Specifying the amount of concrete in the towers is a silly irrelevance that only matters to one, lone internet denizen that cannot even explain why he thinks that it is important. (And failing to publish the irrelevant information does not mean that NIST does not have it, only that it is irrelevant.)
The NIST report very explicitly explains the collapse, so that claim simply makes no sense. It is rather like claiming that Izaak Walton’s The Compleat Angler does not explain fishing.
That you do not have the chops to understand the explanation does not indicate that the explanation was not provided.
It’s a replica of a vehicle in miniature, (such as a plane or a ship), usually put together by hobbyists as young as six, but that’s not important right now.
This is your problem right there. You put more weight on the opinion of some random stranger than you give scientists in the field. The other day a random stranger told me that drops of leek juice would cure an ear ache. I’ll stick to the medical opinions, thanks.
Surely, one so wise in the ways of science as psikeyhackr couldn’t have made a simple measuring mistake like that, right?
Then again, where was Craig Breedlove on 9/11? Has it been conclusively proven that he wasn’t involved? After all, those towers apparently came down fast. And who knows speed more than the fastest human alive*?
*For various definitions of “fastest human”. I’m trying to build a CT here, stop bothering me with exceptions!
Who needs a model to put together a basic, non-conspiracy idea of what happened? I am not a structural engineer but I have some metallurgical background and know that metal + heat = softer metal long before it melts. I have also done construction estimating and have an eyeball guesstimate of how much concrete and steel made up each floor: a shitload. That’s a technical term you non-technical types might not understand; it’s not close enough to write a PO, but it’s close enough for government work and more than enough to keep the towers erect for several decades, barring extreme circumstances. Whatever the exact amount, multiplied by several floors it was enough to initiate the collapse. And do you know how I know that? Because I saw it collapse AND was not surprised, based on the above.
psikeyhackr needs to quit being a nuisance on multiple message boards and learn that total accuracy is not needed to understand most of the universe. Most of it can be worked out with a little knowledge and a Gedankenexperiment.
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Who needs a model to put together a basic, non-conspiracy idea of what happened? I am not a structural engineer but I have some metallurgical background and know that metal + heat = softer metal long before it melts. I have also done construction estimating and have an eyeball guesstimate of how much concrete and steel made up each floor: a shitload. That’s a technical term you non-technical types might not understand; it’s not close enough to write a PO, but it’s close enough for government work and more than enough to keep the towers erect for several decades, barring extreme circumstances. Whatever the exact amount, multiplied by several floors it was enough to initiate the collapse. And do you know how I know that? Because I saw it collapse AND was not surprised, based on the above.
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Add to that the fact that a bloody big air plane flying at several hundred miles per hour crashed into the building as well, removing much of the fire proofing that would normally protect the structural supports from fire, and also coincidentally taking out the fire suppression system and dumping a fuck ton of aviation fuel in the mix (fuck ton also being a technical term). Yeah, you don’t have to be an engineer to understand this stuff. IMHO, you have to be willfully ignorant to NOT understand, especially when it’s explained over and over again (times several hundred/thousand). It’s Occam’s Razor, something that Truthers obviously weren’t taught. Perhaps Demon Haunted World should be required reading for any Truther before they are allowed to post in threads like this.
Not to mention that the amount of pulverization seen that day would have required the equivalent of “at least 158 tons of TNT per tower installed into many small holes drilled into each concrete floor slab and core wall.” Zdenek P. Bazant, 21 June 2007.
Them, but my first encounter with the phenomenon was as a kid, when a carpenter explained that the steel I beam holding up our main floor would be a liability in a fire compared with a similarly-sized solid wood beam because the steel beam would soften all the way through relatively quickly, while the wood beam would retain the full strength of the remaining unburned wood.
ETA: But since he was a carpenter he was probably in the pocket of Big Wood. What I’ve learned is that there is a conspiracy behind everything.
I am talking about a DYNAMIC MODEL showing how the collapse could happen. Not just something to look at. The NIST has never explained the progressive collapse.
Due to the Conservation of Momentum that can NEVER BE DONE without accurate distribution of mass data. The NIST never even specifies the total amount of concrete in the towers though sources from before 9/11 say there were 425,000 cubic yards. That would be more than 300,000 tons per tower.
Actually I would guesstimate it as a metric fuck ton.
What the absolute values are frankly immaterial but if you want to express it mathematically you would have:
X = weight of building material in each floor
Y = weight of furniture, and equipment on each floor
Z = weight of people
N = numbers of floors above the point you are calculating
S = safety percentage ( so the building won’t fall down if they hire 1 too many executives on the 98th floor
So you equation is:
XN+YN+ZN= how much weight each the building supports at any given floor.
Add SN to that number and you have how much weight a given floor is capable of supporting or in other words: XN+YN+ZN+SN=Total max design load.
Now you have a 767 crash into the side of the building tearing open the curtain wall which doesn’t really lower the weight that any one floor must support, but does lower the ability of the building to support weight.
Now we have a huge roaring fire. The steel (minus the fireproofing) starts to lose it strength further lowering the building ability to support weight. This continues until the weight above the failure floor is greater than what the weakened building can support.
This really isn’t rocket surgery.
