scratched glass

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• Glass-ceramic — materials share many properties with both glass and more traditional crystalline ceramics. It is formed as a glass, and then made to crystallize partly by heat treatment. Unlike sintered ceramics, glass ceramics have no pores between crystals.… …   Wikipedia

• glass — [1] A transparent, hard, amorphous, brittle substance which is made by fusing together one or more of the oxides of silicon, boron, or phosphorus, with certain basic oxides (e.g., sodium, magnesium, calcium, potassium), and cooling the product… …   Dictionary of automotive terms

• glass tear — Rupert s drop Ru pert s drop A kind of glass drop with a long tail, made by dropping melted glass into water. It is remarkable for bursting into fragments when the surface is scratched or the tail broken; so called from Prince Rupert, nephew of… …   The Collaborative International Dictionary of English

• Scratched — Scratch Scratch, v. t. [imp. & p. p. {Scratched}; p. pr. & vb. n. {Scratching}.] [OE. cracchen (perhaps influenced by OE. scratten to scratch); cf. OHG. chrazz[=o]n, G. kratzen, OD. kratsen, kretsen, D. krassen, Sw. kratsa to scrape, kratta to… …   The Collaborative International Dictionary of English

• Architectural glass — is glass that is used as a building material. It is most typically used as transparent glazing material in the building envelope, including windows in the external walls. Glass is also used for internal partitions and as an architectural feature …   Wikipedia

• Chemically strengthened glass — is a type of glass that has increased strength as a result of a post production chemical process. When broken, it still shatters in long pointed splinters similar to float glass. For this reason, it is not considered a safety glass and must be… …   Wikipedia

• Acrylic glass — chembox new ImageFile = PMMA repeating unit.svg ImageSize = 100px IUPACName = SystematicName = OtherNames = poly(methyl methacrylate) (PMMA) methyl methacrylate resin Section1 = Chembox Identifiers Abbreviations = CASNo = 9011 14 7 EINECS =… …   Wikipedia

• Mildner glass —       late 18th century glassware decorated by Johann Josef Mildner (1763–1808) in the Zwischengoldgläser (q.v.) technique of bonding gold leaf engravings or etchings between two layers of glass, one of which fits precisely into the other.… …   Universalium

• scratchiti — (skra.CHEE.tee) n. A form of graffiti in marks are etched into windows and other glass surfaces (scratch + graffiti). Also: scratchitti. Example Citation: Some call it scratchiti, a word that lends it an air of near dignity it hardly deserves. It …   New words

• Zwischengoldgläser — ▪ glass       (German: “gold between glasses”), drinking glasses decorated with engraving in gold leaf laminated between two pieces of glass. The term is usually applied to beakers, goblets, and tumblers produced in Bohemia during the late 17th… …   Universalium

• Mohs hardness scale and observations on hardness of some additional materials — ▪ Table Mohs hardness scale and observations on hardness of some additional materials mineral Mohs hardness other materials observations on the minerals talc   1 very easily scratched by the fingernail; has a greasy feel gypsum   2 Mohs hardness… …   Universalium