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

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I've used a press and dies to bend.

And how close to the weight of the collapsing towers could you put into that effort? Was this a 100+ ton press? Did you attain temperatures of over 1500 degrees, which can and do occur in normal building fires?

Have you ever used a torch to heat and bend steel?

Have you ever built a small forge with forced air and charcoal trying to heat steel enough to bend it or form it.

Admittedly, no. My knowledge of such processes has been gained solely from researching the available information. Nevertheless, conditions in the towers were more than suitable to soften, bend, and even break steel. A 1300-ft lenght of steel, consisting of numerable members bound together, suffering extreme conditions of heat and unexpected, dynamic stress, without suitable cross-supports, could easily shatter into sections.

You've posted a few pics of steel beams which were most likely seen after cutting had begun for cleanup operations. Do you have pics of all the available steel? Do you have solid evidence that all of the alleged structural steel suffered identical more-than-perfect cuts, which you have claimed, and that no steel in the wreckage was warped, twisted, broken, or bent?

That's a significant request, one I don't expect anyone can fulfill. But a couple of pics of a couple of beams that happen to support one of your theories is insufficient evidence, Chris.

Having seen other steel structures collapse as a result of intense fires, I definitely would not expect 47 1300-ft long steel beams to stand while thousands of tons of matter falls around them. Why you do is beyond my understanding.
 
Ok, if we're going to be sensible and focussed and the usual monkey brains aren't going to keep chipping in with their inane contributions I'll kick off...

Free fall means falling ONLY under the influence of gravity with no other forces being involved. In this pure state the object will fall at 9.81 metres per second squared regardless of mass. It will continue to accelerate at this rate unless acted upon by any other force.

If anyone wants to come forward with the actual value of g for the New York District we could be more precise but I think 9.81 metres per second squared is an adequate approximation. The actual value for New York is 9.802 metres per second so the time to free fall would actually be 9.158 seconds.

If you were to take a weight and drop it in a vacuum from the height of the roof of the WTC at 411 metres from the ground then it will take 9.15 seconds to hit the ground.

Those are facts and a suitable benchmark to start from.

How can we establish how long it took the tower to fall from the point at which near free fall conditions occurred, anyone want to chip in with the video evidence?

It would appear that the monkeys aren't able to wind their necks in and will continue with their inane interjections but I'll persevere.

It is important to know if the towers achieved near free fall conditions because it gives an insight into the possibilities of how the collapse proceeded after initiation. If the timing is 9.15 seconds then this implies that the underlying structure offered no resistance to the fall.

We have to keep in mind that 9.15 seconds does not include any natural resistance to falling such as wind resistance. Another factor is that although there is a lot of energy available to accelerate the collapse, this does not imply that all this energy can do useful work.

A timing greater than that expected for free fall implies that the underlying structure of the towers offered some resistance but the real question is how much resistance was there and how much should we have expected? I would intitially define near free fall timing as being a time that is close enough to 9.15 seconds to imply that the forces resisting the collapse were not as substantial as might be expected. I will not start to do any further analysis until you guys have established a definitive time for the collapse as defined below...

Taking into account the New York local variation for g I have told you what the timing is for a free fall from initiation to the top of the tower hitting the ground (9.15 seconds). Could all you pseudo-skeptics (aka political bloggers) tell me what the total time for collapse was from intitiation of the top of the tower falling to completion of the fall?

For future reference...

Potential Energy (PE) = mass x g x height (mgh)
Kinetic Energy (KE) = 0.5 x mass x velocity squared (0.5mv^2)

PE is a potential difference of energy based states upon an arbitrary frame of reference. The Earth's surface is generally considered the zero PE point despite the fact that the gravity acts between the centres of masses.
 
I think I've replied 5 times now. The obsufucators are proficient.

Here is an image of a piece of the top of WTC 2 concrete core hitting WTC 3. The roof is highlighted with lines. This image is larger and the core is more easily identified.

I showed you raw evidence of the top of the south tower falling to the east. You still have not explained how some 30 floors of that tower fell one way, turned and then fell the other way.

btw, the picture you posts shows big pieces of the EXTERIOR COLUMNS falling down.
 
And how close to the weight of the collapsing towers could you put into that effort? Was this a 100+ ton press? Did you attain temperatures of over 1500 degrees, which can and do occur in normal building fires?

Those temperatures are not ambient throughout the fire and are only attained in a few places for a short period. The number is more accurately expressed "parts to attain" termpertures up to 1500F.

Admittedly, no. My knowledge of such processes has been gained solely from researching the available information. Nevertheless, conditions in the towers were more than suitable to soften, bend, and even break steel. A 1300-ft lenght of steel, consisting of numerable members bound together, suffering extreme conditions of heat and unexpected, dynamic stress, without suitable cross-supports, could easily shatter into sections.

You've posted a few pics of steel beams which were most likely seen after cutting had begun for cleanup operations. Do you have pics of all the available steel? Do you have solid evidence that all of the alleged structural steel suffered identical more-than-perfect cuts, which you have claimed, and that no steel in the wreckage was warped, twisted, broken, or bent?

That's a significant request, one I don't expect anyone can fulfill. But a couple of pics of a couple of beams that happen to support one of your theories is insufficient evidence, Chris.

Having seen other steel structures collapse as a result of intense fires, I definitely would not expect 47 1300-ft long steel beams to stand while thousands of tons of matter falls around them. Why you do is beyond my understanding.

Those extra pictures you say should be posted but not by me. They were posted to show "core columns". There was one in particular. An aerial, I think homer posted it. I immediately commented that the cut columns were not box columns and of course homre can produce no images of the columns in situ at some elevation above ground. But the most striking thing was that there was enough reolution to show that virtually all of the column pieces had square cut ends.

Generally, in this type of discussion, it is assumed a person has familiarity with the images of the event, 9-11, and knows what images are out there and does not argue points that can be refuted easily. Generally people have their pet theory and have perused all the images to find ones that support their theory.

What happens most of the time, and I'm generalizing here to typify the 9-11 exchange process, is that the person gets so involved that they sort of forget that such and such image exists and shows something contrary to what they've come to believe, and another poster has to remind them that there are images that show something that contradicts there position irrefutably. When that poster is reminded, and if they are sincere in seeking the truth, they change their mind. Their perspective is modified.

When this does not occur something is wrong. The person is not being reasonable, they are not using the evidence.

Meaning, ........... that you've been here all along, you've seen the images. If you do not scrutinize them to note everything distinct that is to be seen, then it is your responsibility to use the available information and go find them. They are about 15 pages back and posted perhaps 3 times.

As far as the columns standing.

No, they would not stand at 1300 feet, but they could not be cut within what was seen and heard so they would be there exposed. Under the conditions very long columns would be seen leaning, bending, falling. They will snap but they bend first under most conditions of collapse.

Most of the bent and broken steel seen is perimeter column not interior box column.

btw, there has been a discussion on cutting of columns on site and no one here seemed familiar enough to even suggest viable cutting methods (all too expensive for salavege) so I had to provide the information. There was no rebuttals. Perhaps 10 pages back. You will see a stack of columns with clean cut ends a few times and the image I use that shows explosive shear and a torch cut.
 
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I showed you raw evidence of the top of the south tower falling to the east. You still have not explained how some 30 floors of that tower fell one way, turned and then fell the other way.

btw, the picture you posts shows big pieces of the EXTERIOR COLUMNS falling down.

Yes there are large assemblies of panels in the image. But inside, right where I would expect it is the concrete core.

There is some explanation here.
http://algoxy.com/psych/9-11scenario.html#anchor1152280

Below we see a very large floppy segment of perimeter column falling ahead of the piece of the top and core. In order for the top to fall off thw body of the tower while the body is leaning in the earlier images posted, a large piece of the perimeter wall on the west would have to be taken out BELOW the top causing it to tilt independant of the body shown in the photo taken from the east. That piece of wall would begin to fall first and would land first. The image below shows a part of that wall removed to gain the radical tilt required to get the piece of the top seen to fall west.

Demolitions, delays and the explosive circuits present in the floors and core are capable of this.

http://www.internationalskeptics.com/forums/attachment.php?attachmentid=4262&stc=1&d=1164564832
 

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I saw the documentary in 1990 which has been stated maybe 15 times in the last 40 pages.

Too bad the documentary got the core wrong, now you are the only person in the world with a concrete core because idiots researched it wrong.

Now they know they are wrong leaving you the only wrong person in the world!

The only one, you are it! good job
 
Chris, you have forced almost 8500 posts for an untenable position.

Bravo

If what you say was true, then images of the supposed steel core columns from the demo at some elevation off the ground would have been posted somewhere in the last 200+ pages. No such images have been posted.

Meaning that the unreasonableness of the deniers of the concrete core and those without feasible, realistic, comprehensive explanations for rates of fall near that of free fall are responsible for FORCING 8500 posts, not I.

I simply support a reasonable and well evidenced "scenario" for free fall and pulverization.

http://algoxy.com/psych/9-11scenario.html
 
Too bad the documentary got the core wrong, now you are the only person in the world with a concrete core because idiots researched it wrong.

Now they know they are wrong leaving you the only wrong person in the world!

The only one, you are it! good job

Too bad those sneaky architects and contractors got together and built a model of new york to do a fake construction of the Twin Towers in so the thousands of still and hundreds of reels of 16mm film could be created then left convienently where those gullible videograpers would find it and believe the towers were built with a steel reinforced, tubular cast concrete core.

I wonder why the steel core columns NEVER show up in the images of the demo of the real towers?

http://algoxy.com/conc/core.html
 
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Yes there are large assemblies of panels in the image. But inside, right where I would expect it is the concrete core.

There is some explanation here.
http://algoxy.com/psych/9-11scenario.html#anchor1152280

Below we see a very large floppy segment of perimeter column falling ahead of the piece of the top and core. In order for the top to fall off thw body of the tower while the body is leaning in the earlier images posted, a large piece of the perimeter wall on the west would have to be taken out BELOW the top causing it to tilt independant of the body shown in the photo taken from the east. That piece of wall would begin to fall first and would land first. The image below shows a part of that wall removed to gain the radical tilt required to get the piece of the top seen to fall west.

Demolitions, delays and the explosive circuits present in the floors and core are capable of this.

http://www.internationalskeptics.com/forums/attachment.php?attachmentid=4262&stc=1&d=1164564832

Making up stuff to explain events that did not happen, doesn't make those events true.

Really Christophera, are you making up all this stuff as you go?
 
Too bad those sneaky architects and contractors got together and built a model of new york to do a fake construction of the Twin Towers in so the thousands of still and hundreds of reels of 16mm film could be created then left convienently where those gullible videograpers would find it and believe the towers were built with a steel reinforced, tubular cast concrete core.

I wonder why the steel core columns NEVER show up in the images of the demo of the real towers?

http://algoxy.com/conc/core.html

So sad you saw a mistake and now are the only one, the only one who can not see the errors and make corrections.

You are the last one to cling to a concrete core. I have proved to others and they have corrected or admitted their mistake.

When will you?
 
I wonder why the steel core columns NEVER show up in the images of the demo of the real towers?

spam removed

try this:-



or this:-

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and this:-

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this:-

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or perhaps this:-

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and there's this:-

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what about this:-

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and last but not least this:-



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BV
 
Sorry, bonavada. Nice try indeed, but I rather suspect Chris will ignore it all.
 
ha, ha, not even after another 8 and a half thousand posts - this is a major pathological obcession we are seeing here.
I'm starting to suspect that pathological obsession lies on both sides here. Chris's mind isn't going to change.
 
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