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- Glass abstract "Glass is an amorphous (non-crystalline) solid material that exhibits a glass transition, which is the reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle state into a molten or rubber-like state. Glasses are typically brittle and can be optically transparent. The most familiar type of glass is soda-lime glass, which is composed of about 75% silicon dioxide (SiO2), sodium oxide (Na2O) from soda ash, lime (CaO), and several minor additives. The term glass is often used to refer only to this specific use.Silicate glass generally has the property of being transparent. Because of this, it has a great many applications. One of its primary uses is as a building material, traditionally as small panes set into window openings in walls, but in the 20th-century often as the major cladding material of many large buildings. Because glass can be formed or moulded into any shape, and also because it is a sterile product, it has been traditionally used for vessels: bowls, vases, bottles, jars and glasses. In its most solid forms it has also been used for paperweights, marbles, and beads. Glass is both reflective and refractive of light, and these qualities can be enhanced by cutting and polishing to make optical lenses, prisms and fine glassware. Glass can be coloured by adding metallic salts, and can also be painted. These qualities have led to the extensive use of glass in the manufacturing of art objects and in particular, stained glass windows. Although brittle, glass is extremely durable, and many examples of glass fragments exist from early glass-making cultures.In science, the term glass is defined in a broader sense, encompassing every solid that possesses a non-crystalline (i.e. amorphous) structure and exhibits a glass transition when heated towards the liquid state. These sorts of glasses can be made of quite different kinds of materials: metallic alloys, ionic melts, aqueous solutions, molecular liquids, and polymers. For many applications (bottles, eyewear) polymer glasses (acrylic glass, polycarbonate, polyethylene terephthalate) are a lighter alternative to traditional silica glasses.".
- Glass thumbnail Glass-Ball.jpg?width=300.
- Glass wikiPageExternalLink books?id=pCEDAAAAMBAJ&pg=RA1-PA61.
- Glass wikiPageExternalLink glass_encyclopedia_home.htm.
- Glass wikiPageExternalLink vemak01e.shtml.
- Glass wikiPageExternalLink all-about-glass.
- Glass wikiPageExternalLink glass-dictionary.
- Glass wikiPageExternalLink Manufacturing-Materials-Robotics-Robot-speeds-up-glass-development.
- Glass wikiPageID "12581".
- Glass wikiPageRevisionID "605934565".
- Glass hasPhotoCollection Glass.
- Glass subject Category:Dielectrics.
- Glass subject Category:Glass.
- Glass subject Category:Packaging_materials.
- Glass subject Category:Sculpture_materials.
- Glass comment "Glass is an amorphous (non-crystalline) solid material that exhibits a glass transition, which is the reversible transition in amorphous materials (or in amorphous regions within semicrystalline materials) from a hard and relatively brittle state into a molten or rubber-like state. Glasses are typically brittle and can be optically transparent.".
- Glass label "Glas".
- Glass label "Glas".
- Glass label "Glass".
- Glass label "Szkło".
- Glass label "Verre".
- Glass label "Vetro".
- Glass label "Vidrio".
- Glass label "Vidro".
- Glass label "Стекло".
- Glass label "زجاج".
- Glass label "ガラス".
- Glass label "玻璃".
- Glass sameAs Sklo.
- Glass sameAs Glas.
- Glass sameAs Γυαλί.
- Glass sameAs Vidrio.
- Glass sameAs Beira.
- Glass sameAs Verre.
- Glass sameAs Kaca.
- Glass sameAs Vetro.
- Glass sameAs ガラス.
- Glass sameAs 유리.
- Glass sameAs Glas.
- Glass sameAs Szkło.
- Glass sameAs Vidro.
- Glass sameAs m.039jq.
- Glass sameAs Q11469.
- Glass sameAs Q11469.
- Glass wasDerivedFrom Glass?oldid=605934565.
- Glass depiction Glass-Ball.jpg.
- Glass isPrimaryTopicOf Glass.
