Showing posts with label Molten Metal. Show all posts
Showing posts with label Molten Metal. Show all posts

February 11, 2008

9/11 Cartoon: Steel Melting Double Straw-man



9/11 Cartoon: Steel Melting Double Straw-man

By Arabesque

A blog entitled Respectful Insolence posts a 9/11 Cartoon The "troof" hurts...

The cartoon asks the question "can fire melt steel" and gives a misleading answer.

Yes, fire can melt steel, but only in special conditions as Dr. Thomas Eagar explains:

“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.... The temperature of the fire at the WTC was not unusual, and it was most definitely not capable of melting steel. In combustion science, there are three basic types of flames, namely, a jet burner, a premixed flame, and a diffuse flame.... In a diffuse flame, the fuel and the oxidant are not mixed before ignition, but flow together in an uncontrolled manner and combust when the fuel/oxidant ratios reach values within the flammable range. A fireplace is a diffuse flame burning in air, as was the WTC fire. Diffuse flames generate the lowest heat intensities of the three flame types... The maximum flame temperature increase for burning hydrocarbons (jet fuel) in air is, thus, about 1000 °C -- hardly sufficient to melt steel at 1500 °C.” Eagar, T. W. and Musso, C. (2001). “Why Did the World Trade Center Collapse? Science, Engineering, and Speculation”, Journal of the Minerals, Metals and Materials Society, 53/12:8-11 (2001).
Ironically, this cartoon found underneath the blogger's tagline, "The miscellaneous ramblings of a surgeon/scientist on medicine, quackery, science, pseudoscience" is actually a double straw-man. First of all the NIST report denies molten steel (likely because acknowledging molten steel would be very problematic for the official story--in contrast to what this cartoon would have us believe). Secondly, molten steel can only occur with the conditions described above by Eagar.

Did the steel melt at the WTC as denied by NIST? According to eyewitness testimony of "pools of molten metal", analysis, and other evidence; yes it did. With very unusual temperatures.
"The temperatures required for the observed spherule-formation and evaporation of materials observed in the WTC dust (table 1) are significantly higher than temperatures reachable by the burning of jet fuel and office materials in the WTC buildings (table 2). The temperatures required to melt iron (1,538 °C) and molybdenum (2,623 °C), and to vaporize lead (1,740 °C) and aluminosilicates (~2,760°C), are completely out of reach of the fires in the WTC buildings (maximum 1,100 °C). We wish to call attention to this discrepancy: the official view implicating fires as the main cause for the ultimate collapses of the WTC Towers and WTC 7 (FEMA [13], NIST [15] ) is inadequate to explain this temperature gap and is therefore incomplete at best. The formation of numerous metal-rich spherules is also remarkable, for it implies formation of high-temperature droplets of the molten metals, dispersed in the air where they cool to form spherules." Extremely high temperatures during the World Trade Center destruction, Steven E. Jones, Jeffrey Farrer, Gregory S. Jenkins, Frank Legge, James Gourley, Kevin Ryan, Daniel Farnsworth, and Crockett Grabbe.
Is this the only evidence of molten steel? Hardly. In fact, "a fire protection engineer and two science professors" published a brief report about steel taken from Building 7, revealing:

"a phenomenon never before observed in building fires: eutectic reactions, which caused "intergranular melting capable of turning a solid steel girder into Swiss cheese." The New York Times described this as "perhaps the deepest mystery uncovered in the investigation."
What does it all mean? The NIST report denies this evidence even though some of it made its way into the previous FEMA report. This is exemplified by John Gross, who denied the existence of molten steel:



There is compelling evidence that the steel melted, and no official explanation has been given. Instead, official reports have been forced to deny the existence of molten steel to support the official story that fires caused the Towers and Building 7 to collapse.

Contrary to the insinuations of this cartoon, the truth is more complicated than the question: "can fire melt steel?" Indeed it can, but not in the conditions we are told existed within the World Trade Center on 9/11. It is an indisputable fact that jet fuel fires cannot reach the temperatures needed to melt steel. Not only this, the buildings were designed to survive plane crashes and jet fuel fires of the kind seen on 9/11.

Scholars for 9/11 Truth and Justice, Architects for 9/11 Truth, and others are calling for an investigation to answer what really caused the molten steel and the unusual temperatures observed.

June 20, 2007

Physical Chemistry Aspects of Thermite, Thermate, Iron-Aluminum-Rich Microspheres



Some Physical Chemistry Aspects of Thermite, Thermate, Iron-Aluminum-Rich Microspheres, the Eutectic, and the Iron-Sulfur System as Applied to the Demise of Three World Trade Center Buildings on 9/11/2001

Jerry Lobdill

Introduction

It has been established through a study of the photographic and video evidence that there were a number of instances of white-hot areas that produced glowing liquid flows from window openings on the 80th to 82nd floor of WTC 2 that persisted for quite a number of seconds.

According to the NIST FAQ1 these events came within the last 7 minutes before WTC 2 began its collapse. White-hot temperatures cannot be produced by ordinary fires. These observations have therefore been conclusively shown to be incendiary events. This fact is inconsistent with any theory of collapse except controlled demolition. Yet the official story remains that the buildings were brought down by fires and damage to the structural members of the buildings resulting from the impact of the planes The WTC 7 wasn’t even hit by a plane, yet it is claimed that it was brought down by fires.

All three buildings, WTC 1, WTC 2 and WTC 7 were subjects of many video documents that remain today as some of the very best evidence for controlled demolition that we have. It is clear from the videos that explosives were used. The evidence for incendiary cutting of steel consists of the video evidence, the forensic evidence in the dust and rubble, and the testimony of eyewitness early responders and survivors who saw glowing molten metal flowing out of window openings.  This paper deals with the incendiary events and the forensic evidence that remains to prove that the official story is wrong. Specifically, this paper discusses the chemistry of iron-aluminum-rich microspheres that are found in the dust from the rubble, the chemical content of these microspheres and the physical chemistry of the iron-sulfur-oxygen system since sulfur is one of the omnipresent elements in the iron-aluminum-rich microspheres and was also found in a metallurgical study of structural iron from the WTC 72.

Dr. Steven Jones discovered the iron-aluminum-rich microspheres and has analyzed their elemental composition using XEDS analysis.3 This discovery, of recent date, is a very important addition to the body of evidence that disproves the official story. At the present time the interpretation of these microspheres is still under discussion as is the composition of the incendiary they imply.

[…]

About Thermite

The evidence is overwhelming that thermite or a thermite-like mixture was used in the WTC 2 tower very shortly before the building fell. What was the purpose of this? Thermite has been used to weld railroad rail sections together and also to cut structural steel. It has also been used for military purposes such as destroying guns and other weapons, disabling engines, and to rapidly destroy cryptographic machines. It appears that in the WTC it was used to cut structural steel in an early phase of controlled demolition. This use implies that whatever the task, it must be completed in the last minute or so before the building begins to fall. Any chemical process that continues after the primary task is completed is simply an unavoidable sequela of the primary purpose.

An excellent article on thermite is posted in wikipedia at http://en.wikipedia.org/wiki/Thermite#Types.

There are a number of possible reactions that could produce large amounts of heat that could be used to melt (cut) steel. For example,

Fe2O3 + 2Al _ Al2O3 + 2Fe

3FeO + 2Al _ Al2O3 + 3Fe

3Fe3O4 + 8Al _ 4Al2O3 + 9Fe

3CuO + 2Al _ Al2O3 + 3Cu

[…]

The observations of Barnett, Biederman, and Sisson (BB&S) (See Footnote 2) describe sulfidation of some structural steel from WTC 7. They say:

“Rapid deterioration of the steel was a result of heating with oxidation in combination with intergranular melting due to the presence of sulfur. The formation of the eutectic mixture of iron oxide and iron sulfide lowers the temperature at which liquid can form in this steel. This strongly suggests that the temperatures in this region of the steel beam approached ~1000 C, forming the eutectic liquid by a process similar to making a “blacksmith’s weld” in a hand forge.”9

And they conclude:

“The severe corrosion and subsequent erosion of Samples 1 and 210 are a very unusual event. No clear explanation for the source of the sulfur has been identified. The rate of corrosion is also unknown. It is possible that this is the result of long-term heating in the ground following the collapse of the buildings. It is also possible that the phenomenon started prior to collapse and accelerated the weakening of the steel structure.”

We should take note of the fact that they are saying they have no idea of the rapidity of the sulfidation and oxidation process or when it began. They also seem to be aware of the fact that there were large volumes of red hot metal below the rubble piles. (This is rather interesting since NIST, their sponsor, claims they are unaware of any such thing.)11

[…]

About the iron-aluminum-rich microspheres

Dr. Jones13 found these microspheres in WTC dust that deposited in an apartment about 100 yards away from one of the towers. They contain Fe, Al, S, K, Mn and other elements in small percentages. Iron is a major component of these objects.

The spherical shape of the microspheres is caused by surface tension acting on tiny molten droplets. This is the only mechanism by which the spherical shape can be explained. Therefore, these microspheres are proof that molten iron was produced in the process that caused the demise of the WTC towers, a remarkable fact that does not fit the official story. Some of these microspheres are hollow, and Dr. Jones has determined that the inside surface of these spheres contain sulfur. This is consistent with a molten droplet containing some gaseous sulfur. The physics of this situation is the same as for bubbles. The surface tension and the internal gas pressure cause the radius of the bubble to adjust to balance these two forces.

Conclusions

This paper has discussed some physical chemistry aspects of thermite and thermate and shown how science explains the existence of iron-aluminum-rich microspheres, why some microspheres are hollow, and why the metallurgical forensic study produced the results it did. The thermodynamic analysis has provided an understanding of how much thermite is needed to cut away a given amount of steel at 100% efficiency. The complexity of the chemistry involved has been illuminated.

These analyses enhance our understanding of the evidence that proves the use of incendiary devices in demolition of the WTC buildings.

Read more at the Journal of 9/11 Studies:

http://www.journalof911studies.com/volume/200704/JLobdillThermiteChemistryWTC.pdf

May 24, 2007

9/11 Debunkers Hide From Slam Dunk Evidence Of Controlled Demolition



Paul Joseph Watson
Prison Planet
Tuesday, May 22, 2007

Professor Steven Jones presented brand new and compelling evidence for the controlled demolition of the twin towers and WTC 7 recently, but the 9/11 debunkers and the corporate media are loathe to tackle it because it represents a slam dunk on proving the collapse of the buildings was a deliberate act of arson.

During a talk at the Rebuilding America's Senses event at the University of Texas last month, Jones laid out facts about steel samples recovered from the WTC site that Popular Mechanics dare not even attempt to debate. Debunkers are scared to even get near this information because the science behind it fundamentally contradicts the official story of what happened on 9/11.

Jones detailed his lab experiments in which he attempted to replicate NIST's conclusion that the lava like orange material flowing out of the south tower is aluminum from Flight 175, the plane that hit the building. Jones clearly documents the fact that liquid aluminum is silver and not orange as is seen in the video of the south tower, therefore the material cannot be aluminum. Jones then explains that the material is in fact a compound that can cut through steel like a hot knife through butter, thermite with sulphur added to make thermate.

The crux of the fresh evidence revolves around newly uncovered globules or spheres that were discovered at the WTC site that Professor Jones was able to obtain and run a electron microscope analysis on.

The spheres contained iron and aluminum, which would be expected in any steel sample, but also sulphur which is a by-product of a thermate reaction.

Prison Planet.tv members can watch this groundbreaking presentation right now. Subscribe here to get access to this and hundreds of other special video reports.

So having moved from a hypothesis that thermate was used to bring down the towers from using video footage and debunking the aluminum explanation of NIST, Jones now has empirical scientific proof, undertaken under laboratory conditions, that thermate was indeed used as an artificial explosive at the World Trade Center.

It has now been proven beyond a shadow of a doubt that the collapse of the twin towers and WTC 7 was an act of deliberate arson and not as a result of fires from crashing planes.

Jones' evidence offers no other conclusion that insiders planted thermite devices within the buildings to literally pulverize the supporting columns and cause the collapse of the towers and also WTC 7. Debunkers have uniformly failed to address the existence of thermite and also molten metal at the ground zero site because they cannot dismiss the scientific proof, and are forced to resort to ad hominem insults and smears.

We are issuing a challenge to Popular Mechanics to rebut Professor Jones' analysis of the sphere samples and the clear evidence of thermate at the World Trade Center. Address the focused scientific proof without resorting to ad hominem attacks or straying off topic.

We don't expect the progenitors of yellow journalism to have any answers for what constitutes the smoking gun of controlled demolition.

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