Seffen's "Ordinary Explanation"

Oh, I do so love how Winter Patriot is vigilantly dogging and debuking Dr. [sic?] Seffen’s attempt to paint the 9/11 WTC collapse as “a very ordinary thing to happen”!!!
Rebuffed! Conspiracy Theory Destroyed By Unsung Internet Heroes
Thursday, November 15, 2007
Defenders of Cambridge's Dr. Keith Seffen [photo] and his paper, "Progressive Collapse of the World Trade Centre: a Simple Analysis", are popping up everywhere. Well, not everywhere, but they're popping up in a few places. And with one reasoned rational argument after another, they have taken me apart.
On Sunday, I posted a review of Dr. Seffen's paper , and based on the reactions that piece received, I thought I had done a fairly good job of treating it calmly and rationally. But it turns out that I have been deceived by yes-men and weak-kneed courtiers. The review was shoddy, full of holes, politically motivated and shameful in the extreme.
…R. Steve Walz explained what was wrong with my analysis:

Dr. Seffen assumes that a constant force, supplied by the suddenly unsupported top of the tower, was pressing down, crushing each story, one after another, all the way down to the ground. An elementary understanding of physics would tell you that this is not possible, unless the top section of the building -- the part doing the crushing -- were made of much denser material than the bottom section -- the material being crushed.

So Dr. Seffen and I were both wrong. The total force increases! And it's not even limited by air resistance! I've always thought some truthers were off in fantasy land with claims that the towers collapsed "faster than free-fall speed". How could that happen, I wondered, unless a force were pushing down on the falling concrete?
…It was an internal explosion. It wasn't limited by air resistance. And it reached speeds well in excess of terminal velocity.
…In the case of the WTC, the material being crushed was nearly identical to the material doing the crushing. In fact, the structural steel was thicker at the bottom than the top, in which light Seffen's model appears even less appropriate to the event (not that this makes very much difference in the long run).
…And therefore all the debris that went whooshing down the streets ... it was actually still pushing down on the towers at the very same time!
This is a very detailed post and it’s essential to read it yourself. I will provide just one more tidbit to wet your appetite:
…The collapse generated the heat that melted the metal that flowed out of the building just before it collapsed. It makes perfect sense if you repeat it often enough.
http://winterpatriot.blogspot.com/search?q=9%2F11+%2B+WTC+collapse

Translator Needed: Science Gobbly-Gook to English

Winter Patriot follows up on Keith Seffer's study of the collapse of the twin towers collapse (what about WT7?). Maybe Mr. Seffer wants us to blame the "collapse" on balloons!
In a recent series of articles I mentioned this discrepancy and documented some of the efforts made by myself and others to obtain further information on this story -- all of which had been ignored.
A few people who read those stories had academic credentials and were able to provoke a response where humble bloggers had failed: the questions they sent to Ross Corotis, the editor of the JEM, were answered, and yesterday I was able to report that Keith Seffen's paper is scheduled to be published in the February, 2008 issue of the Journal of Engineering Mechanics.
If that was good news, this is even better: one of the other people who read those stories had even more impressive credentials, and he went digging in a different place. And you'll never guess what he managed to unearth ... or will you?
If you can read the abstract, maybe you can comprehend the report. Any translations are appreciated.
Abstract
The collapse behaviour of the World Trade Centre (WTC) towers is considered formally as a propagating instability phenomenon. The application of associated concepts enables the residual capacities of both towers after the onset of collapse to be formally estimated. This information is combined into a simplified variable-mass collapse model of the overall dynamical behaviour. The resulting, non-linear governing equation of motion can be solved in closed form, to yield compact information about the overall collapse conditions.
…A frivolous but useful analogue is the inflation of a rubber party balloon: personal experience suggests that a higher lung pressure is required to motivate inflation than that needed to sustain it; and that the latter pressure is approximately constant and steady for a long, uniform balloon, irrespective of the inflated volume before becoming fully inflated.
Ok, who put the balloons in the WTC? Previous post, November 6, 2007, Scientists Promote 9/11 Propaganda
http://winterpatriot.blogspot.com/2007/11/keith-seffens-progressive-collapse-of.html

Scientists Promote 9/11 Propaganda

This great investigative report from Winter Patriot exposes an attempt to make the 9/11 Twin Towers collapse seem inevitable. Following are email addresses of the perpetrator of these 9/11 conspiracy myths, who may enjoy your comments. ; - )
Where's The Paper? Did The BBC And A Cambridge Don Commit Fraud To Cover Up Mass Murder?
Tuesday, November 06, 2007
Dr. Seffen, the BBC said, had constructed a mathematical model of the twin towers of the World Trade Center which showed that once the collapse of the twin towers began, it was destined to be rapid and total. [and ] …a "very ordinary thing to happen".
The BBC also reported that Dr. Seffen's findings are published in the Journal of Engineering Mechanics.
…I also began to suspect the worst: not only that the paper hadn't been published, and was not going to be published, but that perhaps the paper hadn't even been written. After all, unless you can "prove" that zero "equals" infinity, it would be very difficult to construct the "proof" described by the Cambridge press release.
…I'm sure Keith Seffen would appreciate a few emails and phone calls inquiring as to when and whether his paper will be available for peer review. His email address, as noted on his personal web page, is kas14@cam.ac.uk. For those who prefer to phone him, the numbers are +44 (0) 1223 7 64137. To send him a fax, try +44 (0) 1223 3 32662.
It's a classic propaganda technique: tell the lie once and then never mention it again. Sometimes in politics this approach works well. But in science, if someone ignores relevant questions, the obvious implication is that he has no good answers.
In other words, in this case, we seem to be looking at accessories-after-the-fact.
Ross Corotis, email: corotis@colorado.edu
Keith Seffen, email: kas14@cam.ac.uk phone: +44 (0) 1223 7 64137 fax: +44 (0) 1223 3 32662
http://winterpatriot.blogspot.com/2007/11/wheres-paper-did-bbc-and-cambridge-don.html

“But Where the Fuck Do We Go?”

I don’t know how relevant it was that a demolition truck passed by, but this film is compelling and important to watch because it captures the experiences of the human beings during every moment of those horrible events. Caught in the chaos of the moment, sometimes the camera is held without awareness, only picking up passing words from the crowd, the police, the filmmakers.

New 911 Footage Shows Demolition Truck Near WTC

Previously unseen street level footage from 9/11 "coincidentally" shows a demolition truck near the WTC.

http://www.informationliberation.com/?id=23912