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Vitrolite
Pigmented structural glass, also known generically as structural glass and as vitreous marble, and marketed under the names Carrara glass, Sani Onyx, and Vitrolite, among others, is a high-strength, colored glass. Developed in the United States in 1900, it was widely used around the world in the first half of the 20th century in Art Deco and Streamline Moderne buildings. It also found use as a material for signs, tables, and areas requiring a hygienic surface. Over time, the trademarked name "vitrolite" became a generic term for the glass. Overview Pigmented structural glass was developed in 1900 in the United States by the Marrietta Manufacturing Company of Indianapolis, Indiana. The product was made by combining borax, cryolite, kaolinite, manganese, silica, feldspar, and fluorite, fluorspar. The fluorides made the glass opaque. These materials were fused into glass at a temperature of and then Annealing (glass), annealed. The annealing process took much longer than it did for ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Express Building
Express or EXPRESS may refer to: Arts, entertainment, and media Films * '' Express: Aisle to Glory'', a 1998 comedy short film featuring Kal Penn * '' The Express: The Ernie Davis Story'', a 2008 film starring Dennis Quaid Music * ''Express'' (album), by Love and Rockets, 1986 * "Express" (Christina Aguilera song), 2010 * "Express" (Dina Carroll song), a song by Dina Carroll from the 1993 album ''So Close'' * "Express" (B. T. Express song), 1975 Periodicals * ''Express'' (Cologne newspaper), a daily tabloid newspaper in Germany * ''Express'' (Washington, D.C. newspaper), a defunct free daily in Washington, D.C., U.S. * ''Express'', a daily financial newspaper in Greece * ''Express'', a city supplement published by ''The New Indian Express'' newspaper * ''Daily Express'' (Urdu newspaper), an Urdu-language Pakistani newspaper * '' Daily Express'', a British newspaper * '' Gazeta Express'', a newspaper in Pristina, Kosovo * '' L'Express'', a French magazine * ''Los Angeles ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compressive Strength
In mechanics, compressive strength or compression strength is the capacity of a material or structure to withstand loads tending to reduce size (as opposed to tensile strength which withstands loads tending to elongate). In other words, compressive strength resists compression (being pushed together), whereas tensile strength resists tension (being pulled apart). In the study of strength of materials, tensile strength, compressive strength, and shear strength can be analyzed independently. Some materials fracture at their compressive strength limit; others deform irreversibly, so a given amount of deformation may be considered as the limit for compressive load. Compressive strength is a key value for design of structures. Compressive strength is often measured on a universal testing machine. Measurements of compressive strength are affected by the specific test method and conditions of measurement. Compressive strengths are usually reported in relationship to a specific tec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chicago
(''City in a Garden''); I Will , image_map = , map_caption = Interactive Map of Chicago , coordinates = , coordinates_footnotes = , subdivision_type = Country , subdivision_name = United States , subdivision_type1 = State , subdivision_type2 = Counties , subdivision_name1 = Illinois , subdivision_name2 = Cook and DuPage , established_title = Settled , established_date = , established_title2 = Incorporated (city) , established_date2 = , founder = Jean Baptiste Point du Sable , government_type = Mayor–council , governing_body = Chicago City Council , leader_title = Mayor , leader_name = Lori Lightfoot ( D) , leader_title1 = City Clerk , leader_name1 = Anna Valencia ( D) , unit_pref = Imperial , area_footnotes = , area_tot ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Generic Trademark
A generic trademark, also known as a genericized trademark or proprietary eponym, is a trademark or brand name that, because of its popularity or significance, has become the generic term for, or synonymous with, a general class of products or services, usually against the intentions of the trademark's owner. A trademark is said to become ''genericized''—or, informally, to have suffered ''genericide''—when it begins as a distinctive product identifier but changes in meaning to become generic. This typically happens when the products or services which the trademark is associated with have acquired substantial market dominance or mind share, such that the primary meaning of the genericized trademark becomes the product or service itself rather than an indication of source for the product or service. A trademark thus popularised has its legal protection at risk in some countries such as the United States and United Kingdom, as its intellectual property rights in the trademark ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carrara Marble
Carrara marble, Luna marble to the Romans, is a type of white or blue-grey marble popular for use in sculpture and building decor. It has been quarried since Roman times in the mountains just outside the city of Carrara in the province of Massa and Carrara in the Lunigiana, the northernmost tip of modern-day Tuscany, Italy. More marble has been extracted from the over 650 quarry sites near Carrara than from any other place. The pure white ''statuario'' grade was used for monumental sculpture, as "it has a high tensile strength, can take a high gloss polish and holds very fine detail".Kings By the late 20th century this had now run out, and the considerable ongoing production is of stone with a greyish tint, or streaks of black or grey on white. This is still attractive as an architectural facing, or for tiles. History Carrara marble has been used since the time of Ancient Rome then called the "Luna marble". In the Middle Ages, most of the quarries were owned by the Marquis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PPG Industries
PPG Industries, Inc. is an American Fortune 500 company and global supplier of paints, coatings, and specialty materials. With headquarters in Pittsburgh, Pennsylvania, PPG operates in more than 70 countries around the globe. By revenue it is the largest coatings company in the world followed by AkzoNobel. It is headquartered in PPG Place, an office and retail complex in downtown Pittsburgh, and is known for its glass facade designed by Postmodern architect Philip Johnson. History 19th century Pittsburgh Plate Glass Company was founded in 1883 by Captain John Baptiste Ford and John Pitcairn, Jr., at Creighton, Pennsylvania. Based in Creighton, Pennsylvania (about 20 miles north of Pittsburgh along the Allegheny River), PPG soon became the United States' first commercially successful producer of high-quality, thick flat glass using the plate process. PPG was also the world's first plate glass plant to power its furnaces with locally produced natural gas, an innov ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eglinton Station Vitrolite
Eglinton can refer to: People * Earl of Eglinton, a title in the Peerage of Scotland *Geoffrey Eglinton (1927–2016), British chemist * Timothy Eglinton, a British biogeoscientist *William Eglinton (1857–1933), a British spiritualist medium and fraud *J.Z. Eglinton, pseudonym of Walter H. Breen Jr. (1928–1993) *John Eglinton, pseudonym of William Kirkpatrick Magee (1868–1961) Places Australia * Eglinton, New South Wales, a suburb of Bathurst *Eglinton, Western Australia, a suburb of Perth Canada Toronto *Eglinton, Ontario, a former village now in Toronto *Eglinton (electoral district), a former federal electoral district *Eglinton (provincial electoral district), a former provincial electoral district *Eglinton Avenue, a main thoroughfare in Toronto *Eglinton Park * Eglinton Theatre *Line 5 Eglinton or Eglinton Crosstown Line, a light rail line under construction **Eglinton Maintenance and Storage Facility, a light-rail facility serving Line 5 Eglinton Canadian Territor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Silvering
Silvering is the chemical process of coating a non-conductive substrate such as glass with a reflective substance, to produce a mirror. While the metal is often silver, the term is used for the application of any reflective metal. Process Most common household mirrors are "back-silvered" or "second-surface", meaning that the light reaches the reflective layer after passing through the glass. A protective layer of paint is usually applied to protect the back side of the reflective surface . This arrangement protects the fragile reflective layer from corrosion, scratches, and other damage. However, the glass layer may absorb some of the light and cause distortions and optical aberrations due to refraction at the front surface, and multiple additional reflections on it, giving rise to "ghost images" (although some optical mirrors such as Mangins, take advantage of it). Therefore, precision optical mirrors normally are "front-silvered" or " first-surface", meaning that the refl ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Agate
Agate () is a common rock formation, consisting of chalcedony and quartz as its primary components, with a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks. The ornamental use of agate was common in Ancient Greece, in assorted jewelry and in the seal stones of Greek warriors, while bead necklaces with pierced and polished agate date back to the 3rd millennium BCE in the Indus Valley civilisation. Etymology The stone was given its name by Theophrastus, a Greek philosopher and naturalist, who discovered the stone along the shore line of the Dirillo River or Achates ( grc, Ἀχάτης) in Sicily, sometime between the 4th and 3rd centuries BCE. Formation and properties Agate minerals have the tendency to form on or within pre-existing rocks, creating difficulties in accurately determining their time of formation. Their host rocks have been dated to have formed as early as the Archean Eon. Agates are most commonly found as nodules wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Translucent
In the field of optics, transparency (also called pellucidity or diaphaneity) is the physical property of allowing light to pass through the material without appreciable scattering of light. On a macroscopic scale (one in which the dimensions are much larger than the wavelengths of the photons in question), the photons can be said to follow Snell's law. Translucency (also called translucence or translucidity) allows light to pass through, but does not necessarily (again, on the macroscopic scale) follow Snell's law; the photons can be scattered at either of the two interfaces, or internally, where there is a change in index of refraction. In other words, a translucent material is made up of components with different indices of refraction. A transparent material is made up of components with a uniform index of refraction. Transparent materials appear clear, with the overall appearance of one color, or any combination leading up to a brilliant spectrum of every color. The opposite ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iron(III) Oxide
Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe2O3. It is one of the three main oxides of iron, the other two being iron(II) oxide (FeO), which is rare; and iron(II,III) oxide (Fe3O4), which also occurs naturally as the mineral magnetite. As the mineral known as hematite, Fe2O3 is the main source of iron for the steel industry. Fe2O3 is readily attacked by acids. Iron(III) oxide is often called rust, and to some extent this label is useful, because rust shares several properties and has a similar composition; however, in chemistry, rust is considered an ill-defined material, described as Hydrous ferric oxide. Structure Fe2O3 can be obtained in various polymorphs. In the main one, α, iron adopts octahedral coordination geometry. That is, each Fe center is bound to six oxygen ligands. In the γ polymorph, some of the Fe sit on tetrahedral sites, with four oxygen ligands. Alpha phase α-Fe2O3 has the rhombohedral, corundum (α-Al2O3) structure and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
