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WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 2:52 am

hecter wrote:Then please explain the bowing found on the side of the building.

The side of which building?

“The buildings have been investigated and found to be safe in an assumed collision with a large jet airliner [Boeing 707-DC 8] traveling at 600 miles per hour. Analysis indicates that such collision would result in only local damage which could not cause collapse or substantial damage to the building and would not endanger the lives and safety of occupants not in the immediate area of impact.“
“Our analysis indicated the biggest problem would be the fact that all the jet fuel would dump into the building. (But) the building structure would still be there.”

Each tower contained:
• Over 90,000 tons of concrete;
• 47 Massive Steel Core Columns and
• 240 Steel Perimeter Columns welded together and connected by hundreds of steel joints, perpendicular cross trusses, thousands of large steel bolts and concrete-filled steel floor decking at each floor level;
• 100,000 Ton Heat Sink to absorb excess heat;
• Updated fireproofing and a fire control system designed to prevent “chimney effect” and suffocate fires by depriving them of oxygen.


4. Structural steel begins to melt at 1510 degrees Celsius (2750 degrees Fahrenheit) and only if that temperature is maintained over a long period of time. Burning jet fuel can only reach temperatures of 1120 degrees Celsius and decreases in temperature if the fuel feeding it is being depleted (as was the case in the Twin Towers). Therefore, the temperature from the burning jet fuel (commonly cited as the reason for weakening the structure) could not possibly have melted the steel-reinforced columns.

The actual temperatures of the WTC fires were only 650 degrees Celsius (1200 degrees Fahrenheit) which is dramatically insufficient to melt steel. Thermite (the incendiary explosive of which there was evidence at Ground Zero), however, typically reaches 2500 degrees Celsius (4500 degrees Fahrenheit).

“The fire is the most misunderstood part of the WTC collapse. Even today, the media report (and many scientists believe) that the steel melted. It is argued that the jet fuel burns very hot, especially with so much fuel present. This is not true.

Part of the problem is that people (including engineers) often confuse temperature and heat. While they are related, they are not the same. Thermodynamically, the heat contained in a material is related to the temperature through the heat capacity and the density (or mass). Temperature is defined as an intensive property, meaning that it does not vary with the quantity of material, while the heat is an extensive property, which does vary with the amount of material. One way to distinguish the two is to note that if a second log is added to the fireplace, the temperature does not double; it stays roughly the same, but the size of the fire or the length of time the fire burns, or a combination of the two, doubles. Thus, the fact that there were 90,000 L of jet fuel on a few floors of the WTC does not mean that this was an unusually hot fire. The temperature of the fire at the WTC was not unusual, and it was most definitely not capable of melting steel.” (Eager & Musso, 2001)

• F.D.N.Y reported “two isolated pockets of fire” near the impact zone in the South Tower.
• F.D.N.Y. also reported that it would only take two fire lines to extinguish the fires in the South Tower.

• The fires were compartmentalized and contained. The structure sustained the impact and sealed off the fires from expanding, just as it was designed to do:
“In fact, the Towers did what they were built to do.”
• FEMA conceded that the jet fuel was totally consumed within the first few minutes after impact.
• Yet FEMA would have us believe that:

“This was somehow enough to bring down the Tower’s 47-steel-column core, 236 exterior columns, and thousands of steel trusses, all at the same time.”

“In order for a floor to fall, hundreds of joints had to break almost simultaneously on 236 exterior columns and 47 core columns.”

As Professor Steven Jones notes, the official notion that Building 7 at the WTC collapsed as a result of fire is in violation of the Second Law of Thermodynamics. Buildings collapsing as a result of fire simply topple over – they do not collapse symmetrically into their own footprint.

• “High-rise buildings do not collapse due to fire, even after their fireproofing has performed its usefulness after a couple of hours.”
• Twin Towers’ destruction exhibited all the characteristics of destruction by explosions:
• Extremely rapid onset of “collapse”
• Sounds of explosions and flashes of light witnessed near the beginning of the “collapse” by over 100 first responders
• “Squibs” (focused explosions) 40 floors below the “collapsing” building seen in all the videos
• Mid-air pulverization of 90,000 tons of concrete and steel decking, filing cabinets & 1000 people – mostly to dust
• Massive volume of expanding pyroclastic dust clouds
• Vertical progression of full building perimeter demolition waves
• Symmetrical collapse – through the path of greatest resistance – at nearly free-fall speed — the columns gave no resistance
• 1,400 foot diameter field of equally distributed debris – outside of building footprint
• Blast waves blew out windows in buildings 400 feet away
• Lateral ejection of thousands of individual 4 - 20 ton steel beams up to 500 feet
• Total destruction of the building down to individual structural steel elements – obliterating the steel core structure
Tons of molten metal found by FDNY and numerous other experts under all 3 high-rises “like lava from a volcano.” Streams of “molten metal which was still red-hot weeks after the event.” “Firemen sprayed water to cool the debris but the heat remained intense enough at the surface to melt their boots.” The fire was not completely extinguished until over 3 months after 9/11.

“Molten iron is the product of the incendiary Thermite, a cutter charge which is used in many controlled demolitions. There is no other conceivable source of molten metal found at the base of World Trade Center 7. Hydrocarbon fires burn 1700 degrees maximum. Molten metal, molten iron in this case, and most all molten metals burn- they need 2700 degrees to create them. We’re missing a 1000 degrees of energy, of temperature.”

• FEMA finds rapid oxidation and intergranular melting on structural steel samples• More than 1000 Bodies are unaccounted for — 700 tiny bone fragments found on top of nearby buildings
• Chemical signature of Thermate (high tech incendiary) found in slag, solidified molten metal, and dust samples by Physics Professor Steven Jones, Ph.D.
• Examination of the forensic metallurgy of WTC steel “reveal a phenomenon never before observed in building fires: eutectic reactions, which caused ‘intergranular melting capable of [b]turning a solid steel girder into Swiss cheese.’”[/b]
• Building 7 was typical of a classic demolition: “An implosion causing a vertical collapse at free-fall speed into a consolidated rubble pile.” WTC 7 was “straight-down symmetrical into its own footprint.

The only thing that can cause this is if all of the perimeter columns, in this case 81 of them, and 24 core columns, are cut at once. In fact, to bring the penthouse down, you have to cut the interior just a fraction of a second prior to the exterior, again which causes the exterior walls to fall, straight down rapidly. In this case, 6.5 seconds.” “The penthouse falling first is a telltale sign of demolition.”
• There is expert corroboration. The top European controlled demolitions expert confirms that WTC 7 was a controlled demolition. 27-year controlled demolitions expert Danny Jowenko states: “This is controlled demolition…it starts from below.” “They have simply blown away columns…A team of experts did this…This is professional work, without any doubt.”

“Once you get to the science, it’s indisputable. At Building 7, a 47-story skyscraper, not hit by an airplane on 9/11, it fell symmetrically, smoothly, at virtually freefall speed, into its own footprint – a perfect controlled demolition. There’s only graphic evidence for 2 or 3 fires in that building; 5th and 12th and maybe 13th floor. The official story tells us that the steel was softened. But if that was the case and this building fell due to fires, the fires, by their nature, creep from place to place leaving one area cool and burning another area. That would force an asymmetrical collapse. The building would tip over. So for the first time in history, fires have done what only a handful of demolition companies are capable of doing.”
-Richard Gage


Fire Protection Engineer Edward Munyak, P.E., Registered Mechanical and Fire Protection Engineer in the State of California currently employed as Fire Protection Engineer for the City of San Jose, California:

“I have collaborated with a research chemical engineer ( P.E. in CA also) and he has worked with NIST reports that positively show that the jet fuel contributed very little to the duration of the fires and that in fact all the fires were very weak in historical perspective. They were oxygen starved as evidenced by the black smoke. If you dig deeper into the NIST reports they confirm that steel temperatures were low.”

“My presentation showed that all three WTC “collapses” have no resemblance to any previous high rise fire, full scale fire tests in the UK involving much higher steel temperatures, or computer simulations using finite element analysis.”

“All three collapses were very uniform in nature. Natural collapses due to unplanned events are not uniform.”

15. Steven E. Jones, Ph.D. is a former Professor of Physics from Brigham Young University who resigned in order to research the events of 9/11 full-time. Dr. Jones conducted tests of debris samples from Ground Zero and determined the presence of thermate. Thermate, which is actually thermite strengthened with sulfur, is the state-of-the-art choice for building demolitions. Use of thermate also creates a distinct and traceable signature, much like a fingerprint at a crime scene. The scientific analysis of those samples conclusively identified a “Thermate signature” at Ground Zero.

a. Evidence that Twin Towers were brought down through the use of pre-positioned cutter-charges that employed high-tech explosives, not by impact damage and fires.

b. Analysis of the debris samples also determined the presence of significant amounts of manganese, iron and sulfur, which are a scientific fingerprint of the aftermath of the use of Thermate.

c. Use of the extremely hot-burning explosive incendiary Thermate also leaves a “heat signature.” The inability to reduce the temperature of the debris was the result of thermate use and could not have been from fire, which would have quickly cooled. The debris at Ground Zero literally kept burning for weeks, defying extensive attempts to cool its heat. Thermate burns so hot that it will cut and melt steel beams—fire is incapable of doing so. This was evidenced by:

Orange-to-red-hot pieces of molten metal were visible in the debris.

Infrared satellite photos taken weeks after the collapses still reveal hotspots in excess of 1000 degrees Fahrenheit.

Six weeks after collapse, Ground Zero debris was still hot enough to literally melt the boots of workers after short exposure to its heat. (Note: From video clip with Silverstein and DeMartini; cite below)

d. The sulfidation of the steel at Ground Zero is another characteristic that is concomitant with the use of thermate.

e. Evidence of molten metal; flowing and in pools

f. Observed Temperatures of approximately 1000ºC

g. The symmetric collapse of each building is also distinctively compatible with controlled demolition.

h. Concludes that the scientific evidence clearly refutes the official positions of FEMA, NIST, and 9-11 Commission reports that fires plus impact damage alone caused complete collapses of all three buildings.

Also see the scientific documentation of Kevin Ryan:
The Top Ten Connections Between NIST and Nano-Thermites, July 2008
More Evidence for Energetic Materials, May 2008
High Velocity Bursts of Debris From Point-Like Sources in the WTC Towers, July 2007 (pdf)
Also see:
http://74.125.45.104/search?q=cache:hpn ... =clnk&cd=1

and: http://www.wtc7.net/articles/stevenjones_b7.html

• Conditions inconsistent with typical building fires but consistent with conditions after buildings are destroyed by controlled demolition, including the use of Thermite/Thermate (state-of-the-art explosives used in building demolition) and concomitant materials and conditions consistent with a Thermite fingerprint.

• Large pools of molten metal were observed in the basement areas of both towers and Building 7. Evidence of molten metal and explosions accompanied by white dust clouds are products of the Thermite reaction.

• Extremely high temperatures in the fires at the WTC which are indicative of Thermate/Thermite explosions that burn markedly hotter than typical fires.

• The fireproofing in the buildings had been updated prior to 9/11 and was more than sufficient to contain fires much larger than those present.

• Extremely high levels of volatile organic chemicals as well as unusual species never before seen in structure fires.

• Very atypical debris. For months after the destruction at the World Trade Center (WTC) on 11th September, 2001, the fires at Ground Zero could not be put out, despite the following facts:

• Several inches of dust covered the entire area after the
destruction of the WTC buildings.

• Millions of gallons of water were sprayed onto the
debris pile.

• Several rainfall events occurred at GZ, some heavy;

• A chemical fire suppressant called Pyrocool was
pumped into the piles (Lipton and Revkin 2001).


“The characteristics of these un-extinguishable fires have
not been adequately explained as the results of a normal
structure fire, even one accelerated by jet fuel. Conversely,
such fires are better explained given the presence of
chemical energetic materials, which provide their own fuel
and oxidant and are not deterred by water, dust, or chemical suppressants.”
(Kevin R. Ryan Æ & James R. Gourley Æ & Steven E. Jones; 2008)
See the scientific documentation by Kevin Ryan: Extremely High Temperatures During the World Trade Center Destruction, January 2008
Environmental Anomalies at the World Trade Center: Evidence for Energetic Materials, August 2008
More Evidence for Energetic Materials, May 2008
Kevin Ryan was the Manager of Environmental Health Laboratories, a division of Underwriters Laboratories. After publicly questioning the inconsistencies he identified in the official government report on the causes of the building collapses at the World Trade Center, Kevin Ryan was promptly fired as Manager. (Legal Defense Fund For Kevin Ryan: http://www.ultruth.com/)

Excerpts from Ryan’s letter (UL is Underwriters Laboratories, the company that certified the steel components used in the construction of the World Trade Center):

 Testing by UL determined “that the buildings should have easily withstood the thermal stress caused by pools of burning jet fuel.”

 “We know that the steel components were certified to ASTM E119. The time temperature curves for this standard require the samples to be exposed to temperatures around 2000F for several hours. And as we all agree, the steel applied met those specifications. Additionally, I think we can all agree that even un-fireproofed steel will not melt until reaching red-hot temperatures of nearly 3000F.”

 “The results of your recently published metallurgical tests seem to clear things up, and support your team’s August 2003 update as detailed by the Associated Press, in which you were ready to ‘rule out weak steel as a contributing factor in the collapse.’ The evaluation of paint deformation and spheroidization seem very straightforward, and you noted that the samples available were adequate for the investigation. Your comments suggest that the steel was probably exposed to temperatures of only about 500F (250C), which is what one might expect from a thermodynamic analysis of the situation.

However the summary of the new NIST report seems to ignore your findings, as it suggests that these low temperatures caused exposed bits of the building’s steel core to ‘soften and buckle.’ Additionally this summary states that the perimeter columns softened, yet your findings make clear that ‘most perimeter panels (157 of 160) saw no temperature above 250C.’ To soften steel for the purposes of forging, normally temperatures need to be above 1100C. However, this new summary report suggests that much lower temperatures would be able to not only soften the steel in a matter of minutes, but lead to rapid structural collapse.”

 “This story just does not add up. If steel from those buildings did soften or melt, I’m sure we can all agree that this was certainly not due to jet fuel fires of any kind, let alone the briefly burning fires in those towers.”

Test models of the WTC steel were tested by UL and those test models did not fail at temperatures much higher than those from the fires of 9/11. Ryan concluded:

• The temperatures were far too low to soften the steel.

• The floors could not have collapsed from the impact and fires.

• Up-to-date fireproofing had recently been installed in the Twin Towers:

“After the 1993 bombing, the fireproofing in both buildings was updated considerably.”

• The impact from a Boeing 767 could not have widely dislodged the fireproofing under any impact, let alone dislodge the fireproofing so far away from the point of impact.


17. In another peer-reviewed study, it was determined that seismic activity clearly identified explosions separate from the jetliner impacts:

“On September 11, 2001, the seismic stations grouped around New York City recorded seismic events from the WTC site, two of which occurred immediately prior to the aircraft impacts upon the Twin Towers. Because these seismic events preceded the collisions, it is clear they were not associated with the impacts and must therefore be associated with some other occurrence. None of the authorities charged with the responsibility for the investigation of the events of 9/11 have proposed a source for these seismic events, nor have they given a valid reason for the difference in times between the seismic events and the aircraft impacts. Only by consideration of the evidence of
basement explosions before the aircraft impacts, as experienced by William Rodriquez and 36 others, can an explanation be found for the fact that the seismic stations recorded seismic events originating from the WTC sites prior to the aircraft impacts.”

“This is neither theory nor hypothesis, but a statement of publicized facts regarding the timing of the aircraft impacts. There exist two separate precision data time sets that address when the aircraft crashed into the Towers. Both data time sets are based on UTC (Coordinated Universal Time, the world’s atomic clock system) and the sources that determined these times were prestigious, reliable and credible. There is no question regarding the precision and accuracy of the instruments used to record both data time sets, since their entire function depends and relies upon temporal accuracy, and therefore there can be no doubt that both data time sets are correct. The time data sets represent objective scientific data recorded by two separate, independent entities. The problem is the data sets have different impact times.”

CONCLUSION:

“Because these signals preceded the impacts there can be no doubt that the seismic signals recorded were not those associated with the aircraft impacts on the Towers. These signals were in fact the seismic spikes associated with the huge basement explosions reported by witnesses.” (Furlong & Ross; 2006)

18. MIT Scientist/Engineer Dr. Jeff King’s scientific study analyzing the WTC Collapse Forensics also determined that:

a. The black smoke in each building signified slow-burning inefficient fires in an oxygen-deprived environment.

b. The 47 Core Columns were hermetically sealed and absent of fuel for the fires. They were intentionally sealed to limit oxygen, prevent “chimney effect” and seal off to stop a fire.

c. The small puffs of smoke emanating from the sides of the buildings as they collapsed were signs of controlled demolition.

d. The immediate formations of large dust clouds as collapse initiated were distinctively compatible with demolition and were not compatible with collapse due to fires.

e. Concrete and other building materials were literally reduced to powder before hitting the ground, which is consistent only with demolition. If a building collapses due to fire or other hazards, concrete and other heavy materials are not reduced to powder.

f. It is noteworthy that there were reports of underground explosions in both towers.

g. Extensive damage visible in the lobby of the building prior to the initiation of collapse is further evidence of controlled demolition.

h. There are clear signs that explosives were used and that is, in fact, the only plausible explanation from the standpoint of the collapse forensics.

Officer Bartmer strongly discounts there being any major damage to Building 7 prior to the series of explosions that he says brought it down:
“I walked around it. I saw a hole. I didn’t see a hole bad enough to knock a building down, though. Yeah there was definitely fire in the building, but I didn’t hear any… I didn’t hear any creaking, or… I didn’t hear any indication that it was going to come down. “
“Yeah it had some damage to it, but nothing like what they’re saying… Nothing to account for what we saw… I am shocked at the story we’ve heard about it to be quite honest.”


The fires in WTC 7 were apparently the result of strewn debris from the Twin Towers. They were isolated fires and reportedly the sprinkler system, had it been working, should have extinguished them.

a. Since steel only melts at temperatures above 2700 degrees and building fires can only reach a maximum of 1700 degrees, the fires in WTC 7 clearly never reached temperatures high enough to threaten the structural integrity of the building.

b. A dip in the roof line of the building as collapse initiates is clearly visible in the videos of Building 7 on 9/11. A dip in roof line is a trademark of controlled demolition.

“During the last four decades, other towers in New York, Philadelphia and Los Angeles have remained standing through catastrophic blazes that burned out of control for hours because of malfunctioning or nonexistent sprinkler systems. But 7 World Trade Center, which was not struck by a plane, is the first skyscraper in modern times to collapse primarily as a result of a fire. Adding to the suspicion is the fact that in the rush to clean up the site, almost all of the steel remains of the tower were disposed of, leaving investigators in later years with little forensic evidence.”


None ever came. Instead, the fires at WTC7 were blamed on falling debris from the North Tower. This sounds logical until you actually start to think about it. In order for the (mostly) cold detritus of the North Tower to start a blaze in Building Seven, it would have to clear both Vesey Street and the very substantial WTC6 and break down the front wall. Well, okay, maybe that’s not impossible. But if it had happened that way, you couldn’t have predicted what came next.


The building as designed is sixteen times stiffer than a conventional structure. The design concept is so sound that the structural engineer has been able to be ultra-conservative in his design without adversely affecting the economics of the structure”
“The structural analysis carried out by the firm of Worthington, Skilling, Helle & Jackson is the most complete and detailed of any ever made for any building structure. The preliminary calculations alone cover 1,200 pages and involved over 100 detailed drawings.”

NO, the steel did not get hot enough to loose loadbearing capacity!

Do some research instead assuming you know everything or regurgitating the same debunker statements that are debunked again and again...

The WTC has a safety ratio somewhere in the ballpark of 200:1. Even if it lost half its strength, it still has a 100:1 safety ratio BEFORE the steel is actually loaded to its max capacity.

I think you'll find that steel loses 2 thirds of its tensile strength at about 500 c more that enough to cause collape also when steel RSJ's heat up they expand pushing out walls and supports
NO!! At 500C it only looses 1/4 of its tensile strength! At 600C it typically looses about 55%. And even if the building had lost 75% of its 200:1 safety ratio it still has a 50:1 ratio, that is NOT enough to increase the load past maximum load bearing capacity.
The WTC had sooooo many redundancies that even it half of the columns and beams were severed it wouldnt matter!

....


Fire Engineering Magazine determined that no large steel-reinforced building has ever collapsed as a result of fire. Fire Engineering also concluded that the investigation of 9/11 was “a half-baked farce that may already have been commandeered by political forces whose primary interests, to put it mildly, lie far afield of full disclosure.” See $elling Out The Investigation; Bill Manning, Editor-in-Chief, Fire Engineering;
http://www.fireengineering.com/articles ... ?id=131225


4. The temperature at which steel begins to melt is 1510 degrees Celsius or 2750 degrees Fahrenheit. That temperature or higher must then be maintained for hours before steel beams become molten steel.



The black smoke emanating from the buildings was a clear indication that the fires were oxygen-starved and that they could not possibly have reached the maximum temperature of burning jet fuel. The highest temperature of burning jet fuel is at least 700 degrees Fahrenheit shy from the temperature at which steel even begins to melt.

Kevin Ryan also thoroughly demolishes NIST’s later claim that “dislodged fireproofing” was the cause of the WTC collapse:

“We now know that US Government scientists were not able to produce evidence for ‘widely dislodged’ fireproofing within the World Trade Center towers on 9/11. Because of this, the distinction between the fire-based hypothesis of collapse and the demolition hypothesis centers on one question. Were the steel assemblies used to construct those buildings tested for fire resistance as required by the New York City code?

As I have stated many times in public, UL made it clear to me and others that they performed this testing. Of course I have their statements on the subject in writing, and I would have been a fool to have made such claims publicly without possessing such documentation.”
(Kevin Ryan; Letter to Frank Gayle, National Institute of Standards and Technology (NIST) from Kevin Ryan, Site Manager, Environmental Health Laboratories, A Division of Underwriters Laboratories; November 11, 2004)

19. Even FEMA conceded that:

“The specifics of the fires in WTC 7 and how they caused the building to collapse remain unknown.”

15. Days later, NASA infrared satellite images identified hotspots in the debris exceeding 1300 degrees Fahrenheit.


Francis Albert (Frank) De Martini was a true 9/11 hero in addition to being an architect and the WTC Construction Manager. He was working in his office on the 88th floor of the North Tower when it was struck on 9/11. He died when the building collapsed – but not before helping over 50 other people escape safely:
http://www.youtube.com/watch?v=bDGInaB0eQM
http://www.historycommons.org/entity.js ... _martini_1
http://www.9-11heroes.us/v/Francis_Albe ... artini.php


This I think this last one is increadably telling. The guy who built the place had no idea it would collapse.

Do we all agree that the fire could not have burned hot enough to melt, or weaken the steel?
A) there wasn't enough stuff to burn, nor could anything burn hot enough
B) the fires were not visable through the windows indicating that they were small and local
C) the materials the buildings were made out of were made for EXACTLY this scenario
D) black smoke indicates lack of oxygen
E) updated fireproofing
F) the man who built the towers didn't flee
G) firefighters inside the towers report that the fires were small and easily containable
H) fire did not have access to the center supports of the towers/nor were they hot enough
I) NIST's own models failed to collapse
J) fires in the center of the tower would be extinquished from lack of oxygen
K) firefighters inside report that there were no signs that any of the towers would collapse
L) the building isolates local fires to starve them from oxygen

Anyway what I'm saying is that you're exactly right. Why did the metal bow? Why did they find so much molten metal,
especially IN THE BASEMENT? some could have come from the plane, but it could not have been the that hot, or ended up in the basement. Nor would it have burned so hot for so long. Fire stops being hot once their fuel/accelerant is used up.

If we compare the North and South Towers to Building 7, the story makes even less sense. Tower 7 was never hit with a plane, but it also collapsed on it's own footprint at freefall speed? There wasn't even any jet fuel to "weaken" any beams! No steel structure has ever collapsed do to a fire, especially a normal fire. Even FEMA has no idea how it happened. So how do we end up with molten metel and bowed steel in that building too?
And why did they ALL fall straight down so uniformly? If fire weakens steel on one side of a tower, wouldn't you expect the tower to lean that way and then give out on that side? The center of gravity could not remain perfect.
We know that fire could not even dream of weakening the steel in the center of the towers. It was thicker, had an even higher melting point, and was placed in a way that keep out oxygen and prevented it from becoming a fire chimny. So the fires couldn't possably have melted the center support beams. They would have to melt the smaller support beams on the sides of the towers(even though the fire could ever get hot enough!) BUT! If fire can't melt the center beams, why does the footage show the dip in the roofline? It's troubling because a dip in the roofline is not charactoristic of a steel building fire. But it is charactoristic of a controlled demolition, as the support beams are cut out above the bedrock. Those possable supprt beam explosions WERE RECORDED both on film and on seismograph.

Fire does not make any sense. Unfortunitly for me, I can't see metel becoming molten, or staying that way, unless there is another form of fuel. Thermite might just be the only logical conclusion. Especially after you sift through all the witness statements, and facts like the ones I just presented above^. The most important thing, IMO, is that the fires were simply not hot enough. And definitly not hot enough to turn the steel molten for days.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby heavycola on Fri Dec 12, 2008 4:32 am

Therefore, the temperature from the burning jet fuel (commonly cited as the reason for weakening the structure) could not possibly have melted the steel-reinforced columns.


I got thsi far. Thsi is the kind of nonsense that you claimed to have gotten over.

WEAKENING THE STRUCTURE
MELTING THE STRUCTURE

TWO DIFFERENT THINGS ENTIRELY.

OK?
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Iliad on Fri Dec 12, 2008 4:39 am

Juan it's like me boiling some water and stopping when the water is about 80 degrees placing my hand into it and then acting surprised when I get burnt. But it didn't reach 100 degrees! It hadn't boiled yet!

Melting and all the other changes are gradual changes not a program:
If temperature of steel is over x, steel becomes liquid
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby joe cool 360 on Fri Dec 12, 2008 5:27 am

Do we all agree that the fire could not have burned hot enough to melt, or weaken the steel?

Absolutely not.
A) there wasn't enough stuff to burn, nor could anything burn hot enough

Read the NIST report, it was an office building with a ton of plane debris in it, there was plenty to burn, and it did burn hot enough to weaken the steel.
B) the fires were not visable through the windows indicating that they were small and local

The fires were definitely visible through the windows and there was enormous quantities of smoke pouring out of most of the floors of WTC7 and out of the impact zones of WTC1 and 2.
Youtube vid (wtc7) watch?v=Afb7eUHr64U
Look at the NIST report for visual evidence of fires in WTC1 and 2, specifically 1-5
C) the materials the buildings were made out of were made for EXACTLY this scenario

They were made to have a 707 crash into them at low speeds and low on fuel, as a plane would when lost in the fog and looking for a landing strip.
D) black smoke indicates lack of oxygen

So oil well fires and tire fires always lack oxygen? You can't make a judgment on the amount of oxygen getting to a fire based on the color of the smoke.
E) updated fireproofing

updated and dislodged
F) the man who built the towers didn't flee

I'd like to see your source for this
G) firefighters inside the towers report that the fires were small and easily containable

Not quite, they reported they needed two lines, which actually is a great deal of water. In addition, do you know where they were located?
H) fire did not have access to the center supports of the towers/nor were they hot enough

How did you arrive to this conclusion?
I) NIST's own models failed to collapse

What are we talking about here? WTC7 or the towers?
J) fires in the center of the tower would be extinquished from lack of oxygen

Read the NIST report, they go into a great deal of detail about the impact of the airplanes and the subsequent fires.
K) firefighters inside report that there were no signs that any of the towers would collapse

Not true, there are many quotes from firefighters saying that WTC7 was about to collapse
(youtubevid: watch?v=3HLDgjYuRHk) this is one of them, which is why they pulled out about 3 hours before collapse. I'd like to see the quotes about WTC1 and 2.
L) the building isolates local fires to starve them from oxygen

You probably did give a source for this, but your post was so incredibly long, I didn't bother looking, if you gave a source, please cite it again.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 7:23 am

heavycola wrote:I got thsi far. Thsi is the kind of nonsense that you claimed to have gotten over.

Hey, that wasn't me saying that. I am specifically talking about bringing the steel to it's weakening point, yes. I think you'll see that if you read my own talking points.
HOWEVER there were tons of molten steel found at all three towers, including pools IN THE BASEMENTS. Which, the fire could not have ever done. It's just impossable given the scenario. I mean, MOLTEN? In the basement?


Iliad wrote:an it's like me boiling some water and stopping when the water is about 80 degrees placing my hand into it and then acting surprised when I get burnt. But it didn't reach 100 degrees! It hadn't boiled yet!


I fully understand. HOWEVER I do not believe in a million years that the fires could have brought structural steel to it's weakening point. But please let me explain why,
157 out of 160 of the supports were only exposed to heat at 250C. BUT steel has to be heated to about 1100C before it actually becomes malliable. So you see, the fire's heat was not unusual, or threatening to the structure in any way. It never even came close to the steel's weakening point. 250C is nothing!

Now, that does not in any way explain the molten steel, or Iron. To get metel to burn, and be molten, you need temperatures of 2700 degrees! Where then did we get the extra 2450 degrees!?! Plus, this stuff stayed molten for days, so what kept it so hot?!?
15. Days later, NASA infrared satellite images identified hotspots in the debris exceeding 1300 degrees Fahrenheit.

I mean, you get what I'm saying here.

Iliad wrote:Melting and all the other changes are gradual changes not a program:

I believe that this also lends credibility to what I'm asking here. How long did the fires burn at 250C? A few hours? the fact is, the temperature of the fires were nothing unusual and the towers were built to withstand that type of heat easily. There have been towers that have burned for longer than 24hrs without ever falling.
There's also this:
The WTC has a safety ratio somewhere in the ballpark of 200:1. Even if it lost half its strength, it still has a 100:1 safety ratio BEFORE the steel is actually loaded to its max capacity




 Testing by UL determined “that the buildings should have easily withstood the thermal stress caused by pools of burning jet fuel.”

 “We know that the steel components were certified to ASTM E119. The time temperature curves for this standard require the samples to be exposed to temperatures around 2000F for several hours. And as we all agree, the steel applied met those specifications. Additionally, I think we can all agree that even un-fireproofed steel will not melt until reaching red-hot temperatures of nearly 3000F.”

 “The results of your recently published metallurgical tests seem to clear things up, and support your team’s August 2003 update as detailed by the Associated Press, in which you were ready to ‘rule out weak steel as a contributing factor in the collapse.’ The evaluation of paint deformation and spheroidization seem very straightforward, and you noted that the samples available were adequate for the investigation. Your comments suggest that the steel was probably exposed to temperatures of only about 500F (250C), which is what one might expect from a thermodynamic analysis of the situation.

However the summary of the new NIST report seems to ignore your findings, as it suggests that these low temperatures caused exposed bits of the building’s steel core to ‘soften and buckle.’ Additionally this summary states that the perimeter columns softened, yet your findings make clear that ‘most perimeter panels (157 of 160) saw no temperature above 250C.’ To soften steel for the purposes of forging, normally temperatures need to be above 1100C. However, this new summary report suggests that much lower temperatures would be able to not only soften the steel in a matter of minutes, but lead to rapid structural collapse.”




joe cool 360 wrote:Read the NIST report, it was an office building with a ton of plane debris in it, there was plenty to burn, and it did burn hot enough to weaken the steel.

Cotton, paper, wool, wood, paint, plastics, none of this burns hot enough, or lasts for forever. 250C...

joe cool 360 wrote:The fires were definitely visible through the windows and there was enormous quantities of smoke pouring out of most of the floors of WTC7 and out of the impact zones of WTC1 and 2.

There definitly was black smoke. ANd there definitly was fire. But there was no raging inferno. You could not look in any window and see fire. And the fire that was visable was orange. Which again, suggests a "cool burn."


joe cool 360 wrote:They were made to have a 707 crash into them at low speeds and low on fuel, as a plane would when lost in the fog and looking for a landing strip.

Yup, I qouted as much sir! But A few pages back I also placed a qoute about the building being able to sustain multiple hits.
“The buildings have been investigated and found to be safe in an assumed collision with a large jet airliner [Boeing 707-DC 8] traveling at 600 miles per hour. Analysis indicates that such collision would result in only local damage which could not cause collapse or substantial damage to the building and would not endanger the lives and safety of occupants not in the immediate area of impact.“
“Our analysis indicated the biggest problem would be the fact that all the jet fuel would dump into the building. (But) the building structure would still be there.”

Here they are saying that the fuel is more dangerous to the plane. I take it to mean that the fuel is more dangerous to the people inside, but I'm unsure about that.

The building as designed is sixteen times stiffer than a conventional structure. The design concept is so sound that the structural engineer has been able to be ultra-conservative in his design without adversely affecting the economics of the structure”
“The structural analysis carried out by the firm of Worthington, Skilling, Helle & Jackson is the most complete and detailed of any ever made for any building structure. The preliminary calculations alone cover 1,200 pages and involved over 100 detailed drawings.”


joe cool 360 wrote:So oil well fires and tire fires always lack oxygen? You can't make a judgment on the amount of oxygen getting to a fire based on the color of the smoke.

I did not, the New York Fire Department did initially, then later FEMA, Kevin Ryan, Dr. Jeff King, Fire Engineering Magazine... and a few others...

joe cool 360 wrote:updated and dislodged

Careful now,
“We now know that US Government scientists were not able to produce evidence for ‘widely dislodged’ fireproofing within the World Trade Center towers on 9/11. Because of this, the distinction between the fire-based hypothesis of collapse and the demolition hypothesis centers on one question. Were the steel assemblies used to construct those buildings tested for fire resistance as required by the New York City code?

As I have stated many times in public, UL made it clear to me and others that they performed this testing. Of course I have their statements on the subject in writing, and I would have been a fool to have made such claims publicly without possessing such documentation.”
(Kevin Ryan; Letter to Frank Gayle, National Institute of Standards and Technology (NIST) from Kevin Ryan, Site Manager, Environmental Health Laboratories, A Division of Underwriters Laboratories; November 11, 2004)


Now EVEN IF the fireproofng was dislodged, the fire still was not hot enough to hurt the actual structure of the towers. But again, there is no evidence that the fireproofing was dislodged, nor does that even explain how a 250C fire brought down tower 7.

joe cool 360 wrote:F) the man who built the towers didn't flee
I'd like to see your source for this

Francis Albert (Frank) De Martini was a true 9/11 hero in addition to being an architect and the WTC Construction Manager. He was working in his office on the 88th floor of the North Tower when it was struck on 9/11. He died when the building collapsed – but not before helping over 50 other people escape safely:
http://www.youtube.com/watch?v=bDGInaB0eQM
http://www.historycommons.org/entity.js ... _martini_1
http://www.9-11heroes.us/v/Francis_Albe ... artini.php


joe cool 360 wrote:Not quite, they reported they needed two lines, which actually is a great deal of water. In addition, do you know where they were located?

Of course getting the lines would be difficult. But two lines is not a lot of water to cure a raging inferno. Plus, they said that the fires were in two isolated spots. Needing two lines doesn't seem all that unusual to me.


joe cool 360 wrote:H) fire did not have access to the center supports of the towers/nor were they hot enough
How did you arrive to this conclusion?

b. The 47 Core Columns were hermetically sealed and absent of fuel for the fires. They were intentionally sealed to limit oxygen, prevent “chimney effect” and seal off to stop a fire.

They were part of the "tube in tube design," and sorta a seperate part of the structure.

joe cool 360 wrote:I) NIST's own models failed to collapse
What are we talking about here? WTC7 or the towers?

lol, the original models that they ran did not collapse. Then they did the experiments again, using a heat source that did not run out, and stayed constant at the same temperature JET FUEL can burn at. They kept the heat source on the same place on their steel untill they acheived their desired result. So to be very clear, they used a never ending supply of jet fuel in their experiments... which of course, burns hotter than 250C. This is how they decided that jet fuel brought the towers down.
But while I am aware of this, I ave not personally seen or reviewed their tests.
Fire Protection Engineer Edward Munyak, P.E., Registered Mechanical and Fire Protection Engineer in the State of California currently employed as Fire Protection Engineer for the City of San Jose, California:

“I have collaborated with a research chemical engineer ( P.E. in CA also) and he has worked with NIST reports that positively show that the jet fuel contributed very little to the duration of the fires and that in fact all the fires were very weak in historical perspective. They were oxygen starved as evidenced by the black smoke. If you dig deeper into the NIST reports they confirm that steel temperatures were low.”


“My presentation showed that all three WTC “collapses” have no resemblance to any previous high rise fire, full scale fire tests in the UK involving much higher steel temperatures, or computer simulations using finite element analysis.”


joe cool 360 wrote:Not true, there are many quotes from firefighters saying that WTC7 was about to collapse

Doesn't that strick you as odd? No steel tower had ever collapsed before 9-11. Now maybe you could say that they saw something that we didn't but...

Officer Bartmer strongly discounts there being any major damage to Building 7 prior to the series of explosions that he says brought it down:
“I walked around it. I saw a hole. I didn’t see a hole bad enough to knock a building down, though. Yeah there was definitely fire in the building, but I didn’t hear any… I didn’t hear any creaking, or… I didn’t hear any indication that it was going to come down. “
“Yeah it had some damage to it, but nothing like what they’re saying… Nothing to account for what we saw… I am shocked at the story we’ve heard about it to be quite honest.”


How does an office fire even take a building down?

Eyewitness Tris McCall observed the collapse from a high and clear vantage point:

“Just before the fall of the North Tower, we saw a large explosion coming from the street-level area around World Trade Center 7. I remember thinking that it looked distinctly like a bomb had been detonated underneath the city, and, of course, that’s exactly what I thought had occurred.

b. F.D.N.Y. was reporting that the fires were in the process of being controlled.

21. In a journalistic error of epic proportions and displaying clear evidence of advance knowledge, both CNN and BBC erroneously reported that WTC Building 7 had collapsed – well prior to the actual collapse of the building. In mindboggling video reports, their reporters can be seen describing the collapse of a 47-story building which was still standing and clearly visible behind them on a live feed as they spoke.

CNN reports of its collapse began 1 hour and 10 minutes premature to the onset of building collapse. The BBC reported the event (that had not yet happened) 23 minutes in advance of reality.


At any rate, what I'm saying is that you're right, it was known before tower 7 fell that it was going to collapse. Even CNN knew 1H10M before it happened. From an office fire. The CIA, FBI, and IRS all claimed that all of their people were accounted for. That no one was in the building. So the firefighters were all ordered to get to a safe distance. HOWEVER, shockingly, there were firefighters who reported seeing BODIES inside of the tower before it was brought down. And there are also witnesses to explosions at that tower as well. It is very important to note that there are people on the record saying that there were explosions at all three buildings, and explosions under all three towers.
Unfortunately, Barry Jennings, whose testimony was ignored by the 9/11 Commission, can no longer raise questions personally about his experience inside WTC7, but his account will remain on the record and available in-full on the Fabled Enemies DVD so that what he witnessed about 9/11 cannot be ignored.” Aaron Dykes, InfoWars, September 16, 2008; Key Witness to WTC 7 Explosions Dead at 53. Accessible at:
http://www.infowars.net/articles/Septem ... itness.htm

And there are also quite a few people who have come foreward saying that there was even a countdown....
Also: WTC7, Barry Jennings, Peter Ganci, Giuliani & Arnold Weick; Geezer Power; May 26, 2008 at:

http://suzieqq.wordpress.com/2008/05/26 ... old-weick/

Also:http://hidhist.wordpress.com/terror/911/wtc7-barry-jennings-peter-ganci-giuliani-arnold-weick/

Further, and of the same significance, at the moment that global collapse ensued, Chief Ganci looked up and stated:

“What the f*ck is this?”

(Verbatim quote from F.D.N.Y. Deputy Assistant Chief Albert Turi, in whose presence the above statement was made)

7. A BBC report attempted to minimize Jennings’ comments by noting that he never actually said that he had actually seen the dead bodies. Jennings maintained he was certain about the dead bodies in the lobby of Building 7. The cause of Jennings’ death has not yet been explained:

“That interview was not released until June 2008 at the request of Mr. Jennings, who had received numerous threats to his job and asked that it to be left out of Loose Change: Final Cut because of those threats. Jennings statements have lit fire to questions about what really caused the sudden collapse of WTC7 just as NIST had hoped the release of their report would quash widespread beliefs that the building was brought down by controlled demolition. News of Jennings’ death comes on the heels of losing another 9/11 hero and eyewitness– Kenny Johannemann, who reportedly committed suicide 12 days before the seventh anniversary of 9/11. Johannemann is credited with saving at least one man’s life on 9/11 and was also a witness to explosions in the towers. NIST’s report, as well as that of the 9/11 Commission (which did not even mention WTC7), completely ignored statements from the building leaseholder Larry Silverstein as well as numerous police, fire fighters and other eyewitnesses who have testified that they were warned about the building’s collapse and told to get back. One rescue worker even heard a countdown for the building’s implosion.



joe cool 360 wrote:You probably did give a source for this, but your post was so incredibly long, I didn't bother looking, if you gave a source, please cite it again.

I don't think you bothered with much of what I said. But that's fine cause there was a lot there.
Each tower contained:
• Over 90,000 tons of concrete;
• 47 Massive Steel Core Columns and
• 240 Steel Perimeter Columns welded together and connected by hundreds of steel joints, perpendicular cross trusses, thousands of large steel bolts and concrete-filled steel floor decking at each floor level;
• 100,000 Ton Heat Sink to absorb excess heat;
• Updated fireproofing and a fire control system designed to prevent “chimney effect” and suffocate fires by depriving them of oxygen.


For you, this may be another case of "the plane destroyed the fireproofing system. But if the fire were able to rage, then it should have encompassed more of the tower.


At any rate, I still do not believe that the fires could have ever brought the steel to it's weakening point. Let alone cause pools of molten steel/iron... or for them to be molten days later. Or for there to be burn holes in the steel beams...The collapse of each of the towers does not fit the description of a fire weakening steel either.
The official story tells us that the steel was softened. But if that was the case and this building fell due to fires, the fires, by their nature, creep from place to place leaving one area cool and burning another area. That would force an asymmetrical collapse. The building would tip over. So for the first time in history, fires have done what only a handful of demolition companies are capable of doing.”
-Richard Gage

That's right. If a 250C fire can bring a building down on it's own foot print, then why do we need demolition companies? And why would they need expensive explosives?
• There is expert corroboration. The top European controlled demolitions expert confirms that WTC 7 was a controlled demolition. 27-year controlled demolitions expert Danny Jowenko states: “This is controlled demolition…it starts from below.” “They have simply blown away columns…A team of experts did this…This is professional work, without any doubt.”

“Molten iron is the product of the incendiary Thermite, a cutter charge which is used in many controlled demolitions. There is no other conceivable source of molten metal found at the base of World Trade Center 7. Hydrocarbon fires burn 1700 degrees maximum. Molten metal, molten iron in this case, and most all molten metals burn- they need 2700 degrees to create them. We’re missing a 1000 degrees of energy, of temperature.”

This is still the only reasonable thing i've found to explain the pools of Molten Iron! And I use "reasonable" lightly!
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby hecter on Fri Dec 12, 2008 8:37 am

Juan_Bottom wrote:
hecter wrote:Then please explain the bowing found on the side of the building.

The side of which building?

“The buildings have been investigated and found to be safe in an assumed collision with a large jet airliner [Boeing 707-DC 8] traveling at 600 miles per hour. Analysis indicates that such collision would result in only local damage which could not cause collapse or substantial damage to the building and would not endanger the lives and safety of occupants not in the immediate area of impact.“
“Our analysis indicated the biggest problem would be the fact that all the jet fuel would dump into the building. (But) the building structure would still be there.”

East face. Here it is a few minutes after impact, little to no bowing.
Image
Here's the same thing about 5 minutes before collapse:
Image
And here it is moments before collapse:
Image
You can regurgitate your quotes from that page all you want about temperatures and melting steel (why you want to talk about the steel melting, I don't know, the concept is ludicrous) and the analysis done and how it had updated fireproofing and a all that crap, but you continue to ignore the facts. It doesn't matter that it had updated fireproofing, there were still fires evident from, well, the fires that can be seen both at the crash site and by the massive amounts of smoke pouring from the entire floor.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 8:45 am

hecter wrote:You can regurgitate your quotes from that page all you want about temperatures and melting steel (why you want to talk about the steel melting, I don't know, the concept is ludicrous) and the analysis done and how it had updated fireproofing and a all that crap, but you continue to ignore the facts.

I'm talking facts, don't get frustrated. I didn't know what you were talking about. I thought you were talking about the dip in the roof.

hecter wrote:It doesn't matter that it had updated fireproofing, there were still fires evident from, well, the fires that can be seen both at the crash site and by the massive amounts of smoke pouring from the entire floor.

Just because there was a fire does not mean that the fire caused the collapse.

Was the bowing not caused by the center supports giving way about 6:15 before the collapse?
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby hecter on Fri Dec 12, 2008 9:01 am

Juan_Bottom wrote:Was the bowing not caused by the center supports giving way about 6:15 before the collapse?

Why would it be caused by that? Besides...
"According to Shyam Sunder, the concave bowing of the steel was seen on the sides of the towers opposite where the planes hit them. At 10:06 a.m. that morning, an officer in a police helicopter reported that ``it's not going to take long before the north tower comes down.'' This was 20 minutes before it collapsed. In another radio transmission at 10:21 a.m., the officer said he saw buckling in the north tower's southern face, Shyam Sunder said."

"Engineers believe the bowing of the exterior steel beams near the flame-engulfed floors was the critical "triggering point" because that's the direction each tower tilted as it came crashing down."

"The report includes photographs taken from police helicopters showing the bending columns."
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 9:50 am

Just asking....

But here we go:
IF there was bowing on the towers, this still supports what I'm saying about a collapse due to a fire...
Nathan Lomba, Structural Engineer, of Eureka, California, states

“I began having doubts about, so called, official explanations for the collapse of the WTC towers soon after the explanations surfaced. The gnawing question that lingers in my mind is: How did the structures collapse in near symmetrical fashion when the apparent precipitating causes were asymmetrical loading? The collapses defies common logic from an elementary structural engineering perspective. “If” you accept the argument that fire protection covering was damaged to such an extent that structural members in the vicinity of the aircraft impacts were exposed to abnormally high temperatures, and “if” you accept the argument that the temperatures were high enough to weaken the structural framing, that still does not explain the relatively concentric nature of the failures.

Neither of the official precipitating sources for the collapses, namely the burning aircraft, were centered within the floor plan of either tower; both aircraft were off-center when they finally came to rest within the respective buildings. This means that, given the foregoing assumptions, heating and weakening of the structural framing would have been constrained to the immediate vicinity of the burning aircraft. Heat transmission (diffusion) through the steel members would have been irregular owing to differing sizes of the individual members; and, the temperature in the members would have dropped off precipitously the further away the steel was from the flames—just as the handle on a frying pan doesn’t get hot at the same rate as the pan on the burner of the stove. These factors would have resulted in the structural framing furthest from the flames remaining intact and possessing its full structural integrity, i.e., strength and stiffness.

Structural steel is highly ductile, when subjected to compression and bending it buckles and bends long before reaching its tensile or shear capacity. Under the given assumptions, “if” the structure in the vicinity of either burning aircraft started to weaken, the superstructure above would begin to lean in the direction of the burning side. The opposite, intact, side of the building would resist toppling until the ultimate capacity of the structure was reached, at which point, a weak-link failure would undoubtedly occur. Nevertheless, the ultimate failure mode would have been a toppling of the upper floors to one side—much like the topping of a tall redwood tree—not a concentric, vertical collapse.

For this reason alone, I rejected the official explanation for the collapse of the WTC towers out of hand. Subsequent evidence supporting controlled, explosive demolition of the two buildings are more in keeping with the observed collapse modalities and only serve to validate my initial misgivings as to the causes for the structural failures.”


This is absolutely untrue—that vertical columns won’t offer ANY resistance unless perfectly vertical. He is setting the stage to debunk one of the most powerful arguments I have stated before: that when the South Tower began to lean over during initial collapse (about 20 degrees), nothing could have stopped that leaning momentum from increasing as long as there was ANY resistance at all from the base—providing the leverage for the tilt.

Thanks for linking to my web page about WTC1. Re Arthur Scheuerman’s comments above he seems to mix up deformation due to heat, buckling and collapse of a steel structure.
Evidently heat affects steel. The weakest parts of the WTC1 structure were the horisontal floor trusses and if you heat them they will bend downwards, sag, due to their own weight (460 kgs/m² incl. cement and everything on the floor) but as they are still connected to the perimeter and wall columns this sagging will not affect the latter. The columns are still supported by the floor trusses even if bent a little. And the max sagging between the end supports at the columns cannot be very big.
The suggestion that sagging floor trusses will pull in, e.g. the south wall of WTC1 55 inches is not possible (the ‘enhanced’ photo of the wall is misleading) because the wall is too strong. Regardless, if it happens, the south wall is just deformed a little over a very large large area (with the deepest deformation 55 inch at the centre of this deformation) and it does not affect the total strength of the wall that is under very low stress (<25% yield).
NIST uses buckling of supporting structure (columns) in a very confusing way. We do not know if they mean bending and how much or twisting (no column twisted!) or crumpling up (vertical compression of the columns in folds not seen anywhere).
Just because one part of a structure deforms or buckle (how?) due to heat and its own weight does not mean that the total structure suddenly collapses, please note this Mr Scheuerman! For that, collapse, you need extra energy and this is what my paper is about. And I show that very little energy is available under extreme circumstances! Extreme circumstances = all columns fail simultaously, the WTC1 top above the initiation zone drops down free fall 3.7 m and impacts the structure to be destroyed. How much released potential energy is applied to the structure below? 170 kWh. Equivalent to 20 kgs of diesel oil.

It cannot destroy the whole WTC1.
Anders Björkman


And if there wasn't:
A key part in NIST's theory of the collapse initiation is that the perimeter columns on one of the faces of each Tower bowed inward, pulled by sagging trusses. The Report contends that the columns on the south face of the North Tower bowed inward in the moments before its collapse and that the columns on the east face of the South Tower bowed inward some time before its collapse. As evidence for the supposed bowed columns NIST cites photographs. The Report includes one annotated photograph allegedly showing bowing in the North Tower, but no such photographs of allegedly bowing of columns in the South Tower. There are two photographs of alleged South Tower column bowing in an earlier slide presentation.

NIST fails to consider an alternative explanation for the bowed appearance of columns in its selected photographs of the Twin Towers: light refraction caused by the layer of hot air adjacent to the Towers. Such atmospheric conditions would refract light in a way that is consistent with apparent distortion of the columns seen in the photographs.


Image
This illustration is in the slide presentations predating the Report, and is included in the final Report (p 33/83). NIST assigns inward displacements of every fifth column at each floor based on their appearance in the photograph
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 10:12 am

Is it just me, or is all the bowing on the edges of this fire?

If we ignore Windsor tower, and say that fire could heat the steel enough to cause a collapse. And a buckling...http://en.wikipedia.org/wiki/Windsor_Building

Then that only complicates the story more. Firstly, the steel was made to resist thermal expansion. Second, fires do not cause buildins to fall uniformly.
Image

Even though there was "bowing" on a perticular side of the tower, the tower did not fall in the direction it was leaning. Instead the tower fell inwards? If a fire caused the "bowing" why didn't the building continue falling in that direction? If there really was bowing then I would expect the building to fall more like this:
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Backglass on Fri Dec 12, 2008 10:14 am

HapSmo19 wrote:
Backglass wrote:Also.....if you are going to demo a building from the inside, why go to all the trouble of hi-jacking planes, hoping you can hit the buildings, etc?


There would be too many questions aimed the security(marvin bush) of a building that allowed 'terrorists' to rig the entire thing with demolitions. Planes made great shock value for television.


Yeah, because the towers FALLING isn't shocking enough. :lol: So, were they hoping that TV cameras are around to film it? Or were the news media in on it too?

Way to many what-if's. Demo prep would have taken WEEKS with hundreds of thousands of charges being placed on thousands of pre-weakened beams all throughout the building. If you actually look at the logistics of prepping the building for controlled demolition and the manpower/time/equipment it would take...it's just not plausible. Not to mention that these hundreds of thousands of explosive charges would have needed WIRES running to a central point. (I know someone will say "They were wireless" but THAT involves even more impossibilities.)

It's bizarre that the TRUTH is fantastic enough, yet people don't want to believe it.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 10:34 am

Backglass wrote:Way to many what-if's. Demo prep would have taken WEEKS with hundreds of thousands of charges being placed on thousands of pre-weakened beams all throughout the building. If you actually look at the logistics of prepping the building for controlled demolition and the manpower/time/equipment it would take...it's just not plausible. Not to mention that these hundreds of thousands of explosive charges would have needed WIRES running to a central point. (I know someone will say "They were wireless" but THAT involves even more impossibilities.)

You don't know that. The trade towers were the most studied buildings ever. PERHAPS a demolition expert would only need to plant explsive in a few places and let gravity do the rest? I don't know I'm not this guy:
There is expert corroboration. The top European controlled demolitions expert confirms that WTC 7 was a controlled demolition. 27-year controlled demolitions expert Danny Jowenko states: “This is controlled demolition…it starts from below.” “They have simply blown away columns…A team of experts did this…This is professional work, without any doubt.”
But if you think about it there isn't any other way to explain how a fire brought three buildings down that fast, and INWARDS. Nor can you explain the moten metel, or seismic readings.

The official story tells us that the steel was softened. But if that was the case and this building fell due to fires, the fires, by their nature, creep from place to place leaving one area cool and burning another area. That would force an asymmetrical collapse. The building would tip over. So for the first time in history, fires have done what only a handful of demolition companies are capable of doing.”
-Richard Gage
17. In another peer-reviewed study, it was determined that seismic activity clearly identified explosions separate from the jetliner impacts:

“On September 11, 2001, the seismic stations grouped around New York City recorded seismic events from the WTC site, two of which occurred immediately prior to the aircraft impacts upon the Twin Towers. Because these seismic events preceded the collisions, it is clear they were not associated with the impacts and must therefore be associated with some other occurrence. None of the authorities charged with the responsibility for the investigation of the events of 9/11 have proposed a source for these seismic events, nor have they given a valid reason for the difference in times between the seismic events and the aircraft impacts. Only by consideration of the evidence of
basement explosions before the aircraft impacts, as experienced by William Rodriquez and 36 others, can an explanation be found for the fact that the seismic stations recorded seismic events originating from the WTC sites prior to the aircraft impacts.”

“This is neither theory nor hypothesis, but a statement of publicized facts regarding the timing of the aircraft impacts. There exist two separate precision data time sets that address when the aircraft crashed into the Towers. Both data time sets are based on UTC (Coordinated Universal Time, the world’s atomic clock system) and the sources that determined these times were prestigious, reliable and credible. There is no question regarding the precision and accuracy of the instruments used to record both data time sets, since their entire function depends and relies upon temporal accuracy, and therefore there can be no doubt that both data time sets are correct. The time data sets represent objective scientific data recorded by two separate, independent entities. The problem is the data sets have different impact times.”

CONCLUSION:

“Because these signals preceded the impacts there can be no doubt that the seismic signals recorded were not those associated with the aircraft impacts on the Towers. These signals were in fact the seismic spikes associated with the huge basement explosions reported by witnesses.” (Furlong & Ross; 2006)
b. A dip in the roof line of the building as collapse initiates is clearly visible in the videos of Building 7 on 9/11. A dip in roof line is a trademark of controlled demolition.



Plus you have to completely ignore witness testimony from that Ramirez guy who was in the sub levels of one of the towers when an explosion went off in the basement, just below him. Among many, many others who heard bombs, and saw flashes. You are ignoreing testimony from over 200 people.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Backglass on Fri Dec 12, 2008 2:36 pm

How about a review from a REAL Demolition expert who was there.

Brent Blanchard from Pro-Tec and editor of http://www.ImplosionWorld.com where this QA session is documented.

On 9/11 Protec had portable field seismic monitoring systems operating at other sites in Manhattan and Brooklyn. Demolition specialists were hired to clean up Ground Zero and remove the remaining damaged strum, and these experts called on Blanchard's company to document both the deconstruction and the debris removal.

#1. The collapse of the towers looked exactly like controlled demolitions.

No they did not. The key to any demolition investigation is in finding out the "where"--the actual point at which the building failed. All photographic evidence shows WTC1 and 2 failed at the point of impact. Actual implosion demolitions always start with the bottom floors. Photo evidence shows the lower floors of WTC 1 and 2 were intact until destroyed from above.

#2: But they fell right down into their own footprint.

They did not. They followed the path of least resistance and there was a lot of resistance. Buildings of 20 stories or more do not topple over like trees, or fall like reinforced towers or smokestacks do. Imploding demolitions fall into a footprint because lower stories are removed first. WTC debris was forced out away from the building as the falling mass encountered intact floors.

#3: Explosive charges are seen shooting from several floors just prior to collapse.

No, air and debris can be seen being violently ejected from the building--a natural and predictable effect of rapid structure collapse.

#4: Witnesses heard explosions.


All Seismic evidence from many independent sources on 9/11 showed none of the sudden vibration spikes that result from explosive detonations.

#5: A heat generating explosive (thermite?) melted steel at ground Zero.

To a man, demolition workers do not report encountering molten steel, cut beams or any evidence of explosions. Claims of detected traces of thermite are at this time inconclusive.

#6: Ground Zero debris--particularly the large steel columns from towers I and 2--were quickly shipped over-seas to prevent scrutiny.

Not according to those who handled the steel. The chain of procession is clearly documented, first at Ground Zero by Protec and later at the Fresh Kills site by Yannuzzi Demolition. The time frame (months) before it was shipped to China was normal.

#7: WTC7 was intentionally "pulled down" with explosives. The building owner himself was quoted as saying he decided to "pull it."

Building owners do not have authority over emergency personal at a disaster scene. We have never heard "pull it" used to refer to an explosive demolition. Because of the extensive fires, demolition explosive experts anticipated the collapse of WTC7. They also personally witnessed it from a few hundred feet away and no one heard detonations.

#8: Steel-frame buildings do not collapse due to fire.


Many steel-framed buildings have collapsed due to fire.

#9: Anyone who denys that explosives were used is ignoring evidence.

Most of our comments apply to the differences between what people actually saw on 9/11 and what they should have seen had explosives been present.

The hundreds of men and women who worked to remove debris from ground zero were some of the countries most experienced and respected demolition veterans. They of all people possessed the experience and expertise to recognize evidence of controlled demolition if it existed. None of these people have come forward with suspicions that explosives were used. And in five years of independent web and media investigation no actual explosives evidence has surfaced. If anyone knows of specific physical evidence relating to explosives being used in any manner on the Ground Zero site please bring it to our attention.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 3:28 pm

Backglass wrote:w about a review from a REAL Demolition expert who was there.

My expert is an expert. Not to mention all the qoutes and witness testimony. There are over 250 people who say they saw the bombs, heard the explosions, or heard a countdown for tower 7. None of their testimony has made it into any official report. And that is a lot of people.

Backglass wrote:Actual implosion demolitions always start with the bottom floors. Photo evidence shows the lower floors of WTC 1 and 2 were intact until destroyed from above.

As I have already said.

Backglass wrote:Imploding demolitions fall into a footprint because lower stories are removed first. WTC debris was forced out away from the building as the falling mass encountered intact floors.

You aren't reading what I'm posting! Those that support the controlled demolition theory say that the center support colums were cut before the building was brought down. And that they were cut under the basement, just above the bedrock....
There has never been a building of this type brought down by a controlled demoliton. So you have to throw what you think you know out the window. It has even been put forth that a few charges in the right place would allow gravity to take the building down on itself.

Backglass wrote:They followed the path of least resistance and there was a lot of resistance. Buildings of 20 stories or more do not topple over like trees, or fall like reinforced towers or smokestacks do.

This does not even make sense. According to NIST, the south tower was leaning 20degrees, but fell backwards onto itself because there was nothing behind it to slow it down? And fell at the speed of gravity? I mean I'm no physics expert, but... Not to mention the steel had a load bearing ability of 200:1...

Backglass wrote:No, air and debris can be seen being violently ejected from the building--a natural and predictable effect of rapid structure collapse.

No. This only works if you believe the "pancaking" theory. Otherwise squibbs are only charactoristic of controlled demolitions. If you go to the firefighters site they have a video with the sounds of explosions going off as the squibbs are shot out.

The fourth paragraph addresses the jets of dust, often called "squibs." It reads:

NIST attempts to explain away without disclosing evidence for or even accurately describing this demolition feature: energetic jets of dust emerging symmetrically from the Tower's faces. (Image copyright: Richard Lethin)
The falling mass of the building compressed the air ahead of it, much like the action of a piston, forcing material, such as smoke and debris, out the windows as seen in several videos. (p 146/196)
NIST conceals the nature of the energetic ejections by describing them only as material "forc[ed] ... out the windows". It does not mention any resources for examining this evidence, such as these video frames showing dust ejections from the North Tower.

When one examines these ejections, it becomes obvious that NIST's piston theory does not begin to explain them, for a number of reasons including:

No photographs show evidence of the alleged piston moving down inside of the Towers, and the thickness of the dust clouds indicate that the floors were being pulverized well above the ejections.
The ejections appear at regular intervals on all visible faces of the North Tower, a pattern much too regular to be explained by the piston theory.
The North Tower's ejections are very energetic and focused, blasting through single openings on each face. This challenges the piston theory to explain how the relatively even application of pressure caused by falling floors could be contained by all but single windows in the middle of each face.
The ejections appear to contain thick dust such as of pulverized concrete and gypsum, which would not be generated until after a floor had already collapsed and ejected its air.

NIST thus attempts to explain away only two of the six features of controlled demolition enumerated in the Conclusion of this essay, and in the essay's earlier version critiquing the NIST's Draft Report.


Backglass wrote:All Seismic evidence from many independent sources on 9/11 showed none of the sudden vibration spikes that result from explosive detonations.

This is not true, it's an outright deception. I don't know where you got that from. Again, you are not reading what I am posting. There is a ton of seismic evidence presented in several films, including Loose Change, In Plane Sight, & What Really Happened, among MANY others..

Plus I just posted this in response to you:
“On September 11, 2001, the seismic stations grouped around New York City recorded seismic events from the WTC site, two of which occurred immediately prior to the aircraft impacts upon the Twin Towers. Because these seismic events preceded the collisions, it is clear they were not associated with the impacts and must therefore be associated with some other occurrence. None of the authorities charged with the responsibility for the investigation of the events of 9/11 have proposed a source for these seismic events, nor have they given a valid reason for the difference in times between the seismic events and the aircraft impacts. Only by consideration of the evidence of
basement explosions before the aircraft impacts, as experienced by William Rodriquez and 36 others, can an explanation be found for the fact that the seismic stations recorded seismic events originating from the WTC sites prior to the aircraft impacts.”

“This is neither theory nor hypothesis, but a statement of publicized facts regarding the timing of the aircraft impacts. There exist two separate precision data time sets that address when the aircraft crashed into the Towers. Both data time sets are based on UTC (Coordinated Universal Time, the world’s atomic clock system) and the sources that determined these times were prestigious, reliable and credible. There is no question regarding the precision and accuracy of the instruments used to record both data time sets, since their entire function depends and relies upon temporal accuracy, and therefore there can be no doubt that both data time sets are correct. The time data sets represent objective scientific data recorded by two separate, independent entities. The problem is the data sets have different impact times.”

I believe it was columbia college, though I can't remember for certain, that recorded 2 earthquake with a magnitude of 6 after the planes hit, but just before the towers went down. They did not record a single blip from the planes hitting, or from the collapses. The only explination that I can find for that is if there was a bomb going off on a support that is anchored into the bedrock.

Backglass wrote:#5: A heat generating explosive (thermite?) melted steel at ground Zero.

To a man, demolition workers do not report encountering molten steel, cut beams or any evidence of explosions. Claims of detected traces of thermite are at this time inconclusive.

Again, I'm sorry but this is simply not true. I don't know where you're hearing this from. Several rescue workers/firefighters report molten metal; NASA's own infrared satellite images identified hotspots in the debris exceeding 1300 degrees Fahrenheit.
http://firefightersfor911truth.org/?cat=11
In fact, FEMA reported the molten metal, and claimed it was lead from some batteries in the UPS office, wearas NIST completely ignored it. Simply stating that the fire could not burn hot enough.

Backglass wrote:#6: Ground Zero debris--particularly the large steel columns from towers I and 2--were quickly shipped over-seas to prevent scrutiny.

Not according to those who handled the steel. The chain of procession is clearly documented, first at Ground Zero by Protec and later at the Fresh Kills site by Yannuzzi Demolition. The time frame (months) before it was shipped to China was normal.

Again, no. Workers were not even allowed to remove bodies that they discovered weeks after the collapse. They wrote a letter to Guilliani about it. It's also in Loose Change and several other films. Chain of process or not, the debri was shipped overseas immediatly.

Backglass wrote:#7: WTC7 was intentionally "pulled down" with explosives. The building owner himself was quoted as saying he decided to "pull it."

Building owners do not have authority over emergency personal at a disaster scene. We have never heard "pull it" used to refer to an explosive demolition. Because of the extensive fires, demolition explosive experts anticipated the collapse of WTC7. They also personally witnessed it from a few hundred feet away and no one heard detonations.

That Lary Silverstein stuff is a trap. Go here:
http://firefightersfor911truth.org/?cat=11
And you can read witness statements of Firefighters who heard countdowns, or were told "we're gonna pull the building."
PLUS, Several witness claim to have seen an explosion in the basement. Some even saw bodies in tower 7. I've already shared it.
Firefighter Louie Cacchioli stated:
“My story was never mentioned in the final report and I felt like I was being put on trial in a court room. I finally walked out. They were trying to twist my words and make the story fit only what they wanted to hear. All I wanted to do was tell the truth and when they wouldn’t let me do that, I walked out…. It was a disgrace to everyone, the victims and the family members who lost loved ones. I don’t agree with the 9/11 Commission. The whole experience was terrible.” See:
http://whatreallyhappened.com/WRHARTICL ... hters.html

6. There are 3 witnesses to the statement from F.D.N.Y. Chief of Department Peter Ganci, who was also killed in action on the morning of 9/11. All 3 witnesses were on-scene at the time and all 3 substantiate the statement, separately from the others, in virtually the same words and meaning.

See: 9/11 Contradictions: An Open Letter to Congress and the Press; David Ray Griffin; 2008

Also: WTC7, Barry Jennings, Peter Ganci, Giuliani & Arnold Weick; Geezer Power; May 26, 2008 at:

http://suzieqq.wordpress.com/2008/05/26 ... old-weick/

Also:http://hidhist.wordpress.com/terror/911/wtc7-barry-jennings-peter-ganci-giuliani-arnold-weick/

Further, and of the same significance, at the moment that global collapse ensued, Chief Ganci looked up and stated:

“What the f*ck is this?”

(Verbatim quote from F.D.N.Y. Deputy Assistant Chief Albert Turi, in whose presence the above statement was made)

7. A BBC report attempted to minimize Jennings’ comments by noting that he never actually said that he had actually seen the dead bodies. Jennings maintained he was certain about the dead bodies in the lobby of Building 7. The cause of Jennings’ death has not yet been explained:

“That interview was not released until June 2008 at the request of Mr. Jennings, who had received numerous threats to his job and asked that it to be left out of Loose Change: Final Cut because of those threats. Jennings statements have lit fire to questions about what really caused the sudden collapse of WTC7 just as NIST had hoped the release of their report would quash widespread beliefs that the building was brought down by controlled demolition. News of Jennings’ death comes on the heels of losing another 9/11 hero and eyewitness– Kenny Johannemann, who reportedly committed suicide 12 days before the seventh anniversary of 9/11. Johannemann is credited with saving at least one man’s life on 9/11 and was also a witness to explosions in the towers. NIST’s report, as well as that of the 9/11 Commission (which did not even mention WTC7), completely ignored statements from the building leaseholder Larry Silverstein as well as numerous police, fire fighters and other eyewitnesses who have testified that they were warned about the building’s collapse and told to get back. One rescue worker even heard a countdown for the building’s implosion.

Unfortunately, Barry Jennings, whose testimony was ignored by the 9/11 Commission, can no longer raise questions personally about his experience inside WTC7, but his account will remain on the record and available in-full on the Fabled Enemies DVD so that what he witnessed about 9/11 cannot be ignored.” Aaron Dykes, InfoWars, September 16, 2008; Key Witness to WTC 7 Explosions Dead at 53. Accessible at:
http://www.infowars.net/articles/Septem ... itness.htm
Interview from: Fabled Enemies, Jason Bermas, 2008. Accessible at: http://www.youtube.com/watch?v=Uu0xfz4DEN4
8. Ground Zero EMT: We Were Told Building 7 Was to Be “Pulled”; Paul Joseph Watson; February 8, 2007; Prison Planet. Accessible at: http://www.prisonplanet.com/articles/fe ... lding7.htm

Shocking New Revelations On 9/11 Ground Zero Cover-Up
First responder heard WTC 7 demolition countdown, was warned to “shut up” when he reported secondary explosions; Paul Joseph Watson Prison Planet; September 28, 2007:
http://www.infowars.com/articles/sept11 ... ver_up.htm

9. Graeme MacQueen; 118 Witnesses: The Firefighters’ Testimony to Explosions in the Twin Towers at: http://www.journalof911studies.com/ and video accessible at: http://www.youtube.com/watch?v=cZ4dVo5QgYg
10. Jimmy Walter; Confronting The Evidence;
http://video.google.com/videoplay?docid ... 0806338693

Graeme MacQueen; 118 Witnesses: The Firefighters’ Testimony to Explosions in the Twin Towers at: http://www.journalof911studies.com/ and video accessible at: http://www.youtube.com/watch?v=cZ4dVo5QgYg


Backglass wrote:#8: Steel-frame buildings do not collapse due to fire.

Many steel-framed buildings have collapsed due to fire.

What? No tower has ever collapsed due to a fire. Including many that have burned for much longer. As I have already shared.

Backglass wrote:None of these people have come forward with suspicions that explosives were used.

Gee I wonder why. I wonder if their testimonies would also be ignored? Or maybe they would also lose their jobs? Like the architects, proffessors, military personel, pilots, and aero engineers that have all lost their jobs?

Backglass wrote:And in five years of independent web and media investigation no actual explosives evidence has surfaced. If anyone knows of specific physical evidence relating to explosives being used in any manner on the Ground Zero site please bring it to our attention.

Again, it's all ignored. Everything that you've said here I've already answered to. These people simply ignore it and make up impossable scenarios.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby hecter on Fri Dec 12, 2008 3:36 pm

I find it pretty interesting that a building whose supports have a 200:1 strength ratio and that were specifically designed to be able to withstand plane crashes, with a mosquito netting like grid where a 707 is simply poking a hole in the netting and does nothing to the actual support structure, that can withstand temperatures of well over 1000 degrees Celsius and have a healthy layer of fireproofing can be brought down by a few charges that nobody noticed being placed.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 3:54 pm

Who knows? What I know is that the fire didn't do it.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Backglass on Fri Dec 12, 2008 4:17 pm

Juan_Bottom wrote:I don't know where you got that from. Again, you are not reading what I am posting


I didn't "get" any of it. It all came from http://www.ImplosionWorld.com, a demolition industry site.

I choose to believe a true Demolition expert who was actually on-site in Manhattan on 9-11 and involved in the clean-up...not a guy from across the globe making assumptions from a video tape. How many of your 250 "experts" are demolition specialist? What exactly does an Electrical or Software engineer know about structure implosion?

Yet more straw grasping.

I fall back on my original premise. WHERE ARE THE EYEWITNESSES? An undertaking of this magnitude would require hundreds, if not thousands of accomplices with inside knowledge. 5+ years later, NOT ONE PERSON has come forward. No camera-phone photos of squibb prep. No taped phone calls of planning meetings. No emails. Nothing. Anyone who could say they were there could have instant immunity and great wealth for book/movie rights, etc. Yet...no one. Silence. Crickets.

Where are they? Are they all government robots?
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 6:26 pm

Backglass wrote:I choose to believe a true Demolition expert who was actually on-site in Manhattan on 9-11 and involved in the clean-up...not a guy from across the globe making assumptions from a video tape.

What? Danny Jowenko is not "some guy." He is a 27 year controlled demolitions expert. His being dutch gas nothing to do with anything. He doesn't need to make assumptions, he is a proffessional.

Backglass wrote:How many of your 250 "experts"

Over 250 witnesses :lol: . "You did not go to bomb school, you do not know what an explosion looks like!" "You did not go to dead body school, you do not know what a dead body looks like!" :lol:
Sorry, it was just funny how you misunderstood.

As far as my "experts" go:
Here are the government officials and military personel who question the official story
http://patriotsquestion911.com/
And here are the Architects & Engineers for 9/11 Truth
http://www.ae911truth.org/
Firefighters for 911 truth
http://firefightersfor911truth.org/?cat=11
Pilots for 911 truth
http://www.pilotsfor911truth.org/
Scholors for 911 Truth and Justice
http://stj911.org/
2nd Responders
http://2ndresponders.org/
911 Reasearch
http://911research.com/
911 Truth
http://www.911truth.org/
American Freedom Campaign(lawyers mostly)
http://www.americanfreedomcampaign.org/
Feel Good Foundation
http://www.fealgoodfoundation.com/
United in Peace
http://uniteinpeace.org/index.html
Visability 911
http://www.visibility911.com/
We Are Change
http://www.wearechange.org/

And then of course I may qoute random experts or professionals, who do not have their own site ;) .


Backglass wrote:Yet more straw grasping.

From you! Look how you've come full circle. I've answered every question thrown at me. You have to respect that.

I fall back on my original premise. WHERE ARE THE EYEWITNESSES? An undertaking of this magnitude would require hundreds, if not thousands of accomplices with inside knowledge. 5+ years later, NOT ONE PERSON has come forward. No camera-phone photos of squibb prep. No taped phone calls of planning meetings. No emails. Nothing. Anyone who could say they were there could have instant immunity and great wealth for book/movie rights, etc. Yet...no one. Silence. Crickets.

Where are they? Are they all government robots?

As I said, I don't want to speculate.
However, to satisfy your sense of curiosity...
First, several firefighters reported finding BODIES inside tower 7, even though the IRS, CIA, FBI and other various groups all claim that all of their people got out of the building. The testimonies of these firefighters never made it into any reports. The ONLY PEOPLE paying attention to them are the truthers. Call those dead bodies the "loose ends?"
Second, who knows how much planning would be needed? The towers were the most diagramed and planned buildings ever constructed. And since no tower has ever been imploded, you can't say how much time or equiptment it would take to bring it down. As has been put forward, maybe a few well-placed charges could get it started and allow gravity to do the rest?
The same man who came up with, and planned for, the "what if" scenario of the Pentagon being hit by a jet was the actual pilot of the plane that hit the pentagon.
There are actually quite a few people who have come forward with relevent information. And quite a few have been caught lying.

22. Norm Mineta, U.S. Secretary of Transportation, 2001-2006, was present in the White House Presidential Emergency Operations Center on the morning of 9/11 and testified under oath to the 9/11 Commission regarding Vice President Cheney’s awareness of the hijacked flights well prior to the time at which that awareness has been officially acknowledged (the portion of Mr. Mineta’s testimony which reveals that prior awareness has been edited out of the official 9/11 video archives, at approximately the first 15 minutes of his testimony, Panel 1, Friday, May 23, 2003). Mineta has confirmed that he arrived at the PEOC bunker at 9:25 a.m. and that “absolutely” Vice-President Cheney, as well as Lynn Cheney and a number of staff were already there. Yet the official report of the 9/11 Commission states that Vice-President Cheney did not arrive at the bunker until 9:58; after the Pentagon had been struck.

Transportation Secretary Mineta further testified that while at the Emergency Operations Center on the morning of 9/11, a military liaison kept coming to the table with regular updates on the location of the hijacked plane headed for the Pentagon:

“During the time that the airplane was coming into the Pentagon, there was a young man who would come in and say to the Vice-President: “The plane is 50 miles out. The plane is 30 miles out.” And when he got down to: “The plane is 10 miles out,” the young man also said to the Vice-President: “Do the orders still stand?” And the Vice-President turned and whipped his neck around and said: “Of course the orders still stand. Have you heard anything to the contrary?”

23. Louis Freeh, Director of the FBI, 1993-2001, has cited the dramatic failure of the 9/11 Commission to approach key issues, specifically the “Able Danger” Intelligence Program and states:

“The Able Danger intelligence, if confirmed, is undoubtedly the most relevant fact of the entire post-9/11 inquiry. Even the most junior investigator would immediately know that the name and photo ID of Atta in 2000 is precisely the kind of tactical intelligence the FBI has many times employed to prevent attacks and arrest terrorists. Yet the 9/11 Commission inexplicably concluded that it ‘was not historically significant.’ This astounding conclusion – in combination with the failure to investigate Able Danger and incorporate it into its findings – raises serious challenges to the commission’s credibility and, if the facts prove out, might just render the commission historically insignificant itself.”


But as I have said, what's the point in speculating? As I have evidenced, the fire in the 3 buildings does not explain the collapse, the molten metel, the explosions that were witnessed, the dead bodies in tower 7, the seismograph readings,..... It doesn't explain NIST, FEMA, the COMMISSION all ignoring key testimony and information,.... this could go on and on for forever.
All you have is this one question that's open speculation? I have given you seismographs, testimonies, physics, melting points; what more could you want to say that the fire did not cause the collapse?

Backglass wrote:Where are they? Are they all government robots?

I might be talking with one ;) .
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby hecter on Fri Dec 12, 2008 6:52 pm

Juan_Bottom wrote:I've answered every question thrown at me. You have to respect that.

Hardly, you still haven't explained the visible buckling on the side of the buildings. If you honestly think it's refraction from heat, then I have nothing more to say to you as that concept is almost as ludicrous as the fact that you keep bringing up the fires melting steel.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 8:22 pm

hecter wrote:Hardly, you still haven't explained the visible buckling on the side of the buildings. If you honestly think it's refraction from heat, then I have nothing more to say to you as that concept is almost as ludicrous as the fact that you keep bringing up the fires melting steel.

Look, you can straw man me all that you like, if you can't disprove me. But what is the point when anyone can read our correspondances? I very clearly responded to your question. Geez, I even made pictures! I even took your version of events and turned it into a question for you to answer back!
IF the South Tower was buckling, and leaning 20 degrees (according to NIST) then why did the tower fall backwards? If the fire HAD weakened one side of the building (which fires do not burn uniformly) then why did all of the supports give way at the exact same moment? Does this make sense to you?

AND AS for the molten meel, how many times you want me to say it?
I would AGAIN like to point out that my main point is that the fire couldn't weaken the steel to the point of collapse. According to NIST's own models, 157 out of 160 supports were NEVER EXPOSED to fires above 250C. Which is normal heat for an office fire. The HOTTEST the fires ever got was 650C... even if that heat were focused on the final three support beams, it would still give them a load bearing of 50:1 or greater. There simply is not enough heat or energy to weaken those beams.

HOWEVER YES MOLTEN METEL WAS FOUND AT ALL THREE TOWERS. POOLS OF IT WERE FOUND IN THE BASEMENTS. FEMA EXPLAINED THE MOLTEN POOLS AS BEING LEAD FROM BATTERIES ALTHOUGH THEY DID NOT TEST IT. NIST IGNORED THE MOLTEN STEEL/IRON. Yet the fires could not have possably burned hot enough to turn the steel molten. What's ludicrous is that you ignore my posts, then say it never happened.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Aradhus on Fri Dec 12, 2008 8:35 pm

I'd love to see some proper research done on people who believe 9/11 was an inside job, and people who do not. I wonder what connections and similarities would be found within the two groups. Educational background would be interesting.. What percentage of believers believe other conspiracies, and which ones. I guess it would probably, most likely just be random, depend on where you poll, etc. Largely.. Might be an interesting study though.

Or maybe it would be dull as ditchwater and expose the fact there are more stupid/crazy nuts on this planet than we could ever comprehend/fear. Who knows.. Life is like a box of chocolates.. Rotten deformed fucking chocolate just waiting to poison you.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby hecter on Fri Dec 12, 2008 8:58 pm

Juan_Bottom wrote:
hecter wrote:Hardly, you still haven't explained the visible buckling on the side of the buildings. If you honestly think it's refraction from heat, then I have nothing more to say to you as that concept is almost as ludicrous as the fact that you keep bringing up the fires melting steel.

Look, you can straw man me all that you like, if you can't disprove me. But what is the point when anyone can read our correspondances? I very clearly responded to your question. Geez, I even made pictures! I even took your version of events and turned it into a question for you to answer back!
IF the South Tower was buckling, and leaning 20 degrees (according to NIST) then why did the tower fall backwards? If the fire HAD weakened one side of the building (which fires do not burn uniformly) then why did all of the supports give way at the exact same moment? Does this make sense to you?
What the hell does that mean? You're not making sense. You say the building fell to one side, but that all the supports gave at the exact moment? I'll try the best I can though... The supports buckled, pulling the building inwards. One side was weakened more than the other, so that side gave first. The building did not fall exactly on its own footprint, you can see the top of the tower collapsing at an angle in videos like this one.

AND AS for the molten meel, how many times you want me to say it?
I would AGAIN like to point out that my main point is that the fire couldn't weaken the steel to the point of collapse. According to NIST's own models, 157 out of 160 supports were NEVER EXPOSED to fires above 250C. Which is normal heat for an office fire. The HOTTEST the fires ever got was 650C... even if that heat were focused on the final three support beams, it would still give them a load bearing of 50:1 or greater. There simply is not enough heat or energy to weaken those beams.
The beams are weakened though. Clearly they are weakened. They're 4 times weaker than they were before. That's quite a bit. You can see the effect the weakness is happening due to the fact that you can see the buildings buckling. You say that the hottest the fire got is 1200F, but other sources say that it got as hot as 1800F. I've also heard that infrared spectrometer readings were taken of the surface after the crash showing it to be over 1300F. Your figures sound wrong to me.

HOWEVER YES MOLTEN METEL WAS FOUND AT ALL THREE TOWERS. POOLS OF IT WERE FOUND IN THE BASEMENTS. FEMA EXPLAINED THE MOLTEN POOLS AS BEING LEAD FROM BATTERIES ALTHOUGH THEY DID NOT TEST IT. NIST IGNORED THE MOLTEN STEEL/IRON. Yet the fires could not have possably burned hot enough to turn the steel molten.
"The debris pile sat cooking for weeks, with the materials at the bottom of the pile getting incresingly hot beacuse the fires were confined and lost minimal heat to the atmosphere. As a result the fires could have easily reached temps sufficient to melt steel, not to mention most other metals found in the buildings."
(Popular Mechanics: Debunking 9/11 Myths p.41)

"It is no mystery why the fire has burned for so long. Mangled steel and concrete, plastics from office furniture and equipment, fuels from elevator hydraulics, cars and other sources are all in great supply in the six-story basement area where the two towers collapsed.

Water alone rarely can quench this kind of fire, which will burn as long as there is adequate fuel and oxygen and as long as heat cannot escape, fire experts said." With Water and Sweat, Fighting the Most Stubborn Fire

NIST weighs in on the “Molten steel” question:

"NIST investigators and experts from the American Society of Civil Engineers (ASCE) and the Structural Engineers Association of New York (SEONY)—who inspected the WTC steel at the WTC site and the salvage yards—found no evidence that would support the melting of steel in a jet-fuel ignited fire in the towers prior to collapse. The condition of the steel in the wreckage of the WTC towers (i.e., whether it was in a molten state or not) was irrelevant to the investigation of the collapse since it does not provide any conclusive information on the condition of the steel when the WTC towers were standing.
NIST considered the damage to the steel structure and its fireproofing caused by the aircraft impact and the subsequent fires when the buildings were still standing since that damage was responsible for initiating the collapse of the WTC towers.

Under certain circumstances it is conceivable for some of the steel in the wreckage to have melted after the buildings collapsed. Any molten steel in the wreckage was more likely due to the high temperature resulting from long exposure to combustion within the pile than to short exposure to fires or explosions while the buildings were standing." http://wtc.nist.gov/pubs/factsheets/faqs_8_2006.htm

When it comes to steel, looks can be deceiving:

"A study of the 1991 Oakland fire that burned 3,000 homes revealed the presence of melted copper in over 80% of the burned structures, and what appeared to be melted steel in over 90% of the burned structures. With respect to steel, looks can be deceiving. What appears to be melted may be merely oxidized. Interpret melted metals, particularly steel, with caution, and interpret the temperatures you infer from these melted metals with extreme caution." http://www.atslab.com/fire/PDF/IndicatorsOfTrouble.pdf

"It is not possible to tell by visual examination alone whether a piece of steel has melted or merely oxidized." http://www.atslab.com/fire/PDF/MeltedSteel.pdf
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby Juan_Bottom on Fri Dec 12, 2008 9:29 pm

hecter wrote:What the hell does that mean? You're not making sense. You say the building fell to one side, but that all the supports gave at the exact moment?

What I'm saying is that if fire had weakened supports on one side, it would have been a leaning collapse, not a pancake one. If any collapse could ever be a pancake one.

hecter wrote:The beams are weakened though. Clearly they are weakened. They're 4 times weaker than they were before. That's quite a bit.

Thats an "if scenario." I know that the hottest the fire ever got was 650C, and I know that 157 out of 160 of the beams were never exposed to temperatures above 250C. So at worst (by any measure) three beams were weakened to a load bearing capability of 50:1. If any three beams can bring any modern tower to a total inward collapse we have a very serious safety issue here.
And we aren't even talking about heat conduction yet.

hecter wrote:The supports buckled, pulling the building inwards. One side was weakened more than the other, so that side gave first.
Pulling the building inwards? Even though it was already leaning 20 degrees? For this you have to believe that once a collapse starts at any point, all supports will give away? I'm aweful tired right now so I'll just say that these sites do a good job of challenging NIST's baseless conclusions.
http://911research.wtc7.net/essays/nist/#failure
http://www.ae911truth.org/


hecter wrote:"The debris pile sat cooking for weeks, with the materials at the bottom of the pile getting incresingly hot beacuse the fires were confined and lost minimal heat to the atmosphere. As a result the fires could have easily reached temps sufficient to melt steel, not to mention most other metals found in the buildings."
(Popular Mechanics: Debunking 9/11 Myths p.41)

I don't ever want to see you use Popular Mechanics again! They have admitted to faking evidence and even DOCTORING photos. More information on that can be found at LooseChange since it was one of the loose change guys that busted them out on a radio program. I can't remember the specifics anymore, but it was amazing. Yes, they literally doctored photos.

hecter wrote:NIST considered the damage to the steel structure and its fireproofing caused by the aircraft impact and the subsequent fires when the buildings were still standing since that damage was responsible for initiating the collapse of the WTC towers.
Yet as I mentioned NIST has never shown any proof that the jets ever knocked the fireproofing free.

Under certain circumstances it is conceivable for some of the steel in the wreckage to have melted after the buildings collapsed. Any molten steel in the wreckage was more likely due to the high temperature resulting from long exposure to combustion within the pile than to short exposure to fires or explosions while the buildings were standing."
But still only from a fire reaching 650C? What about Conduction? And disapation?

hecter wrote:With respect to steel, looks can be deceiving. What appears to be melted may be merely oxidized. Interpret melted metals, particularly steel, with caution, and interpret the temperatures you infer from these melted metals with extreme caution."

Firstly, we are talking about pools of molten steel. Second, NASA recorded Temperatures of 1300 degrees days after the collapse. So the heat was there. Finally, there is an exert on http://firefightersfor911truth.org/?cat=11 about firefighters boots melting in the molten steel days later. Steel can't just burn forever can it? There has to be a catalyst. Steel/Iron would cool.
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby hecter on Fri Dec 12, 2008 10:03 pm

Juan_Bottom wrote:Pulling the building inwards? Even though it was already leaning 20 degrees? For this you have to believe that once a collapse starts at any point, all supports will give away?
Well, ya... If the entire floors worth of supports have failed, separated, that means that you've got a good 15 floors worth of building on top of the supports below the failure point. Each suport has to support x amount of weight and there's four supports, that's well over 60x of weight crashing down on top of the floor below the failure point, causing a chain reaction of failures until you have a pancaked building. And just because a building is leaning doesn't mean it can't fall inwards...

hecter wrote:"The debris pile sat cooking for weeks, with the materials at the bottom of the pile getting incresingly hot beacuse the fires were confined and lost minimal heat to the atmosphere. As a result the fires could have easily reached temps sufficient to melt steel, not to mention most other metals found in the buildings."
(Popular Mechanics: Debunking 9/11 Myths p.41)

I don't ever want to see you use Popular Mechanics again! They have admitted to faking evidence and even DOCTORING photos. More information on that can be found at LooseChange since it was one of the loose change guys that busted them out on a radio program. I can't remember the specifics anymore, but it was amazing. Yes, they literally doctored photos.
Fair enough...

hecter wrote:NIST considered the damage to the steel structure and its fireproofing caused by the aircraft impact and the subsequent fires when the buildings were still standing since that damage was responsible for initiating the collapse of the WTC towers.
Yet as I mentioned NIST has never shown any proof that the jets ever knocked the fireproofing free.

Under certain circumstances it is conceivable for some of the steel in the wreckage to have melted after the buildings collapsed. Any molten steel in the wreckage was more likely due to the high temperature resulting from long exposure to combustion within the pile than to short exposure to fires or explosions while the buildings were standing."
But still only from a fire reaching 650C? What about Conduction? And disapation?
Conduction is exactly what's happening. Metals in general are a fantastic heat sink (you've got one in your computer, open it up and look, you should have a fan over a big hunk of metal) so any fires still burning afterwards, which there seemed to be, would have put a lot of their heat into the surrounding metal, oxidizing, possibly melting steel (keep in mind, this is after collapse) and melting other metals like aluminum.

hecter wrote:With respect to steel, looks can be deceiving. What appears to be melted may be merely oxidized. Interpret melted metals, particularly steel, with caution, and interpret the temperatures you infer from these melted metals with extreme caution."

Firstly, we are talking about pools of molten steel. Second, NASA recorded Temperatures of 1300 degrees days after the collapse. So the heat was there. Finally, there is an exert on http://firefightersfor911truth.org/?cat=11 about firefighters boots melting in the molten steel days later. Steel can't just burn forever can it? There has to be a catalyst. Steel/Iron would cool.
Right, the heat was there, but this is after the collapse, something very different than the cause of the collapse. Melting steel did not cause the collapse, heated and weakened steel supports did. It's possible, at least, that the heat in the debris caused by fires could have melted steel, though I'm doubtful. You said it yourself, nobody actually tested the metals. How do you know it was steel?
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Re: WTC7: NIST Finally Admits Freefall (HOLY SNIKIES!)

Postby jonesthecurl on Sat Dec 13, 2008 1:02 am

Lord, there's a lot of stuff on this thread.
I have not the expertise to judge one account against another.
I do remember being surprised at the the way that the towers collapsed vertically, purely because the incident occured just a few weeks after I had happened to read an article (I don't know where - New Scientist maybe?) about how difficult is was to demolish tall buildings in a city environment without damaging surrounding buildings.
I also remember the same doubt being raised at the time, and an account in Private Eye (I think) suggesting that the reason for the collapse was the difference between the specifications for the buildings and the actual construction - i.e. skimping in construction leading to weakness which made it easier for the buildings to collapse.
I don't believe in the conspiracy theory of deliberate sabotage by the powers-that -be, though I wouldn't contend that it is completely impossible (any more than I can disprove the existence of God) - but the idea that the carnage was exponentially increased due to shoddy construction (very possibly involving corruption and some point in the building/ safety inspection/ whatever process) would not even raise one of my eyebrows. NY crane safety inspections anyone?
And I find it comparatively easy to imagine that this "truth" (if such it is) is being covered up to protect the reputation and livelihood of important public figures. The other thing requires a whole different mindset.
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