JREF Homepage Swift Blog Events Calendar $1 Million Paranormal Challenge The Amaz!ng Meeting Useful Links Support Us
James Randi Educational Foundation JREF Forum
Forum Index Register Members List Events Mark Forums Read Help

Go Back   JREF Forum » General Topics » Conspiracy Theories » 9/11 Conspiracy Theories
Click Here To Donate

Notices


Welcome to the JREF Forum, where we discuss skepticism, critical thinking, the paranormal and science in a friendly but lively way. You are currently viewing the forum as a guest, which means you are missing out on discussing matters that are of interest to you. Please consider registering so you can gain full use of the forum features and interact with other Members. Registration is simple, fast and free! Click here to register today.

Tags scale , model , twin , towers

Reply
Old 11th September 2006, 12:09 PM   #121
Architect
Chief Punkah Wallah
 
Architect's Avatar
 
Join Date: Aug 2006
Location: UK
Posts: 8,478
Originally Posted by TruthSeeker1234 View Post
Dog misunderstood

Many have been trying very hard to get the blueprints. Nobody is releasing them. Not the port authority. Not Silverstein. Not the Feds. Not Leslie Robertson's firm. Nobody. They've gone missing. maybe there were no drawings, maybe they just winged it.
Well in the UK, any proposals have to get a Building Warrant (or Buildings Regulations Approval, depending on where you are) in order to show compliance with statutory codes. Of course they're not the construction drawings, but they're still pretty detailed. These are then public documents, and can be FOIed in the normal manner.

Don't you Americans have a similar system?

I should note, however, that in the UK there would be an FoI exemption for particularly security-sensitive sites.
Architect is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 06:43 AM   #122
Oliver
~The Rascal~
 
Oliver's Avatar
 
Join Date: Aug 2006
Location: Cologne
Posts: 17,369
Originally Posted by TruthSeeker1234 View Post
I sent this to them -

Dear Sir or Madam:

Will you please tell me how I can purchase a complete set of detailed structural drawings of the twin towers? Let me know how much and where to send it, and I will forward the money.

Thank You,

I'll let you all know how that goes.
What was the response?
Oliver is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 03:42 PM   #123
einsteen
Guest
 
einsteen's Avatar
 
Join Date: Sep 2006
Posts: 917
A scale model will not work, because the physical behavior is not invariant under scaling.

Imagine you are enlarged a factor 2, then your weight becomes 2^3=8 times more, but the area of your muscles and strength only enlarges by 2^2=4 ===> problem.

You can however emulate/simulate ? a scale model if you use different densities/strengts/whatever and give it a different g value by accelerating it
einsteen is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 05:25 PM   #124
TruthSeeker1234
Banned
 
Join Date: Sep 2006
Posts: 1,756
Originally Posted by TruthSeeker1234
I sent this to them -

Dear Sir or Madam:

Will you please tell me how I can purchase a complete set of detailed structural drawings of the twin towers? Let me know how much and where to send it, and I will forward the money.

Thank You,

I'll let you all know how that goes.

What was the response?


No response yet. I'm not holding my breath. As I said, many researches have tried very hard to get them. I wonder why they are so secret? Could it be that "they" don't want anyone to be able to build an accurate model of a twin tower?
TruthSeeker1234 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 05:28 PM   #125
Bell
beautiful freak
 
Bell's Avatar
 
Join Date: Sep 2006
Location: The Netherlands
Posts: 20,465
Originally Posted by TruthSeeker1234 View Post
What was the response?


No response yet. I'm not holding my breath. As I said, many researches have tried very hard to get them. I wonder why they are so secret? Could it be that "they" don't want anyone to be able to build an accurate model of a twin tower?
Yes, absolutely. You are absolutely right.
__________________
Every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life.

INY
You gotta love cops.
Bell is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 05:33 PM   #126
Dog Town
Space for Rent
 
Dog Town's Avatar
 
Join Date: Aug 2006
Location: Sunny blue sky, cold water.
Posts: 4,461
Quote:
Could it be that "they" don't want anyone to be able to build an accurate model of a twin tower?
hb.gif

I feel ya TAM !
__________________
"Yes. I often wonder why it is that the nutjobs, who clearly think they're among a tiny handful of people who "get it", are wholly incapable of communicating effectively enough so that other people can understand them and "get it", too."
Gee Mack, JREF 5/15/09
Dog Town is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 05:58 PM   #127
apathoid
Government Loyalist
 
apathoid's Avatar
 
Join Date: Jun 2006
Location: The Virgo Supercluster
Posts: 2,699
Originally Posted by Dog Town View Post

I feel ya TAM !
TAM has the right idea about not debating the clownshoes anymore. I really can't think of anything that is less productive, perhaps teaching a 2 year old semi-retarded chimp Calculus would be more futile, hard to say.
apathoid is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 06:04 PM   #128
Alareth
Expert Expertologist
 
Alareth's Avatar
 
Join Date: Aug 2006
Location: Florida
Posts: 6,671
One scale model coming right up
__________________
Pixelated Reality | Alareth Does Art!

Light travels faster than sound, which is why some people appear bright, until you hear them speak
Alareth is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 13th September 2006, 06:04 PM   #129
Dog Town
Space for Rent
 
Dog Town's Avatar
 
Join Date: Aug 2006
Location: Sunny blue sky, cold water.
Posts: 4,461
Originally Posted by apathoid View Post
TAM has the right idea about not debating the clownshoes anymore. I really can't think of anything that is less productive, perhaps teaching a 2 year old semi-retarded chimp Calculus would be more futile, hard to say.
Hell that would be much easier! The chimp wants to use its brain, just not sure how! Cters seem to know how, but CHOOSE not to!
__________________
"Yes. I often wonder why it is that the nutjobs, who clearly think they're among a tiny handful of people who "get it", are wholly incapable of communicating effectively enough so that other people can understand them and "get it", too."
Gee Mack, JREF 5/15/09
Dog Town is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 14th September 2006, 06:13 AM   #130
Oliver
~The Rascal~
 
Oliver's Avatar
 
Join Date: Aug 2006
Location: Cologne
Posts: 17,369
Originally Posted by TruthSeeker1234 View Post
No response yet. I'm not holding my breath. As I said, many researches have tried very hard to get them.

I wonder why they are so secret? Could it be that "they" don't want anyone to be able to build an accurate model of a twin tower?
Could it be that you spend to much time in here to think
in such a "conspirational" way? :-D
Oliver is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 14th September 2006, 06:25 AM   #131
Brainache
Nasty Brutish and Tall
 
Brainache's Avatar
 
Join Date: Aug 2006
Location: Knob Hill.
Posts: 9,086
This was posted in the Loose Change thread. Is this what you were looking for?

http://news.uns.purdue.edu/UNS/html4...Sozen.WTC.html


Maybe you could get in touch with the guys who made this computer model and ask where they got the plans for the WTC.
__________________
Words cannot convey the vertiginous retching horror that enveloped me as I lost consciousness. - W. S. Burroughs

Invert the prominent diaphragm!!!

Last edited by Brainache; 14th September 2006 at 06:34 AM.
Brainache is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 14th September 2006, 06:38 AM   #132
gumboot
lorcutus.tolere
 
gumboot's Avatar
 
Join Date: Jun 2006
Location: New Zealand
Posts: 23,103
Not directly related...

But have a look at this.

I am utterly stunned. This guy has created an entire 3D computer model of the WTC complex. And I mean ENTIRE. He even has the escalators etc... it's truely incredible.

Here's a picture of the wire frame to give you an idea of the detail. He appears to intend to do the underground stuff and everything.

-Andrew
__________________

O xein', angellein Lakedaimoniois hoti têde
keimetha tois keinon rhémasi peithomenoi.


A fan of fantasy? Check out Project Dreamforge.
gumboot is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 14th September 2006, 06:46 AM   #133
KingMerv00
Penultimate Amazing
 
KingMerv00's Avatar
 
Join Date: Nov 2004
Location: Philadelphia, PA...USA
Posts: 14,482
I'd like to see it. What the hell...it would probably be interesting.
__________________
If man came from dust, why is there still dust?
KingMerv00 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 14th September 2006, 07:06 AM   #134
Hellbound
Abiogenic Spongiform
 
Hellbound's Avatar
 
Join Date: Sep 2002
Location: In a handbasket
Posts: 8,911
Originally Posted by TruthSeeker1234 View Post
DHR repeated

This is what NIST claim, yes. But NIST also claim that "thousands of pounds" of explosives would be needed to demolish the towers.

Clearly this is a contradiction. If a local collapse can lead to complete destruction, then all a demolition would need to do is cut the support columns at one floor, and let gravity take over.

Anybody care to reconcile those two NIST claims?
I will.

First, not any local collapse will lead to a global collapse. You need an entire floor to collapse, with several floors above it, and pretty much fail the whole floor at the same time (so the mass above that floor drops together as a live load). On 9/11 this was accomplished by:

1) The impact of a jet airliner, with an estimated energy yeild (from kinetic energy alone, not counting the ignition of jet fuel) equivalent to 4,000 to 6,000 lbs. of TNT.

2) Subsequent fires, which weakened the remaining support columns...columns that were already over-stressed due to the removal of many columns by event 1.

By examining the structural properties of steel, and the average size of the support colums in the WTC, I've calculated that you'd need thousands of pounds of explosives to cut the supports sufficiently to cause collapse of a single floor. Just over 3,000 lbs. of C-4 as a matter of fact (over 4,000 lbs. of TNT). Although, technically, if you used shaped charges, had direct access to the steel core and exterior columns (meaning cutting into walls), and only took out just enough of the columns to have a good chance of collapse (instead of taking them all out) you could get it just below 1,000 lbs. of explosive, if you're lucky. More realistically you'd still need 1500 to 2000 lbs. Even more realistically you'd have to limit your placements to areas that could be concealed and accessed, which would mean non-optimal placement and would also limit the ability to use shaped cutting charges...so I'd revise that estimate to 2,000 lbs. as a ballpark figure.

You'd need hundreds of tons to cut supports on all floors, or for a typical CD situation.

Of course, I've actually done some of the calculation on this, using information that is not that difficult to obtain. A bit easier for me, as I've had some demolitions training and experience, but anyone can get the data. But, as with most of the "Truth Seekers", spending a few days getting in touch with people who know demolition, and finding the sizes of the columns, the equations governing charge sizes, and doing a bit of multiplication is too much work...the 3,000 who died isn't worth that to you, eh?

Last edited by Hellbound; 14th September 2006 at 07:12 AM.
Hellbound is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 24th September 2006, 06:45 PM   #135
Oliver
~The Rascal~
 
Oliver's Avatar
 
Join Date: Aug 2006
Location: Cologne
Posts: 17,369
Originally Posted by TruthSeeker1234 View Post
I sent this to them -

Quote:
Dear Sir or Madam:

Will you please tell me how I can purchase a complete set of detailed structural drawings of the twin towers? Let me know how much and where to send it, and I will forward the money.

Thank You,
I'll let you all know how that goes.
What did they say?
Oliver is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 24th September 2006, 07:35 PM   #136
qarnos
Cold-hearted skeptic
 
qarnos's Avatar
 
Join Date: Apr 2004
Location: Melbourne, Austrylia
Posts: 1,985
Originally Posted by TruthSeeker1234 View Post
No response yet. I'm not holding my breath. As I said, many researches have tried very hard to get them. I wonder why they are so secret? Could it be that "they" don't want anyone to be able to build an accurate model of a twin tower?
Bolding mine.

Just a quick question... how hard is "tried very hard"? After all, you came on here bitching and moaning about the plans for goodness knows how long before we discovered you hadn't even tried to get them.

Does "tried very hard" mean sending an e-mail?
__________________
"In the twenty years since the Chernobyl tragedy, the world's worst nuclear accident, there have been nearly [FILL IN ALARMIST AND ARMAGEDDONIST FACTOID HERE]" - Greenpeace press release.
qarnos is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 25th September 2006, 02:28 AM   #137
sleahead
Critical Thinker
 
sleahead's Avatar
 
Join Date: May 2006
Posts: 406
Quote:
Originally Posted by TruthSeeker1234
No response yet. I'm not holding my breath. As I said, many researches have tried very hard to get them. I wonder why they are so secret? Could it be that "they" don't want anyone to be able to build an accurate model of a twin tower?
BS1234 should talk to Dylan Avery. Months ago, in the LC forum, Avery stated that blueprints would be in his hands imminently. They should have a talk, BSer to BSer.
sleahead is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 25th September 2006, 09:22 AM   #138
Bell
beautiful freak
 
Bell's Avatar
 
Join Date: Sep 2006
Location: The Netherlands
Posts: 20,465
Originally Posted by qarnos View Post
Bolding mine.

Just a quick question... how hard is "tried very hard"? After all, you came on here bitching and moaning about the plans for goodness knows how long before we discovered you hadn't even tried to get them.

Does "tried very hard" mean sending an e-mail?
I think "tried very hard" means that everytime the owner of the blueprints told him they would send them, he wanted something more. Like full size. Printed in gold. On the hide of an elephant. And wanted to publish it. Much like the BS101 $1000.00 challenge.
__________________
Every single day of my life has been worse than the day before it. So that means that every single day that you see me, that's on the worst day of my life.

INY
You gotta love cops.
Bell is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 25th September 2006, 01:30 PM   #139
TruthSeeker1234
Banned
 
Join Date: Sep 2006
Posts: 1,756
Purdue emailed back.

Quote:
Dear Mr. TruthSeeker1234,

at this point we do not have plans to extend the time interval.

Sincerely, Chris Hoffmann

______________________
Christoph M. Hoffmann
Computer Science, Purdue University
West Lafayette, IN 47907
ph: 765-494-6185, fax: 765-494-0739
www.cs.purdue.edu/homes/cmh
______________________

-----Original Message-----
From: TruthSeeker1234
Sent: Sunday, September 17, 2006 9:49 PM
To: venere@purdue.edu; Chris Hoffmann; Voicu Popescu; ayhan@purdue.edu;
purduenews@purdue.edu
Cc: ekgardner@purdue.edu; sozen@purdue.edu
Subject: WTC computer simulations

Dear Purdue Scientists:

I read with interest your material on the computer simulations of the jet
crash into WTC1 that you have created. Fine work.

As you may be aware, there is some debate as to whether or not a local
collapse of the upper section of the tower would lead to the type of
pulverizing, obliterating behavior that we actually observed on 9/11. (e.g.
See Ross http://worldtradecentertruth.com/Jou...ansferRoss.pdf)

Do you have any plans to run your model further in time? That is, would it
be possible for you to assume a local collapse of the upper part of the
building falling down into the lower part, and then model the behavior of
the entire tower from that point forward?

Thank You.

TruthSeeker1234 is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 28th September 2006, 01:32 AM   #140
Shrinker
Graduate Poster
 
Shrinker's Avatar
 
Join Date: Oct 2004
Posts: 1,033
From Cinefex issue 107, page 16. Regarding the visual effects for the movie World Trade Center:

Quote:
In an opening montage establishing the Manhattan skyline as it appeared early on the morning of the attacks, Double Negative nestled the World Trade Center's twin towers into live plates, computer modelling the structures using original blueprints.
(Double Negative is a visual effects company based in London.)

Now, isn't it wonderful how the people who need the blueprints can get hold of them, and the people who need the blueprints to be some sinister covered-up secret, can easily fail to get hold of them.
Shrinker is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 28th September 2006, 04:50 AM   #141
Lurker
Illuminator
 
Lurker's Avatar
 
Join Date: May 2002
Posts: 4,187
In Design News, Professor Abolhassen Astaneh-Asl was in New York days after the collapse to get information. He is a professor at UC-Berkeley in Structural Engineering. He collected perishable data, took photos and then proceeded to make computer models of the structure. He did have a grant from NSF to do this work and was able to obtain construction drawings and design documents from the Port Authority.

Specific to the docs, the article said:

Quote:
What he did not realize, however, was that he was embarking on a half-a-decade-long odyssey that would have him scrambling for resources and trying to obtain construction drawings and design documents for the towers from the Port Authority of New York and New Jersey, the owner of the WTC.

The release of these documents—which ultimately required an order from Congress’ Committee on Science --was critical because they contained design specifics that Astaneh-Asl needed in order to develop a detailed structural model to simulate the impact of the airplanes on the twin towers.
http://www.designnews.com/article/CA6363426.html

So Truthseeker is partially correct in that not just anybody can request and receive those documents from the Port Authority. But they have been released to Professor Abolhassen Astaneh-Asl.

Lurker
Lurker is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 28th September 2006, 05:49 PM   #142
Matthew Best
Illuminator
 
Matthew Best's Avatar
 
Join Date: Jun 2006
Location: Leicester Square, London
Posts: 4,113
Here is an interesting story on Mr Astaneh-Asl's theories about why the WTC buildings collapsed.

It seems his ideas are somewhat controversial as he seems to be suggesting that if they'd been built according to New York City Building Codes (they weren't) they would have stayed standing longer.

(Incidentally, in this story he says he was sent a copy of the building plans by an official from FEMA.)
Matthew Best is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Old 28th September 2006, 10:43 PM   #143
Blackadder_no
Rocket Scientist
 
Blackadder_no's Avatar
 
Join Date: Jul 2006
Location: Innerst inni granskauen
Posts: 104
Originally Posted by Matthew Best View Post
Here is an interesting story on Mr Astaneh-Asl's theories about why the WTC buildings collapsed.
Originally Posted by Astaneh-Asl
"From the day that I stood there and watched it collapse" on television, he says, "I was thinking that this is impossible. That there's something strange here."
Quoted out of context in 5... 4... 3...
Blackadder_no is offline   Quote this post in a PM   Nominate this post for this month's language award Copy a direct link to this post Reply With Quote Back to Top
Reply

JREF Forum » General Topics » Conspiracy Theories » 9/11 Conspiracy Theories

Bookmarks

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump


All times are GMT -7. The time now is 11:34 AM.
Powered by vBulletin. Copyright ©2000 - 2013, Jelsoft Enterprises Ltd.
© 2001-2012, James Randi Educational Foundation. All Rights Reserved.

Disclaimer: Messages posted in the Forum are solely the opinion of their authors.