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inert | A Wisdom Archive on inert | | inert A selection of articles related to inert | |
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inert, Inert, Inerting system
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| ARTICLES RELATED TO inert | | | |  inert: Encyclopedia II - Glass - Glass as a liquidOne common misconception is that glass is a super-cooled liquid of practically infinite viscosity when at room temperature. Supporting evidence that is often offered is that old windows are often thicker at the bottom than at the top. It is then assumed that the glass was once uniform, but has flowed to its new shape.
The likely source of this belief is that when panes of glass were commonly made by glassblowers, the technique that was used was to spin molten glass so as to create a round, mostly flat and even plate (the Crown ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid Read more here: » Glass: Encyclopedia II - Glass - Glass as a liquid |
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| | | | | inert: Encyclopedia II - Nitrogen - History Nitrogen (Latin nitrum, Greek Nitron meaning "native soda", "genes", "forming") is formally considered to have been discovered by Daniel Rutherford in 1772, who called it noxious air or fixed air. That there was a fraction of air that did not support combustion was well known to the late 18th century chemist. Nitrogen was also studied at about the same time by Carl Wilhelm Scheele, Henry Cavendish, and Joseph Priestley, who referred to it as burnt air or phlogisticated air. Nitrogen gas was inert eno ...
See also:Nitrogen, Nitrogen - Notable characteristics, Nitrogen - Applications, Nitrogen - Nitrogen Compounds, Nitrogen - Molecular nitrogen gas and liquid, Nitrogen - History, Nitrogen - Occurrence, Nitrogen - Compounds, Nitrogen - Biological role, Nitrogen - Isotopes, Nitrogen - Precautions Read more here: » Nitrogen: Encyclopedia II - Nitrogen - History |
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| | | | | inert: Encyclopedia II - Glass - Glass art Even with the availability of common glassware, hand blown or lampworked glassware remains popular for its artistry. Some artists in glass include Lino Tagliapietra, Sidney Waugh, Rene Lalique, Dale Chihuly, and Louis Comfort Tiffany, who were responsible for extraordinary glass objects. The term "crystal glass", derived from rock crystal, has come to denote high-grade colorless glass, often containing lead, and is sometimes ap ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid Read more here: » Glass: Encyclopedia II - Glass - Glass art |
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| | | | | inert: Encyclopedia II - Gas tungsten arc welding - Materials Gas tungsten arc welding is most commonly used to weld stainless steel and nonferrous materials, such as aluminum and magnesium, but it can be applied to nearly all metals, with notable exceptions being lead and zinc. Its applications involving carbon steels are limited not because of process restrictions, but because of the existence of more economical steel welding techniques, such as gas metal arc welding and shielded metal arc welding. Furthermore, GTAW can be performed in a variety of other-than-flat positions, depending on the skill of the welder and the materials being ...
See also:Gas tungsten arc welding, Gas tungsten arc welding - Development, Gas tungsten arc welding - Operation, Gas tungsten arc welding - Safety, Gas tungsten arc welding - Applications, Gas tungsten arc welding - Quality, Gas tungsten arc welding - Equipment, Gas tungsten arc welding - Welding torch, Gas tungsten arc welding - Power supply, Gas tungsten arc welding - Electrode, Gas tungsten arc welding - Shielding gas, Gas tungsten arc welding - Materials, Gas tungsten arc welding - Aluminum and magnesium, Gas tungsten arc welding - Steels, Gas tungsten arc welding - Dissimilar metals, Gas tungsten arc welding - Process variations, Gas tungsten arc welding - Pulsed-current, Gas tungsten arc welding - Dabber, Gas tungsten arc welding - Notes Read more here: » Gas tungsten arc welding: Encyclopedia II - Gas tungsten arc welding - Materials |
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| | | | | inert: Encyclopedia II - Ethanol fuel - Ethanol fuels Proposals to use alcohol as a fuel are generally concerned with its use in transportation, chiefly as a total or partial replacement for gasoline in cars and other road vehicles. However, other less conventional approaches have been advanced, such as the use of alcohol in fuel cells, either directly or as a feedstock for hydrogen production. In order to become a viable alternative fuel, ethanol must be shown to have a positive net energy; that is the ethanol you put in your car must have ...
See also:Ethanol fuel, Ethanol fuel - Ethanol fuels, Ethanol fuel - Production and Distribution, Ethanol fuel - Other alcohols, Ethanol fuel - Ethanol and hydrogen, Ethanol fuel - Alternate sources, Ethanol fuel - Net fuel energy balance, Ethanol fuel - Energy balance in the United States, Ethanol fuel - Arguments and criticisms, Ethanol fuel - Air pollution, Ethanol fuel - Fire safety, Ethanol fuel - Greenhouse gases, Ethanol fuel - Renewable resource, Ethanol fuel - Dependency on foreign oil and international crime, Ethanol fuel - Statism, Ethanol fuel - Cost, Ethanol fuel - Ethanol fuel in Colombia, Ethanol fuel - Ethanol fuel in Brazil, Ethanol fuel - Ethanol fuel in the United States, Ethanol fuel - Ethanol fuel in the Midwest, Ethanol fuel - U.S. National security Read more here: » Ethanol fuel: Encyclopedia II - Ethanol fuel - Ethanol fuels |
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| | | | | inert: Encyclopedia II - Chromatography - Immobilized metal ion affinity chromatography IMAC is a popular and powerful way to purify proteins. It is based on the specific coordinate covalent binding between histidine or other unique amino acids (either naturally present on the surface of the protein or grafted with recombinant DNA techniques) and various immobilized metal ions, such as copper, nickel, zinc, or iron.
Salt concentration is increased to produce later fractions.
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See also:Chromatography, Chromatography - History, Chromatography - Chromatography theory, Chromatography - Retention, Chromatography - Plate theory, Chromatography - Paper chromatography, Chromatography - Thin layer chromatography TLC, Chromatography - Column chromatography, Chromatography - Gas-liquid chromatography, Chromatography - Ion exchange chromatography, Chromatography - Immobilized metal ion affinity chromatography, Chromatography - High performance liquid chromatography HPLC, Chromatography - Normal phase NP liquid chromatography, Chromatography - Reversed phase RP liquid chromatography, Chromatography - Gel permeation chromatography, Chromatography - Affinity chromatography, Chromatography - Countercurrent chromatography Read more here: » Chromatography: Encyclopedia II - Chromatography - Immobilized metal ion affinity chromatography |
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| | | | | inert: Encyclopedia II - Circuit breaker - Low voltage European circuit breaker Photograph of the internal details of a 10 ampere European DIN rail mounted thermal-magnetic miniature circuit breaker. Circuit breakers such as this are the most common style in modern domestic consumer units and commercial electrical distribution boards throughout Europe. Unfortunately while the size and shape of the opening in the front and its elevation from the rail are standardised the arrangements for busbar connections are not so you should take care that the breaker you select fits the busbar in your board and preferably is t ...
See also:Circuit breaker, Circuit breaker - Low voltage European circuit breaker, Circuit breaker - Common trip breakers, Circuit breaker - Types of circuit breaker, Circuit breaker - High Voltage Circuit Breakers, Circuit breaker - Interrupting Principles for High-Voltage Circuit-Breakers, Circuit breaker - Brief History, Circuit breaker - Thermal blast chambers, Circuit breaker - Self blast chambers, Circuit breaker - Double motion of contacts, Circuit breaker - Comparison of single motion and double motion techniques, Circuit breaker - Thermal blast chamber with arc-assisted opening, Circuit breaker - Particular case of generator circuit-breakers, Circuit breaker - Evolution of tripping energy, Circuit breaker - Future perspectives, Circuit breaker - Other breakers Read more here: » Circuit breaker: Encyclopedia II - Circuit breaker - Low voltage European circuit breaker |
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| | | | | inert: Encyclopedia II - Circuit breaker - Types of circuit breaker There are many different technologies used in circuit breakers and they do not always fall into distinct categories. The following types are common in domestic, commercial and light industrial applications for low voltage (less than 1000 V) use.
MCB (Miniature Circuit Breaker)—rated current not more than 100 A. Trip characteristics normally not adjustable. Thermal or thermal-magnetic operation. Breakers illustrated above are in this category.
MCCB (Moulded Case Circuit Breaker)—rated current up to 1000 A. Thermal or ...
See also:Circuit breaker, Circuit breaker - Low voltage European circuit breaker, Circuit breaker - Common trip breakers, Circuit breaker - Types of circuit breaker, Circuit breaker - High Voltage Circuit Breakers, Circuit breaker - Interrupting Principles for High-Voltage Circuit-Breakers, Circuit breaker - Brief History, Circuit breaker - Thermal blast chambers, Circuit breaker - Self blast chambers, Circuit breaker - Double motion of contacts, Circuit breaker - Comparison of single motion and double motion techniques, Circuit breaker - Thermal blast chamber with arc-assisted opening, Circuit breaker - Particular case of generator circuit-breakers, Circuit breaker - Evolution of tripping energy, Circuit breaker - Future perspectives, Circuit breaker - Other breakers Read more here: » Circuit breaker: Encyclopedia II - Circuit breaker - Types of circuit breaker |
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| | | | | inert: Encyclopedia II - Doping semiconductor - Compensation In most cases, many types of impurity will be present. If an equal number of donors and acceptors are present in the semiconductor, the extra electrons provided by the former will be used to satisfy the broken bonds due to the latter, so that doping produces no free carriers of either type. This phenomenon is known as compensation, and occurs at the p-n junction in the vast majority of semiconductor devices. Partial compensation, where donors outnumber acceptors or vice-versa, allows device makers to repeatedly reverse the type of a given portion of the mater ...
See also:Doping semiconductor, Doping semiconductor - Dopant elements, Doping semiconductor - Group IV semiconductors, Doping semiconductor - III-V and II-VI semiconductors, Doping semiconductor - Compensation, Doping semiconductor - Doping in organic conductors Read more here: » Doping semiconductor: Encyclopedia II - Doping semiconductor - Compensation |
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| | | | | inert: Encyclopedia II - Chromatography - Ion exchange chromatography Ion exchange chromatography is a column chromatography that uses a charged stationary phase. It is used to separate charged compounds including amino acids, peptides, and proteins. The stationary phase is usually an ion exchange resin that carries charged functional groups which interact with oppositely charged groups of the compound to be retained:
Positively charged ion exchanger (anion exchanger) interacts with anions
Negatively charged ion exchanger (cation exchanger) interacts with cations.
Bound compounds can be eluted from the column by gradient elution with an i ...
See also:Chromatography, Chromatography - History, Chromatography - Chromatography theory, Chromatography - Retention, Chromatography - Plate theory, Chromatography - Paper chromatography, Chromatography - Thin layer chromatography TLC, Chromatography - Column chromatography, Chromatography - Gas-liquid chromatography, Chromatography - Ion exchange chromatography, Chromatography - Immobilized metal ion affinity chromatography, Chromatography - High performance liquid chromatography HPLC, Chromatography - Normal phase NP liquid chromatography, Chromatography - Reversed phase RP liquid chromatography, Chromatography - Gel permeation chromatography, Chromatography - Affinity chromatography, Chromatography - Countercurrent chromatography Read more here: » Chromatography: Encyclopedia II - Chromatography - Ion exchange chromatography |
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| | | | | inert: Encyclopedia II - Pastel - Artists The 18th-century painters Maurice Quentin de La Tour (illustration, right) and Rosalba Carriera were especially known for their pastel technique.
The 19th-Century French painter Edgar Degas was well known for his works in pastel, among other media.
United Kingdom artist Anne Sudworth works exclusively in soft pastel.
Contemporary American artists who use the medium of pastel include Larry Blovits, Wende Caporale, Ernie Centofanti, Tim Gaydos, Daniel Greene, Wolf Kahn, and Madlyn-Ann C. Woolwich. In 1972 the Pastel Society of America was founded to further promote the medium and ...
See also:Pastel, Pastel - Media, Pastel - Artists Read more here: » Pastel: Encyclopedia II - Pastel - Artists |
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| | | | | inert: Encyclopedia II - Chromatography - Gas-liquid chromatography Gas-liquid chromatography is based on a partition equilibrium of analyte between a liquid stationary phase and a mobile gas. It is useful for a wide range of non-polar analytes, but poor for thermally labile molecules.
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See also:Chromatography, Chromatography - History, Chromatography - Chromatography theory, Chromatography - Retention, Chromatography - Plate theory, Chromatography - Paper chromatography, Chromatography - Thin layer chromatography TLC, Chromatography - Column chromatography, Chromatography - Gas-liquid chromatography, Chromatography - Ion exchange chromatography, Chromatography - Immobilized metal ion affinity chromatography, Chromatography - High performance liquid chromatography HPLC, Chromatography - Normal phase NP liquid chromatography, Chromatography - Reversed phase RP liquid chromatography, Chromatography - Gel permeation chromatography, Chromatography - Affinity chromatography, Chromatography - Countercurrent chromatography Read more here: » Chromatography: Encyclopedia II - Chromatography - Gas-liquid chromatography |
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| | | | | inert: Encyclopedia II - Plutonium - History Initially predicted by Walter Russell, the production of plutonium and neptunium by bombarding uranium-238 with neutrons was predicted in 1940 by two teams working independently: Edwin M. McMillan and Philip Abelson at Berkeley Radiation Laboratory at the University of California, Berkeley and by Norman Feather & Egon Bretscher at the Cavendish Laboratory at University of Cambridge. Coincidentally both teams proposed the same names to follow on from uranium, li ...
See also:Plutonium, Plutonium - Notable characteristics, Plutonium - Applications, Plutonium - History, Plutonium - Occurrence, Plutonium - Manufacture, Plutonium - Compounds, Plutonium - Allotropes, Plutonium - Isotopes, Plutonium - Precautions Read more here: » Plutonium: Encyclopedia II - Plutonium - History |
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| | | | | inert: Encyclopedia II - Plutonium - Applications The isotope Plutonium-239 is a key fissile component in modern nuclear weapons, due to its ease of fissioning and availability. The critical mass for an unreflected sphere of plutonium is 16 kg, but through the use of a neutron reflecting tamper the pit of plutonium in a fission bomb is reduced to 10 kg, which is a sphere with a diameter of 10 cm. Complete detonation of plutonium will produce an explosion of 20 kilotons of TNT per kilogram. (See also Nuclear Weapon Design.)
Plutonium could also be used to manufacture radiological weapons ...
See also:Plutonium, Plutonium - Notable characteristics, Plutonium - Applications, Plutonium - History, Plutonium - Occurrence, Plutonium - Manufacture, Plutonium - Compounds, Plutonium - Allotropes, Plutonium - Isotopes, Plutonium - Precautions Read more here: » Plutonium: Encyclopedia II - Plutonium - Applications |
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| | | | | inert: Encyclopedia II - Plutonium - Notable characteristics Plutonium is silvery in pure form, but has a yellow tarnish when oxidized. Peculiarly, the metal goes through phases of contraction as its temperature is increased.
The heat given off by alpha particle emission makes plutonium warm to the touch in reasonable quantities; larger amounts can boil water. It displays four ionic oxidation states in aqueous solution:
Pu3+ (blue lavender)
Pu4+ (yellow brown)
PuO2+ (pink orange)
PuO+ (thought to be pink; this i ...
See also:Plutonium, Plutonium - Notable characteristics, Plutonium - Applications, Plutonium - History, Plutonium - Occurrence, Plutonium - Manufacture, Plutonium - Compounds, Plutonium - Allotropes, Plutonium - Isotopes, Plutonium - Precautions Read more here: » Plutonium: Encyclopedia II - Plutonium - Notable characteristics |
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| | | | | inert: Encyclopedia II - Diamond simulant - Composites Because strontium titanate and glass are too soft to survive use as a ring stone, they have been used in the construction of composite or doublet diamond simulants. The two materials are used for the bottom portion (pavilion) of the stone, and in the case of strontium titanate, a much harder material—usually colorless synthetic spinel or sapphire—is used for the top half (crown). In glass doublets, the top portion is made of almandine garnet; it is usually a very thin slice which does not modify the stone's overall body color. The ...
See also:Diamond simulant, Diamond simulant - Desired and differential properties, Diamond simulant - Durability and density, Diamond simulant - Optics and color, Diamond simulant - Thermal and electrical, Diamond simulant - Artificial simulants, Diamond simulant - Summary table, Diamond simulant - 1700 onwards, Diamond simulant - 1900–1947, Diamond simulant - 1947–1970, Diamond simulant - 1970–1976, Diamond simulant - 1976 to present, Diamond simulant - Natural simulants, Diamond simulant - Composites Read more here: » Diamond simulant: Encyclopedia II - Diamond simulant - Composites |
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| | | | | inert: Encyclopedia II - Diamond simulant - Natural simulants Natural minerals that (when cut) optically resemble white diamonds are rare, because the trace impurities usually present in natural minerals tend to impart color. The earliest simulants of diamond were colorless quartz, topaz, and beryl (goshenite); they are all common minerals with above-average hardness (7–8), but all have low RIs and correspondingly low dispersions. Well-formed quartz crystals are sometimes offered as "diamonds," a popular example being the so-called "Herkimer diamonds" mined in Herkimer County, New York. Topaz's SG ...
See also:Diamond simulant, Diamond simulant - Desired and differential properties, Diamond simulant - Durability and density, Diamond simulant - Optics and color, Diamond simulant - Thermal and electrical, Diamond simulant - Artificial simulants, Diamond simulant - Summary table, Diamond simulant - 1700 onwards, Diamond simulant - 1900–1947, Diamond simulant - 1947–1970, Diamond simulant - 1970–1976, Diamond simulant - 1976 to present, Diamond simulant - Natural simulants, Diamond simulant - Composites Read more here: » Diamond simulant: Encyclopedia II - Diamond simulant - Natural simulants |
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| | | | | inert: Encyclopedia II - Dental amalgam controversy - History of controversy In 1840 the only official dentist organisation in existence, the American Society of Dental Surgeons, which had promoted mercury amalgams since its inception, had members sign a mandatory pledge promising not to use mercury fillings because of fear of mercury poisoning in patients and dentists. It must be noted that in 1840 dentists mixed the amalgam themselves in their office, making the office a source of poisonous levels of mercury.
The American Society of Dental Surgeons however pointed out that amalgams are toxic in the mouth and ...
See also:Dental amalgam controversy, Dental amalgam controversy - History of dental amalgam, Dental amalgam controversy - Appearance, Dental amalgam controversy - History of controversy, Dental amalgam controversy - Composition, Dental amalgam controversy - Regulation, Dental amalgam controversy - Environmental impact, Dental amalgam controversy - Amalgams and Alternative Medicine Read more here: » Dental amalgam controversy: Encyclopedia II - Dental amalgam controversy - History of controversy |
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| | | | | inert: Encyclopedia II - Dental amalgam controversy - Appearance One obvious disadvantage of using amalgams for fillings is they look unattractive. The material is black (silver if an abrasive toothpaste is used) and can clearly be seen on, and sometimes behind, a tooth. For this reason alone, amalgam fillings are seldom used in the front teeth. There are, however, still dentists who use them in the back teeth, especially since dental amalgams are generally considered to be somewhat tougher wearing than most composite fillings. An advantage of amalgam fillings is the antiseptic properties inherent in them ...
See also:Dental amalgam controversy, Dental amalgam controversy - History of dental amalgam, Dental amalgam controversy - Appearance, Dental amalgam controversy - History of controversy, Dental amalgam controversy - Composition, Dental amalgam controversy - Regulation, Dental amalgam controversy - Environmental impact, Dental amalgam controversy - Amalgams and Alternative Medicine Read more here: » Dental amalgam controversy: Encyclopedia II - Dental amalgam controversy - Appearance |
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| | | | | inert: Encyclopedia II - Glass - Glass as a liquid One common belief is that glass is a super-cooled liquid of practically infinite viscosity when at room temperature. Supporting evidence for this position is that old windows are often thicker at the bottom than at the top. It is then assumed that the glass was once uniform, but has flowed to its new shape.
One possible source of this belief is that when panes of glass were commonly made by glassblowers, the technique that was used was to spin molten glass so as to create a round, mostly flat and even plate (the Crown glass pro ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid, Glass - Evidence against glass flow Read more here: » Glass: Encyclopedia II - Glass - Glass as a liquid |
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| | | | | inert: Encyclopedia II - Glass - History of glass Naturally occurring glass, such as obsidian, has been used since the stone age. The first documented instructions for glass making is in Egypt around 1500 BC, when glass was used as a glaze for pottery and other items. In the first century BC the technique of blowing glass was developed and what had once been an extremely rare and valuable item became much more common. During the Roman Empire many forms of glass were created, usually for vases and bottles. Glass was made from sand, plant ash and lime. The earliest use of glass was as a color ...
See also:Glass, Glass - Properties and Uses, Glass - Glass Ingredients, Glass - Glass as a polymer, Glass - Colors, Glass - History of glass, Glass - Glass tools, Glass - Glass art, Glass - Architectural glass, Glass - Float annealed glass, Glass - Sheet glass, Glass - Plate glass, Glass - Cylinder glass, Glass - Insulated glazing, Glass - Toughened glass, Glass - Laminated glass, Glass - Low-emissivity glass, Glass - Self-cleaning glass, Glass - Evacuated glazing, Glass - Glass as a liquid, Glass - Evidence against glass flow Read more here: » Glass: Encyclopedia II - Glass - History of glass |
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