and I found it hard to imagine that the Twin Towers could have failed in that way. They were specifically designed to resist impact and load applied by the collision of a Boeing 707 jet. The buildings appeared to have been destroyed by an engineered demolition. When I articulated my suspicions, however, I was met with derision. I have continued, however, in my conviction that the buildings were intentionally destroyed."......Nelson L. Johnson, M.Arch, PE – Licensed Architect and Licensed Professional Civil Engineer, State of California
Originally posted by bsbray11
Originally posted by seanm
"The change in potential energy due to the downward movement of
building mass above the buckled columns exceeded the strain energy
that could be absorbed by the structure. Global collapse then ensued."
Why did you post this? You don't even know what it means.
Are you trying to "teach" me something I understand, and you do not, just by posting someone else's text? You sure do have a lot of blind faith in a bunch of people you don't know.
There didn't need to be "freefall."
There does to convert PE straight to KE. NIST simply stated that the PE changed in the quote above. So what? It would have changed no matter how or why the building moved. Hey -- when are you going to stop faking knowing what you're talking about?
They also state that this change was great enough (whatever caused this change) to propagate runaway failures, but NIST never studied the global collapse and just assumed it. So you can take their word for it, but it's just that, and they never gave anything solid for it.
It's amazing how I can say this, too, and you can't refute it, but yet you ignore it and never consider it. NIST never provided evidence. Try to give me NIST's evidence for their global collapse scenario. Just stating that it exists doesn't cut it.
Originally posted by eyewitness86
You may be beyond educating if you cannot grasp something as simple as this: The building was connected at MANY points by bolted and welded steel frames and supports..OK?
Originally posted by snoopy
reply to post by etshrtslr
My real beef isn't in conspiracy theories, it's in groups such as ae911,P4T, etc who try to mislead people and try to use numbers and credentials to make up for lack of evidence or research.
Originally posted by eyewitness86
Snoop old boy, when you get to the stage of trying to denigrate 200 professionals and make assumptions totally unsupported by any evidence, like only 3 or 4 being licenced, etc. that makes people want to put you in a category like ' ignore '.
You really believe that all those engineers and architects are madhatters and insane and considered renegades in their fields? Are we to believe YOU instead of THEM? Unreal..absolutely unreal.. Some desperation is so pathetic that it almost inspires pity...except for the brazenness of the assertions made and the lack of substance therein.
Originally posted by seanm
I repeat what you deny: The building fell down go boom for reasons you can't refute.
Actually, as you WELL know
but need to deny
the energy was more than sufficient to ensure global collapse without modelling the collapse itself.
Your epistemic arrogance is truly a sight to behold.
Originally posted by snoopy
And look at your claim as well. You make the argument "are you saying that 200 experts are wrong?". Well, you are saying that 10s of thousands of experts are wrong.
Originally posted by bsbray11
I love it when people say this.
This kind of reasoning is so completely ignorant, literally, snoopy has no idea what tens of thousands of engineers think, he just assumes what they think. Basically, if snoopy hasn't heard of you before, and you're an engineer, then you automatically think like he does. That's his reasoning. I hate to keep mentioning Val and Griff, but I guess they would be lumped into that mass of ten thousands too, since neither of them have taken the time out to write a paper just for our dear Mr. Snoopy.
Realistically 10's of 1000's of engineers wouldn't know what the NIST report was if you asked them. Most of them would probably give you different answers as to why exactly the buildings collapsed. Most of them probably have not even heard of WTC7.
I don't mean to pick, but really -- which scenario is more likely?