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| Glass a "Rare Find" at Ground Zero | |
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| Tweet Topic Started: Jan 9 2010, 07:13 PM (2,525 Views) | |
| Matt | Jan 9 2010, 07:13 PM Post #1 |
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- NYPD Police Museum exhibit "9/11 Remembered" - photo source lost, but similar photos found here and here
- FDNY Engine 285 firefighter in "Collateral Damages" (2006, Turn of the Century Pictures, Inc.)
- Chief Daniel Nigro (FDNY Chief of Department 2001-2) in "Conspiracy Files – 9/11: The Third Tower," BBC TV 2008 — watch
- FDNY Engine 7's Joe Casaliggi in the Naudet documentary "9/11" at vrt 1:25:20 in TV version at http://www.911conspiracy.tv/mainstream_documentaries.html ABC News report Sept. 13: 600,000 square feet of glass in the towers. Dr. Stephen Levin mentions "fine glass powder" at vrt 1:53. 43,600 windows were a rare find in the debris pile. Let's ask why. ABOUT THE WINDOWS
- Angus Gillespie, Twin Towers: The Life of New York City's World Trade Center, Rutgers University Press, New Brunswick, NJ, 1999, p. 81.
- Gillespie, p. 108 (The glass itself was eighteen and a half inches wide. The 107th floor of the North Tower had 30-inch wide windows, for the Windows on the World restaurant. Likewise, "extra-wide windows" were needed for the observation deck of the South Tower.[p. 216]) "The columns are twelve inches deep from the outer skin of the aluminum to the glass...." [ p. 167] (bonus detail) The windows spanned from floor to ceiling. Gillespie estimates the surface area of the towers to be about 30% glass (p. 165), as opposed to the predominant style of modern architecture known as the "International Style," which uses on average about 60% glass.
-p. 215 MOSTLY GONE WITH THE WIND OK, there was a lot of glass! Where did it go, if not into the clouds of dust?
http://pubs.usgs.gov/of/2001/ofr-01-0429/#ExecutiveSummary More specifically, glass fiber made up 40 percent of all the samples collected and studied by Paul J. Lioy, et. al. (http://ehp.niehs.nih.gov/members/2002/110p703-714lioy/lioy-full.html): ![]() It is important to know that the windows weren't the only form of glass in the place. Not only were there light fixtures, TVs and monitors, but also there was fiberglass insulation. "These three [dust] samples were composed primarily of construction materials, soot, paint (leaded and unleaded), and glass fibers (mineral wool and fiberglass) ." (Lioy, et. al.)
- Lioy, et. al. ![]() Figure 4. "Glass fiber detected in the Market Street sample."
The <a target="_blank" href="http://pubs.usgs.gov/of/2001/ofr-01-0429/spectra/index.html">USGS Spectroscopy Lab</a> provides an important detail:
However, this may be misleading because the first sentence in the paragraph read: "SEM energy dispersive analysis indicates fibrous glass with elemental composition closely matched by slag wool in all dust samples analyzed by this method." This still does not rule out the presence of glass SHARDS.
- Maoxin Wu, et. al., "Case Report: Lung Disease in World Trade Center Responders Exposed to Dust and Smoke: Carbon Nanotubes Found in the Lungs of World Trade Center Patients and Dust Samples" (emphasis added) Another dust study gives us this: ![]() source: http://pubs.usgs.gov/of/2001/ofr-01-0429/chem1/index.html It's important to consider that Silicon is the 8th most abundant element in the universe (according to http://en.wikipedia.org/wiki/Silicon ), so it's a large part of concrete also. BUT, more important, Silicon makes up about 70% of most glass. SiO2 is mixed with other materials to lower the melting point to about 1500 °C (2700 °F) -- see http://en.wikipedia.org/wiki/Glass -- so if the NYPD Museum is correct and the glass did melt, there were some really freaking hot temperatures going on! AND THERE WERE. (See "Molten Steel & Extreme Temperatures at WTC") Could a building collapse have pulverized the bulk of the extra-strong glass into such a huge quantity of microscopic shards? I think not. * UPDATE * One professional source claims there were large quantities of glass recovered. Their number is hilarious. Either they were counting the omnipresent, vitreous dust... or they were including the 600,000 square feet of glass once a part of the towers, assumed to be there in the debris pile.
- Phillips & Jordan, Inc., "Anatomy: World Trade Center/Staten Island Landfill Recovery Operation," Phillips & Jordan, Inc., p. 2. Document originally at the Disaster Recovery Group web site (dead link) but cached at 911depository.info/PDFs/Other%20Reports/Phillip... There also we can read: "Phillips and Jordan, Inc. (P&J) was called to New York by the U.S. Army Corps of Engineers. P&J was tasked by the Corps as their Advanced Contracting Initiative (ACI) Disaster Debris Management Contractor to serve in a strategic planning and monitoring role." These people were not on the pile in the bucket lines, digging in those first hours. They only know there SHOULD HAVE BEEN tons of glass. * UPDATE 2 * Please scan through the published work of Steven E. Jones, Jeffrey Farrer, Gregory S. Jenkins, Frank Legge, James Gourley, Kevin Ryan, Daniel Farnsworth, and Crockett Grabbe, "Extremely high temperatures during the World Trade Center destruction." In addition to elemental composition analysis using a scanning electron microscope, you will find this micrograph, or optical microscope image of WTC dust plainly showing dried molten metal and silicate, or glass: ![]() ** UPDATE 3 ** Engineer Mark Basile discusses his personal examination of the WTC dust in this video presentation, and at this specific spot describes once-molten silicate spheres -- with magnetic properties. Edited by Matt, Apr 24 2011, 01:51 PM.
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| Matt | Apr 24 2011, 03:05 PM Post #2 |
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Did some reading. Found some relevant quotes:
- Paul J. Lioy, Dust: The Inside Story of Its Role in the September 11th Aftermath, Rowman & Littlefield, New York, 2010, p. 96.
- Paul J. Lioy, Ibid., pp. 96-97.
- Paul J. Lioy, Ibid., p. 101. …as opposed to the abundant, microscopic, fibrous glass which is hard to understand, right?
- Paul J. Lioy, Ibid., p. 105.
- Paul J. Lioy, Ibid., p. 111. Chapter 8 of the Lioy book quoted above is here. Many interesting factoids in there, including notes of "charred woody fragments" in all of the WTC dust samples. Not once does Lioy consider any "conspiracy theories," of course. At least not in chapter 8, which I read first. "The penta-mixture (BDE-47, BDE-99, and BDE-100) detected in the WTC dust was used in flame retardants for polyurethane foam, which is common as padding in office furniture. The highest BDE concentration was for BDE-209, which is used as part of thermoplastics in computers." - p. 118. ... The point being that much of the furnished 12 million square feet of office space was pulverized (or exploded) into dust. And not much of that - next to nothing from what numerous sources say in the video compilation below - was recognizable. ![]() http://www.youtube.com/watch?v=QnnXTrw88P4 |
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7:26 PM Jul 10