created by: inquiring minds | Jan 4, 2013

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Was 911 an Inside Job

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4,121 - 4,140 of 4,996 Comments Last updated Jul 8, 2014
Bjork

Iceland

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#4411
May 12, 2013
 

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Rick in Kansas wrote:
<quoted text>You seem to be unaware that when the aircraft impacted the structures, the resulting explosions, venting through elevator, air and other shafts in the building. caused fires on multiple floors, not directly impacted. The flashes of light and puffs of smoke you claim can only be explained by the use of the explosives, can also be explained by the fact that the power was still on to much of the building below the impact when it collapsed and parts of the collapse naturally fell faster than others. Those same shafts that the had fire spread through, would have zero resistance within them when the collapse occurred for debris falling through them and those puffs of smoke, that debris venting out on its way down.
This is a smelly turd from your butt

“ reality, what a concept”

Since: Nov 07

this one

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#4413
May 12, 2013
 
Bjork wrote:
WTC7 was not hit by a plane and fell all at once at free fall rate. A controlled building implosion, very hard to do!
It was not struck by an aircraft, it was however struck by the explosion of an aircraft into a building directly across the street from it and by debris from that building when it collapsed. The building neither fell "all at once", nor at a "free fall rate", to believe that they did, defies observable fact.

“ reality, what a concept”

Since: Nov 07

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#4414
May 12, 2013
 
Bjork wrote:
...
The adults are talking again dear. If your mommy and daddy need a baby sitter for you, have them get in touch with us, they shouldn't just drop you off here unattended.
Charlie Sheen

Lincoln, NE

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#4415
May 12, 2013
 
Bjork wrote:
WTC7 was not hit by a plane and fell all at once at free fall rate. A controlled building implosion, very hard to do!
YAWN, Not freefall!
Charlie Sheen

Lincoln, NE

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#4416
May 12, 2013
 
Dr_Zorderz wrote:
You're not in Kansas anymore Ricky.
.
I think you meant to say that you CAN NOT debwunk the information I have posted concerning the alleged passengers on the alleged flights of 9/11.
I Totally debunk your claim that 20 pilots could not hit the WTC, prove me wrong!
Charlie Sheen

Lincoln, NE

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#4417
May 12, 2013
 
Werner wrote:
<quoted text>
They were obvious demolitions. You are right, big chunks were being expelled. Horizontally. The powerful horizontal forces necessary to propel multi-ton steel assemblies were provided by explosives.
WRONG!

In order to allow time for lateral motion, the exterior column(s) that hit WFC 3 were most probably from the upper half of WTC 1. A fall from 1,000 feet to 240 feet would take SQR(2*h/g)= around 6.9 seconds where h = 760 feet and g = 32.17 ft/s^2. In the horizontal plane, a uniform acceleration of 20 m/s^2 for the first second followed by negligible deceleration due to drag for the remaining 5.9 seconds would provide 10 +(5.9 * 20)= 128 metres = 420 feet displacement. At 1,000 feet the WTC 1 perimeter columns, per story, were comprised of:

two flanges of 1/2 x 13.5 x 144 inches each, totalling 1,944 ins^3
one outer web of 1/4 x 13 x 144 inches = 468 ins^3
one inner web of 1/4 x 15.75 x 92 inches = 362 ins^3
one spandrel plate of 3/8 x 40 x 52 inches = 780 ins^3

...totalling 3,554 ins^3 per floor or 10,662 ins^3 = 6.17 ft^3 for a three-floor section which at 490 lb/ft^3 is 3,023 lb (84 pounds per lineal foot) or 1,371 kg.(There is some uncertainty as to the flange thickness; it was known to be only 1/4" at the very highest floors.) The force require to produce an acceleration of 20 m/s^2 in an inertia mass of 1,371 kg is 20 * 1371 = 27,420 N = 6,165 lbf.

The cross-section presented to a wind, per floor, would be 40 x 52 = 2,080 ins^2 for the spandrel plate and 15.75 x 92 = 1,449 ins^2 for the inner web, totalling 3,529 ins^2 per floor or 10,587 ins^2 = 6.83 m^2 for a three-story section of exterior column.(So the required pressure is well under 1 psi.) From the drag equation of

d = Cd * A * r * 0.5 * v^2

we obtain

v = SQR(2 * d /(Cd * A * r))

where r = density of air ~ 1.2 kg/m^3 and assuming a relatively high drag coefficient Cd of 4 / pi ~ 1.27 for a flat plate and d = the previously calculated force of 27,420 N and A = 6.83 m^2 as calculated above. This places the required wind at 72.6 m/s = 162 mph for one second duration. Actual windspeed on the day was up to 10 mph on the ground and up to 20 mph at higher altitude.

Suppose we imagine the collapse initiating at 1,200 feet, and proceeding as per the "pancaking" theory to 1,000 feet. After freely falling 200 feet, the terminal velocity would be SQR(2 * 200 * 32.17 ft/s^2)= 113.4 fps = 77.3 mph. In this theory, there is a small delay due to resistance of the intact building below, but the falling upper section smashes its way through each floor in about 0.1 seconds at the 1,000 feet level. The volume of air per floor is approximately 12 * 200 * 200 feet = 480,000 ft^3. Some will go down, but if the total was forced out through a perimeter of 800 feet by an average height of 6 feet which is an exiting area of 4,800 ft^2, it would (continuing outward) extend for some 100 feet at the end of the 0.1 seconds which is a velocity of 1,000 fps or 682 mph.

Let's set the exiting gases velocity at just 700 fps = 213 m/s, in which case the force acting on the exterior column for 0.1 seconds is given by:

d = Cd * A * r * 0.5 * v^2

= 1.27 * 6.83 * 1.2 * 0.5 * 213^2 ~ 236,000 N

to produce an acceleration of F / m = 236,000 N / 1,371 kg = 172 m/s^2. After 0.1 seconds the velocity of the steel is 17.2 m/s = 38.5 mph, and the horizontal displacement is 0.86 metres. Following another 6.8 seconds at 17.2 m/s the total distance travelled horizontally is 0.86 plus 6.8 * 17.2 ~ 118 metres = 387 feet. The columns have to shear off quickly enough, and the pancaking theory has the problem that the gravitational potential appears to be too low for all the energy sinks, but even this scenario does not appear to rule out the idea that debris could end up a few hundred feet away.

“DECEPTION = MOST POWERFUL ”

Since: Jul 11

POLITICAL FORCE ON THE PLANET

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#4418
May 12, 2013
 

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What a bunch of bwunk!?!?!? LOL
Charlie Sheen

Lincoln, NE

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#4419
May 12, 2013
 
Dr_Zorderz wrote:
What a bunch of bwunk!?!?!? LOL
I so agree!

I Totally debunk your claim that 20 pilots could not hit the WTC, prove me wrong!

Since: May 13

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#4420
May 12, 2013
 

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helter skelter in the summer swelter, the birds flew off from the fallout shelter, eight miles high and falling fast
Isabelle

Shreveport, LA

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#4421
May 12, 2013
 
Charlie Sheen wrote:
...The columns have to shear off quickly enough, and the pancaking theory has the problem that the gravitational potential appears to be too low for all the energy sinks, but even this scenario does not appear to rule out the idea that debris could end up a few hundred feet away.
This last part makes your previous calculations worthless. The "sheering of columns" and spandrel plates is a massive energy sink, and there was lots of "sheering" going on in every direction, even in the free-falling upper block, where there shouldn't be any "sheering" at all!!
Charlie Sheen

Lincoln, NE

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#4423
May 12, 2013
 
Isabelle wrote:
This last part makes your previous calculations worthless. The "sheering of columns" and spandrel plates is a massive energy sink, and there was lots of "sheering" going on in every direction, even in the free-falling upper block, where there shouldn't be any "sheering" at all!!
Sure, Show your math!

WOW, Pre-collapse sheering! Just add collapse and wind drag to the dangling aluminum.

http://www.911myths.com/assets/images/WTC_Fac...

PS: Could you twoofers make up your mind, did it fall in it's own footprint or not?

“ reality, what a concept”

Since: Nov 07

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#4424
May 12, 2013
 
Why "shouldn't" there be any sheering at all in the upper portions of the structure? They weren't falling intact, but collapsing themselves as they fell. The structure at the bottom couldn't support the weight now coming down on it, the upper part of the structure was itself collapsing, even as it collapsed onto the lower portion of the building. The sheering seen in the lower structure occurring in the upper portion of the building doesn't strike me as being as near as impossible as you claim it to be, especially without any sort of evidence to back your claim. At least you tried.

Since: May 13

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#4426
May 12, 2013
 

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Hey what about my reply, I said that most people do not want to know the truth

okay? I also said that is a true comment in itself....

meaning that most people do not want to know the truth, is also the truth.

the admins or some automatic bullshirt moderating topix does a sucky job of deleting things it thinks are spam that still can be things real people really post

Since: Apr 13

At Melloul, Morocco

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#4427
May 12, 2013
 

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For many it is difficult to stay happy and focused at work. This is because not a lot of people are enjoying what they are really doing. The problem is while you may never enjoy your work, you need compensation for your basic needs. This is the reason why you must learn how to find the right focus and inspiration to become and stay happy at work...More http://1topsuccess.blogspot.com/2013/04/how-t...
Charlie Sheen

Lincoln, NE

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#4428
May 12, 2013
 

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Myrandy Cumgrove wrote:
Hey what about my reply, I said that most people do not want to know the truth
okay? I also said that is a true comment in itself....
meaning that most people do not want to know the truth, is also the truth.
the admins or some automatic bullshirt moderating topix does a sucky job of deleting things it thinks are spam that still can be things real people really post
Ahh, Perhaps your random trolling and senselessness generalizations left you confused.

Wrong Board.

http://www.topix.com/forum/topstories/TSBMT04...

Since: May 13

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#4429
May 12, 2013
 

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hey mounir438 I can hook you up with some penis pills

Since: Apr 13

At Melloul, Morocco

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#4430
May 12, 2013
 
Why?

Since: May 13

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#4431
May 12, 2013
 

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you seemed like a spam bot to me, that is why I made a joke

Since: Apr 13

At Melloul, Morocco

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#4432
May 12, 2013
 
OK freind

Since: May 13

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#4433
May 12, 2013
 

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Charlie Sheen wrote:
<quoted text>
Ahh, Perhaps your random trolling and senselessness generalizations left you confused.
Wrong Board.
http://www.topix.com/forum/topstories/TSBMT04...
stuff it, chuckles!

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