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Tags wtc , wtc collapse , wtc fires

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Old 26th September 2010, 01:42 PM   #41
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I can't help but notice that none of the twoofers in this thread has even attempted to answer the question in the OP - you know, the topic of the thread. It seems that the standard twoofer MO when confronted with a question they don't want to/can't answer is to start JAQing off like crazy.
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Old 26th September 2010, 01:45 PM   #42
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Originally Posted by Sivan Kurzberg View Post
Tube in tube design is not that unusual.

What about a tube in tube building on fire?

Originally Posted by Sivan Kurzberg View Post
The WTC design made it stronger than other high rise buildings. The design is what's credited with the WTC buildings being able to take the plane impacts. This does not help your case.

We are talking about fire resistence.

Originally Posted by Sivan Kurzberg View Post
Speculation never exactly equated as to how and how much.

Are you suggesting the fire protection could resist the explosion?

The amount lost is irrelevant.

http://www.youtube.com/watch?v=EULH-epXrew

Originally Posted by Sivan Kurzberg View Post
Sprinkler systems in the tower are thought to be damaged on the floors of the impacts based on NIST calculations. This is speculation not proven. We know the sprinklers were working on other floors from witness statements of water running down the stairs. Any assertions about what was going on on the impact floors is pure speculation. The towers survived a fire in the seventies without a sprinkler. Still we are only talking about one hour on a few floors that it needed to survive

Water running down the stairs doesn't mean the sprinlçers system was working. It could be an broken plumbing.

Originally Posted by Sivan Kurzberg View Post
All of which the building took and remained standing. WTC7 didn't even need this in your OCT to collapse.

This thread is about the WTC 1 and 2.

Originally Posted by Sivan Kurzberg View Post
All of which the building took and remained standing.

But made the remaining columns had to bear a greater load than before.

Originally Posted by Sivan Kurzberg View Post
You hardly have any plane left in PA and at the Pentagon, but now all of a sudden the plane debris is overloading the tower floors? In your so called raging inferno no less. I guess the aluminum should have survived what you claim the steel didn't. Yeah right.

ho ho ho
That's truthers claim.

Originally Posted by Sivan Kurzberg View Post
Most of which burnt up outside the building not to mention the fireball you are all clamoring about around here all the time. The rest burnt up in a matter of minutes according to your OCT. The building still stood.

What about the furniture ignited by the fuel?

Originally Posted by Sivan Kurzberg View Post
Not very long at all.

But enough to cause unprotect steel columns and trusses to fail.
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Old 26th September 2010, 01:46 PM   #43
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Originally Posted by Patriots4Truth View Post
I wasn't pretending that it was my own work. I linked to the reference site within the wall of copied text.

Actually, no you didn't. The reference you see in the quoted text from my reply is how it appears in that format when referencing the pictures. In your original post it only showed the pictures and gave no reference to 911research's web site.

If you are going use other's work, at least be honest about it.
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Old 26th September 2010, 01:49 PM   #44
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Originally Posted by Sivan Kurzberg View Post
Tube in tube design is not that unusual.
Name another one.

One of the principle engineers attributed the collapse to the thousands of gallons of fuel that ignited the multi-floor fires.

Quote:
Henry Guthard, engineer and one of [WTC designer] Yamasaki's original partners who also worked as the project manager at the [WTC] site, said, "To hit the building, to disappear, to have pieces come out the other side, it was amazing the building stood. To defend against 5,000 (sic) gallons of ignited fuel in a building of 1350 feet is just not possible.

http://snurl.com/j54gc (Report From Ground Zero page 188)
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Old 26th September 2010, 01:50 PM   #45
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[quote=Patriots4Truth;6375771]
...
2)[/b] "comparisons between the Windsor tower and the WTC Towers are limited because of the very different structures of these buildings. The Twin Towers and Building 7 were both 100% steel-framed, with large wide-flange columns and box columns, some measuring over four feet wide and fabricated of steel up to five inches thick. Severe fires in other skyscrapers which, like the WTC Towers, were 100% steel-framed, have not produced even partial collapses.

In contrast to the WTC Towers, the Windsor building was framed primarily in steel-reinforced concrete, with columns of concrete reinforced by thin sections of rebar. The concrete pillars in the Windsor building are clearly visible in the photographs showing the intact core exposed by the collapsed facade. The very light construction of the perimeter, described here, makes it clear that the core was the main load-bearing component of the building."
...

I have nothing to gain by pretending this is my own work
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Old 26th September 2010, 01:52 PM   #46
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Originally Posted by Patriots4Truth View Post
I have nothing to gain by pretending this is my own work
Then you should have been clear and honest about it.
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Old 26th September 2010, 01:58 PM   #47
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Originally Posted by BigAl View Post
Name another one.
I think the The Bank of Oklahoma tower uses the same design. Which seems logical, since it is a scaled replica of the WTC.

http://www.believermag.com/issues/20...article_taylor
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Old 26th September 2010, 01:58 PM   #48
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Originally Posted by Bell View Post
Then you should have been clear and honest about it.
or you could have just acknowledged the obvious...
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Old 26th September 2010, 02:00 PM   #49
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Originally Posted by Patriots4Truth View Post
or you could have just acknowledged the obvious...
Which I did.
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Old 26th September 2010, 02:03 PM   #50
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Originally Posted by Bell View Post
Which I did.
the obvious meaning it wasn't my own work
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Old 26th September 2010, 02:05 PM   #51
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Originally Posted by Patriots4Truth View Post
the obvious meaning it wasn't my own work
The only indication your original post gave, that it was not yours, was that it was too articulate and put together formatting wise.

I cut a piece of it out and did a google search to match it up. Seems others here did as well.

The point is, it is not only dishonest to not provide a link to work presented that is not your own, but it is against forum rules

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Old 26th September 2010, 02:06 PM   #52
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Originally Posted by Sivan Kurzberg View Post
... the sudden global collapse of the entire structure in a matter of seconds ...
Sudden? How many hours for WTC7? Collapsing more than twice as slow as free-fall. How long for fires in WTC1 and 2? You use the biblical time scale for sudden? You have failed ideas on 911 and your qualifications, eating wings and watching; doing something, having evidence is past your skill set, as evidence by your choice of moronic delusions on 911 issues and failure to contact the FBI with your "ample evidence". Oops, you have no evidence. What moronic delusion do you have on Flight 77 and Flight 93 that are as bad as your understanding of fire? Fire science, not in your bag of tricks, wings and NFL are. Better keep to what you know, understanding 911 is not your forte. Order more wings.

Fire destroys the strength of steel, in fires not fought, the building might collapse. Please present buildings with fire systems broke, no firefighting, with broken windows and openings for air to get to the fire which did not fail, which were not totaled by fire. Post some! Do it; darn, you are eating and watching the NWO play football.

Fire totals buildings. Firemen and a sprinkler system saved this building from collapse. No one fought the fires in WTC 1, 2, and 7. There were totaled. This fire was fought, the building was totaled. Fire destroys the strength of steel. Reality destroys delusions, if you can grasp reality. You grasp wings, not reality.
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Old 26th September 2010, 02:07 PM   #53
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The link was in the text which I pointed out.
But thanks for reinforming me about forum rules
I haven't been here very long
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Old 26th September 2010, 02:12 PM   #54
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A quick comment while I'm on break...
Originally Posted by Patriots4Truth View Post
Mister citizen assumes the only fuel available for the fires was the jet fuel. It's a repeat of the "no steel over 600oF" claim which itself is based on a bastardization of the NIST report's conclusion. Given his premise is incorrect, his video is of little to no relevance.

Originally Posted by Patriots4Truth View Post
Quote:
When the WTC towers were built there was extensive controversy over their safety in emergencies. The NYC Fire Department protested, as did a host of other agencies and professional associations. The buildings were constructed in bulk and height far in excess of what municipal constuction and zoning codes allowed. However, the Port Authority, a quasi-governmental agency with exceptional powers inherited from the regime of Robert Moses, was specifically exempt from compliance with municipal codes. The real estate, construction and finance industries were powerful supporters of the project.

Aside, I add that in 30 some years of examining buildings in New York, I have found none, zero, which are fully compliant with municipal building codes. It is a terrible, little reported scandal of the city in which it is considered to be bad business to fully comply with codes.
source

Also, pertinent to the video's specific claim: the effect of fires following such an impact were not considered.

Speed Of The Collapse Was Too Fast
Why the speed issue is always brought up is beyond me... Once the collapse initiated it was collapsing regardless of whether it took 10 or 30 seconds... Mr citizen obviously cites the commission report, which for whatever reason truthers to this day still hold the absurd belief it was intended to be a engineering report as opposed to a bipartisan investigation concerning what lead to the attacks happening, not determining how or why the towers failed.

The First Steel Framed High-Rise Fire Collapses
"First time in history" is a bowl of laughs... To claim this requires an absolute bastardization and ignorance of steel material properties and general design case studies. His opinions being based on such faulty premises renders his video irrelevant.

WTC Collapse
This was a regurgitation of all the videos in your list preceding it.


WTC 7's Collapse Is Still A Mystery
This comment was pretty stupid, considering only "on-tenth" or so of WTC 1 & 2 each were burning.


Makes me genuinely curious if he's ever seen a building up close while it was on fire.

He also believes the smoke emanating from WTC 7 was not from WTC 7... similar to the DRG/Jones claim that the smoke instead came from WTC 5...

Apparently his "mystery" is part of his faulty premise... and this video is also not relevant to any degree.

South Tower Should Have Toppled

Absolutely fail, the towers were not solid trees.

patriots4truth, these videos are little more than psuedoscience and regurgitation. I would be interested if you can offer your own argumentinstead of offering a regurgitation of 2006 from unqualified individuals. Thankyou
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Old 26th September 2010, 02:13 PM   #55
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Originally Posted by Patriots4Truth View Post
The link was in the text which I pointed out.
But thanks for reinforming me about forum rules
I haven't been here very long
That's weird. You agreed with this forum's Membership Agreement when you signed up.

Here it is again: http://www.internationalskeptics.com...ad.php?t=25744

Read it sometime. Especially rule 4.
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Old 26th September 2010, 02:13 PM   #56
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Originally Posted by Patriots4Truth View Post
The link was in the text which I pointed out.
But thanks for reinforming me about forum rules
I haven't been here very long
Actually, that was a link that references people further down the page. It is a link that is in the original material. Yes, clicking on it, would bring them to that page, but that is not a proper linking to your cited material...but you know that, you just find it impossible to simply say...I made a mistake, sorry, I'll try not to let it happen again.

You are welcome for the information on forum rules.

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Old 26th September 2010, 02:15 PM   #57
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Originally Posted by Patriots4Truth View Post
You post videos filled with lies. Are you unable to understand the lies?

The WTC tower design could resist an impact of an aircraft at 200 mph and less. If you could grasp physics you could calculate that the impacts on 911 were 7 and 11 times greater than the design Robertson had for the towers.

You could check this, but it requires math and physics, two skills 911 truth does not have.

Proof of my claims can be checked with E=1/2mv2, and asking Robertson (no one else) what the details were for an impact of an aircraft considered by him. BTW, in a study done after 911, engineers found aircraft at and below 200 mph would not enter the building, verifying Robertsons design.

Why are you able to post idiotic videos and not get anything right about 911? How do you do it? Are you trying to post moronic lies? You have perfected it.
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Old 26th September 2010, 02:16 PM   #58
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the speed issue is of obvious importance. if you don't see that you are truly lost
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Old 26th September 2010, 02:19 PM   #59
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Originally Posted by Bell View Post
I think the The Bank of Oklahoma tower uses the same design. Which seems logical, since it is a scaled replica of the WTC.

http://www.believermag.com/issues/20...article_taylor
Thank you. Interesting. It's 1:4 scale and I bet lunch that unlike WTC1/2, it is built to real fire codes.

The 1:4 scale means the floor spans are tiny amd stiffer, less subject to sag in a fire. The 1:4 scale means by the cube law that forces will be about 1/64th of those in WTC for similar damage.

In any case, WTC1/2 were subject to all of these effets simultaneously.
  • tube-in-tube structural design unique to WTC1/2 and shown to be subject to truss failure in fire.
  • effectively no fireproofing
  • no working fire sprinkler system
  • hit by 140 tons of aircraft at 450MPH.
  • Resulting structural damage
  • Local floor overload from the tons of aircraft debris
  • thousands of gallons of fuel ignited on many inside the building
  • resulting hour of fire
  • No firefighting effort possible.
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Old 26th September 2010, 02:20 PM   #60
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Originally Posted by Patriots4Truth View Post
haha . What a fiesty reply! 9 years of obsessed debunkers...

Hardcore debunkers like you should get the phrase "got some evidence" tattooed on your knee since it's the typical jerk reply to anything truthers say

In my case you are asking for evidence of thermite when it hasn't even been mentioned in this thread

Do You plagiarize all your knowledge on 911; why? Can't you think for yourself?

Ironically, your plagiarized post proves fires destroys buildings and you have no clue why.

All the videos you post are lies. Do you have special google filter to find only idiotic videos produced by morons? Where did you get it?
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Old 26th September 2010, 02:21 PM   #61
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Originally Posted by Patriots4Truth View Post
I believe there is a reason why it has taken a while for everything to be published. The timing has to be right for a case as huge as this one.
So, you're waiting for 9 years because.............
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Old 26th September 2010, 02:23 PM   #62
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Originally Posted by Patriots4Truth View Post
the speed issue is of obvious importance.
I'm afraid not... having a major structural failure where the loads are no longer axial or within the design parameters (such as when a large section of the building begins to collapse) will result in the same basic thing regardless of what initiates the failure.
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Old 26th September 2010, 02:23 PM   #63
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Originally Posted by BigAl View Post
Thank you. Interesting. It's 1:4 scale and I bet lunch that unlike WTC1/2, it is built to real fire codes.

The 1:4 scale means the floor spans are tiny amd stiffer, less subject to sag in a fire. The 1:4 scale means by the cube law that forces will be about 1/64th of those in WTC for similar damage.

[...]
Yeah, I didn't mean to imply that the BOk tower would behave the same as the WTC towers, just that it's a tube in a tube design
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Old 26th September 2010, 02:25 PM   #64
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"your links are entirely lies!"
you should have that tattooed on your other knee
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Old 26th September 2010, 02:32 PM   #65
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Originally Posted by Patriots4Truth View Post
"your links are entirely lies!"
you should have that tattooed on your other knee
Why?
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Old 26th September 2010, 02:34 PM   #66
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Originally Posted by Patriots4Truth View Post
"your links are entirely lies!"
you should have that tattooed on your other knee
It is common knowledge for rational thinkers that your posted videos are idiotic delusions, made up by morons. The proof is the fact this post is all you can about it; you can't back up the lies you posted, you can only make up weak tattoo jokes.

Take your favorite moronic claim on 911 and defend it will all your "ample evidence".


Originally Posted by Patriots4Truth View Post
I believe there is a reason why it has taken a while for everything to be published. The timing has to be right for a case as huge as this one.
This was funny, better tattoo this one on your forehead backward for future reference, along with 911 was an inside job, followed by all your evidence. 0


Fire did it, 911 truth can't grasp reality. 911 truth, evidence free, now include cute tattoo jokes; no charge.
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Old 26th September 2010, 02:38 PM   #67
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Originally Posted by beachnut View Post
It is common knowledge for rational thinkers that your posted videos are idiotic delusions, made up by morons. The proof is the fact this post is all you can about it; you can't back up the lies you posted, you can only make up weak tattoo jokes.

Take your favorite moronic claim on 911 and defend it will all your "ample evidence".


This was funny, better tattoo this one on your forehead backward for future reference, along with 911 was an inside job, followed by all your evidence. 0


Fire did it, 911 truth can't grasp reality. 911 truth, evidence free, now include cute tattoo jokes; no charge.
English isn't your first language is it?
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Old 26th September 2010, 02:38 PM   #68
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Just as a matter of record, I don't think the author of the videos patriots4truth cites is a liar. To be a liar, he would need to present his information knowing that it is false. I just found him to be incredibly ignorant and inexperienced at parroting lies he receives from others.

As fun as it is to point all this out however, I would be really interested in seeing the OP question answered. I've been curious about such a mindset of truthers for some time now.
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Old 26th September 2010, 02:40 PM   #69
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Originally Posted by Patriots4Truth View Post
English isn't your first language is it?
Remember the Membership Agreement I linked to earlier?

http://www.internationalskeptics.com...ad.php?t=25744

Rule 12, "Address the argument, not the arguer."
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Old 26th September 2010, 02:46 PM   #70
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Originally Posted by Patriots4Truth View Post
English isn't your first language is it?
Does it matter?

Patriots4Truth, can I ask you something? Have you accepted that any of your claims - or 9/11 truth's claims as a whole - are false? Not that all of them are. Just... some. Has anything anyone has posted here made you stop and go "Hm. I guess that was wrong after all"?
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Old 26th September 2010, 02:50 PM   #71
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Originally Posted by Patriots4Truth View Post
English isn't your first language is it?
Evidence? You can't even get this one right. Wow, you don't understand 911, you post lies and can't defend them. Is this your best post to support your claims on 911?

You google lies and post them without thinking. Logic is not in your bag, no evidence, and your ESL identifier failed to do more than expose my poor grammar, and the fact I am watching the NFL, and baby sitting 2 grandkids, failing to take the time (could be infinite) to make my posts perfect.
... you don't waste time researching 911, you post lies, why should I correct my grammar and waste my time.

Robertson the chief structural engineer of the WTC said fire did it. You guys have some idiots who appear to be on meth in videos so stupid it hurts.

I wish I had an excuse for poor writing skills, and one day you will wish you had an excuse for pushing moronic delusions. It is sad people fall for the polite dolts in 911 truth like Jones and his lie of thermite, and fail to use their own critical thinking to discover Jones and all of 911 truth are liars, they don't care, they have to make up idiotic lies.

Fire did it, I cheated and used the #1 expert on the WTC towers. An engineer degree, a masters in engineers can't hurt, but is not needed to understand 911, and understand 911 truth only has lies.

Last edited by beachnut; 26th September 2010 at 02:55 PM.
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Old 26th September 2010, 03:05 PM   #72
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Quote:
I have nothing to gain by pretending this is my own work
OK P4T. We've established that you copied and pasted something that wasn't your own and you made no attempt to establish this. I don't feel the need to beat up on you any longer about it.

So how about addressing the question of the thread? And let's see if you can do it on your own without stealing the work from others or a youtube video. Do you need the question repeated to you or are you ok?
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Old 26th September 2010, 03:05 PM   #73
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all the defense is here, and here, and here of http://911research.wtc7.net.

"Twin Towers' Rates of Fall Proves It Wasn't Fire (link)

Each of the Twin Towers fell completely in intervals of time similar to that taken for a block of wood dropped from a tower's roof to reach the ground. A block of wood has about the same average density as the main components of the towers near their tops.

In a vacuum, a block of wood (or lead) would take 9.2 seconds to fall from the tower's roof. In the air a block of wood, say ten inches on a side, might take 50 percent longer than in a vacuum. Fifteen seconds, a good estimate for the total time of collapse of the North Tower, is about the time it would take our block to fall from the roof. The rubble from the Tower probably had similar average density to our block of wood, since the floor slabs consisted of corrugated sheet metal and lightweight concrete, and the perimeter steel columns were hollow with walls only 1/4th inch thick at the Towers' tops. Air resistance alone could account for the slowing of the falls to the point where each Tower took about 15 seconds to completely come down.

The official story requires that more than air resistance was slowing the descents. The falling rubble would be having to crush every story below the crash zone -- ripping apart the steel grids of the outer walls and obliterating the steel lattice of the core structure. The resistance of the intact building itself would be thousands of times greater than air resistance.

If air resistance is able to increase total collapse times by even 20 percent, then shouldn't the addition of the resistance of the buildings themselves increase the time several thousand percent, to at least tens of minutes?"

Hopefully ^this isn't considered "a large amount of material"

In any case, at the exact time in which free-fall happened there should of been more resistance ie. no free-fall at that particular time.
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Old 26th September 2010, 03:07 PM   #74
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addressing the question of this thread, a fire collapse is possible, but not at all likely the way it went down for the WTC towers (see the first 3 links of my last post)

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Old 26th September 2010, 03:11 PM   #75
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Quote:
In the air a block of wood, say ten inches on a side, might take 50 percent longer than in a vacuum. .
Exactly how are you calculating that or would you like to check with Hoffman on this?
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Old 26th September 2010, 03:14 PM   #76
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And then please tell me how air resistance on a 10 inch cube of wood is similiar to a 50,000 ton mass.
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Old 26th September 2010, 03:28 PM   #77
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Originally Posted by Patriots4Truth View Post
fires.

* Steel is a good conductor and concrete is a poor conductor of heat. Thus in a fire, a steel frame will conduct heat away from the hotspots into the larger structure. As long as the fire does not consume the larger structure, this heat conductivity will keep the temperatures of the frame well below the fire temperatures. The same is not true of steel-reinforced-concrete structures, since concrete is not a good thermal conductor, and the thermal conductivity of the rebar inside the concrete is limited by its small mass and the embedding matrix of concrete.
* Fires can cause spalling of concrete, but not of steel. This is because concrete has a small percentage of latent moisture, which is converted to steam by heat. Thus, a large fire can gradually erode a concrete structure to the point of collapse, whereas a fire can only threaten a steel-framed structure if it elevates steel temperatures to such an extent that it causes failures.
My goodness. You really have no understanding of building fabric performance or fire engineering, do you?
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Old 26th September 2010, 03:30 PM   #78
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Originally Posted by Architect View Post
My goodness. You really have no understanding of building fabric performance or fire engineering, do you?
More accurately, he has no understanding the people he is quoting have no understanding of building fabric performance or fire engineering.
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Old 26th September 2010, 03:36 PM   #79
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Originally Posted by Patriots4Truth View Post
...
2)[/b] "comparisons between the Windsor tower and the WTC Towers are limited because of the very different structures of these buildings. The Twin Towers and Building 7 were both 100% steel-framed, with large wide-flange columns and box columns, some measuring over four feet wide and fabricated of steel up to five inches thick. Severe fires in other skyscrapers which, like the WTC Towers, were 100% steel-framed, have not produced even partial collapses.

In contrast to the WTC Towers, the Windsor building was framed primarily in steel-reinforced concrete, with columns of concrete reinforced by thin sections of rebar. The concrete pillars in the Windsor building are clearly visible in the photographs showing the intact core exposed by the collapsed facade. The very light construction of the perimeter, described here, makes it clear that the core was the main load-bearing component of the building."
...

I have nothing to gain by pretending this is my own work
From your own source:

"The portion of the building that collapsed consisted of the outer portions of floor slabs and perimeter walls throughout the upper third of the building (the 21st through 32nd floors). The outer walls consisted of steel box columns arranged on 1.8 meter centers and connected by narrow spandrel plates. The columns had square cross-sections 120mm on a side, and were fabricated of C-sections 7mm thick welded together. (these had a fraction of the dimensions, and were spaced about twice as far apart as the perimeter columns of the Twin Towers.) The perimeter columns lacked fireproofing throughout the upper third of the Windsor building."

His source did not support the claim the perimeter columns "were fabricated of C-sections 7mm thick" even if true they had much less load to support than the WTC columns and were more robust than the 60 foot long floor trusses which is where NIST believes the collapses initiated.

I already dealt with this on another forum years ago the columns started collaping after 2 - 3 hours:

Mitigating factors:
-The Windsor wasn’t by a plane
-The steel columns bore relatively little load and weren’t attached to horizontal steel structural elements presumably damaged by the fire

Aggravating factor:
-the columns had no vs. damaged / destroyed fireproofing.


So yes we have a case of steel in a high rise failing due to fire the building remained standing because the rest of the frame was reinforced concrete. As for the Meridan though it did not happen the FD and structural engineers they consulted feared the floors on fire would undergo progressive collapse that's why the firefighters were pulled. We also have several cases of low rise steel framed buildings collapsing due to fire
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Old 26th September 2010, 03:39 PM   #80
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Originally Posted by Patriots4Truth View Post
"Twin Towers' Rates of Fall Proves It Wasn't Fire (link)

Each of the Twin Towers fell completely in intervals of time similar to that taken for a block of wood dropped from a tower's roof to reach the ground.
No calculation given.

Quote:
A block of wood has about the same average density as the main components of the towers near their tops.
No source.

Quote:
In the air a block of wood, say ten inches on a side, might take 50 percent longer than in a vacuum.
Based on what?

Quote:
Air resistance alone could account for the slowing of the falls to the point where each Tower took about 15 seconds to completely come down.
Incorrect. Please read this paper by Frank Greening, wherein he examines the effect of air resistance on the speed of the WTC collapse. The relevant section is entitled "An Assessment of the Time Delays Involved in the WTC Collapse Events". Air resistance was negligible.

Please do your research before posting things like this.
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