Has Anyone Seen A Realistice Explanation For Free Fall Of The Towers?

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Christophera said:
The core was on its own foundation and went below the basement. The upper portions of the core were detonated, ripping the steel structure apart after the steel columns were cut every other floor. At about the 43rd floor the core detonations stopped for a second or so and the thermite inthe basement cut most of the interior columns and the perimeter columns so that the thicker walls, having more explosives in them would not throw heavy steel into adjacent buildings. The standing core then detonated with delays just faster than free fall to the ground.

Okay, we'll disagree.
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If this was the case, why is there no footage showing the core detonating?
 
I see now about this whole repeating over and over and over again the same thing and ignoring evidence that goes against it until folks just give throw up their hands in disgust and walk away.

Like the artist Poe said, "You can't talk to a psycho like a normal human being".
 
Christophera said:
August Domel, Jr., Ph.D., S.E., P.E. November 2001

Groundbreaking for construction of the World Trade Center took place on August 5, 1966.Tower One, standing 1368 feet high, was completed in 1970, and Tower Two, at 1362 feet high, was completed in 1972. The structural design for the World Trade Center Towers was done by Skilling, Helle, Christiansen and Robertson. It was designed as a tube building that included a perimeter moment-resisting frame consisting of steel columns spaced on 39-inch centers. The load carrying system was designed so that the steel facade would resist lateral and gravity forces and the interior concrete core would carry only gravity loads.

Dr. Domel received a Ph.D. from the University of Illinois at Chicago in 1988 and a Law Degree from Loyola University in 1992. He is a licensed Structural Engineer and Attorney at Law in the .State of Illinois and a Professional Engineer in twelve states, including the State of New York. Dr. Domel is authorized by the Department of Labor (OSHA) as a 10 and 30 hour construction safety trainer.

http://www.ncsea.com/downloads/wtcseerp.pdf
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Finally, something of substance. I'll check it out.

ETA: Looking forward to reading their definition of a "concrete core".
 
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Christophera said:
August Domel, Jr., Ph.D., S.E., P.E. November 2001

Groundbreaking for construction of the World Trade Center took place on August 5, 1966.Tower One, standing 1368 feet high, was completed in 1970, and Tower Two, at 1362 feet high, was completed in 1972. The structural design for the World Trade Center Towers was done by Skilling, Helle, Christiansen and Robertson. It was designed as a tube building that included a perimeter moment-resisting frame consisting of steel columns spaced on 39-inch centers. The load carrying system was designed so that the steel facade would resist lateral and gravity forces and the interior concrete core would carry only gravity loads.

Dr. Domel received a Ph.D. from the University of Illinois at Chicago in 1988 and a Law Degree from Loyola University in 1992. He is a licensed Structural Engineer and Attorney at Law in the .State of Illinois and a Professional Engineer in twelve states, including the State of New York. Dr. Domel is authorized by the Department of Labor (OSHA) as a 10 and 30 hour construction safety trainer.

http://www.ncsea.com/downloads/wtcseerp.pdf
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Everyone makes mistakes, Christophera. But to make the same mistake over and over while being corrected again and again? Would you call that mature, intelligent behavior?
 
Christophera said:
August Domel, Jr., Ph.D., S.E., P.E. November 2001

Groundbreaking for construction of the World Trade Center took place on August 5, 1966.Tower One, standing 1368 feet high, was completed in 1970, and Tower Two, at 1362 feet high, was completed in 1972. The structural design for the World Trade Center Towers was done by Skilling, Helle, Christiansen and Robertson. It was designed as a tube building that included a perimeter moment-resisting frame consisting of steel columns spaced on 39-inch centers. The load carrying system was designed so that the steel facade would resist lateral and gravity forces and the interior concrete core would carry only gravity loads.

Dr. Domel received a Ph.D. from the University of Illinois at Chicago in 1988 and a Law Degree from Loyola University in 1992. He is a licensed Structural Engineer and Attorney at Law in the .State of Illinois and a Professional Engineer in twelve states, including the State of New York. Dr. Domel is authorized by the Department of Labor (OSHA) as a 10 and 30 hour construction safety trainer.

http://www.ncsea.com/downloads/wtcseerp.pdf
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That site and this one http://www.google.com/url?sa=t&ct=r...LOPE4z6oQLj6NyHDg&sig2=kuJ6hqFLOxL2j8tUD0FOIA
are the only two sites that provide hits when googling for "world trade center" "load carrying system" "concrete core"
 
Christophera's Invisicrete Core With Hallways
87904495b5c1ae08b.jpg


87904495b879af0d4.jpg

87904495b879ebd4b.jpg

Christophera, what's the recipe for Invisicrete?​
 
Pardalis said:
Finally, something of substance. I'll check it out.

ETA: Looking forward to reading their definition of a "concrete core".
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No substance to be had in that document. the paragraph quoted is the only mention of the construction used in the wtc and is a cut-paste job for the report introduction. The report is actually a how-to document for using structural engineers in a major disaster, and how to prepare to have them ready to go when one occurs.

the report does mention that each structural engineering team had to file a report each time they came back in. Those would be interesting to see.
 
Gravy said:
Everyone makes mistakes, Christophera. But to make the same mistake over and over while being corrected again and again? Would you call that mature, intelligent behavior?
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I might have had something to do with that. I didn't realise the link had already been discussed. My mistake to not having read the whole thread. :o
 
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Gravy said:
Christophera's Invisicrete Core With Hallways
[qimg]http://www.internationalskeptics.com/forums/imagehost/87904495b5c1ae08b.jpg[/qimg]
​
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This design isn't structurally sound. The "interior" walls aren't vertically continuous, they're interrupted every other floor by the hallway. That can't be load bearing without some huge columns supporting them. As shown they're a waste of concrete.​
 
kevin said:
No substance to be had in that document. the paragraph quoted is the only mention of the construction used in the wtc and is a cut-paste job for the report introduction. The report is actually a how-to document for using structural engineers in a major disaster, and how to prepare to have them ready to go when one occurs.

the report does mention that each structural engineering team had to file a report each time they came back in. Those would be interesting to see.
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Thanks. I missed that part of the thread. I'm catching up. ;)

I was betting that the confusion about the "concrete core" might be the definition itself, that's why I wanted to read Christophera's own sources and learn myself what exactly "concrete core" means (and how he might have interpreted it).
 
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Still. Not One Image From Thr DEMO Showing Steel Core Columns

bob_kark said:
If this was the case, why is there no footage showing the core detonating?
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There is http://i18.photobucket.com/albums/b108/janedoe444/.site1106.jpgand it is inside the outer steel framework. It is ripping the framework apart after the interior box columns are cut. The plumes of concrete debri go out over the floors after the floors detonate, and hide the floors below detonating. Except in the linked case of premature detonations

http://algoxy.com/psych/9-11scenario.html#anchor1233383

within the scheme of the delays and paths of the detonation circuits.

http://algoxy.com/psych/9-11scenario.html#anchor1232703
 
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Christophera said:
There is http://i18.photobucket.com/albums/b108/janedoe444/.site1106.jpgand it is inside the outer steel framework. It is ripping the framework apart after the interio box columns are cut. The plumes of concrete debri go out over the floors after the floors detonate,

http://algoxy.com/psych/9-11scenario.html#anchor1233383

within the scheme of the delays and paths of the detonation circuits.

http://algoxy.com/psych/9-11scenario.html#anchor1232703
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Ah, I suppose I will have to wait until I get home to respond to the images. Thank you for answering my questions.
 
Christophera said:
Mr. Kark,

There are no images of the steel core columns because they did not exist. What is being posted are misrepresentations. If the steel core columns existed they would be seen HER. Instead what is seen is the spire, formed by an interio box column and an end view of the concrete core shear wall.
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So what you are saying is that the columns don't exist because, if they did, there would be pictures of them. And that there are no pictures of them because they do not exist. May I suggest you find and read an article on "circular reasoning"?

Also, why do you insist that a photo showing steel core columns be shown from after the collapse? Why are photos from construction not good enough? After all, construction was much more organized than the debris pile, and so things are easier to see and distinguish from those photos.

Finally, I notice that just about every photo you show as evidence is taken from across the river or some other great distance. None of your photos are taken at Ground Zero itself. You must have pretty sharp eyesight to distinguish rebar and concrete from 2 miles away.
 
Try Oxford Encyclopedia of Technology and Inovation

kevin said:
No substance to be had in that document. the paragraph quoted is the only mention of the construction used in the wtc and is a cut-paste job for the report introduction. The report is actually a how-to document for using structural engineers in a major disaster, and how to prepare to have them ready to go when one occurs.

the report does mention that each structural engineering team had to file a report each time they came back in. Those would be interesting to see.
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Oxford encyclopedia of Technology and Inovation that was published in 1992
 
Gravy said:
You obviously haven't been looking at my photos. Why not? What are you afraid of?
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Sure I've looked at them and I've told you the core is below the top of the tower by 7 floors. I've told you that light passes through the hallways.

How come the multiple steel columns are not silhouetted? If such existed there would be a phase where one could look through the floors and see them in the core area.

The Concrete cores had hallways, WTC 2 more than 1. WTC 1 was hard to rent out because access thru the core was so bad.

Still not one image of the supposed steel core columns from the demolition at some elevation, like here.
 
Christophera said:
Gravy has not addressed the 3" REBAR ON 4' CENTERS nor has it produced an image of the steel core columns from demo photos of steel columns. NOTE: the above image link should show some of the supposed 47, steel core columns IF they existed, which they didn't.
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Yes, he has.

http://www.internationalskeptics.com/forums/showpost.php?p=1711500&postcount=674

Christophera said:
Your image proves nothing. This image of the core proves that there was a concrete core because nothing else could survive and have that appearance. The image also proves there were not steel core columns.
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You DO know that collapsing buildings of that size can leave columns of smoke in their center ?

http://www.internationalskeptics.com/forums/showpost.php?p=1711500&postcount=674

See second photo
 
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