A vitreous plane upon which to display a fleeting show for man's disillusion given. The King of Manchuria had a magic looking-glass, whereon whoso looked saw, not his own image, but only that of the king. A certain courtier who had long enjoyed the king's favor and was thereby enriched beyond any other subject of the realm, said to the king: "Give me, I pray, thy wonderful mirror, so that when absent out of thine august presence I may yet do homage before thy visible shadow, prostrating myself night and morning in the glory of thy benign countenance, as which nothing has so divine splendor, O Noonday Sun of the Universe!" Please with the speech, the king commanded that the mirror be conveyed to the courtier's palace; but after, having gone thither without apprisal, he found it in an apartment where was naught but idle lumber. And the mirror was dimmed with dust and overlaced with cobwebs. This so angered him that he fisted it hard, shattering the glass, and was sorely hurt. Enraged all the more by this mischance, he commanded that the ungrateful courtier be thrown into prison, and that the glass be repaired and taken back to his own palace; and this was done. But when the king looked again on the mirror he saw not his image as before, but only the figure of a crowned ass, having a bloody bandage on one of its hinder hooves -- as the artificers and all who had looked upon it had before discerned but feared to report. Taught wisdom and charity, the king restored his courtier to liberty, had the mirror set into the back of the throne and reigned many years with justice and humility; and one day when he fell asleep in death while on the throne, the whole court saw in the mirror the luminous figure of an angel, which remains to this day.
A hard, brittle, translucent, and commonly transparent substance, white or colored, having a conchoidal fracture, and made by fusing together sand or silica with lime, potash, soda, or lead oxide. It is used for window panes and mirrors, for articles of table and culinary use, for lenses, and various articles of ornament.
Any substance having a peculiar glassy appearance, and a conchoidal fracture, and usually produced by fusion.
To reflect, as in a mirror; to mirror; -- used reflexively.
An inorganic product of fusion which has cooled to a rigid condition without crystallizing.
1. A term used for fiberglass-reinforced plastic. 2. A hard, brittle, transparent substance composed of silicates mixed with potash or suds and lime; used for windows in a vehicle.
A product of quartz sand, soda or potash, and lime. The silica is the main component. Soda or potash, alkalies, limit the melting point of the silica. Lime adds atrength to glass as it cools, preventing brittleness. The ingredients are melted at about 1,200 C.,at which time the atoms of the different components become fluid and distribute themselves randomly, proper cooling freezes that atoms in their random arrangment.
a deposited film of silicon dioxide with additives to adjust coefficient of thermal expansion, color, conductivity, and melting point, generally doped with boron or phosphorus or both.
a uniform amorphous solid material, usually produced when a suitably viscous molten material cools very rapidly, thereby not giving enough time for a crystallization. Common glass is mostly amorphous silicon dioxide (SiO2), which is the same chemical compound found in quartz, or in its polycrystalline form, sand; in its pure form, glass is a transparent, relatively strong, hard-wearing, brittle, essentially inert, and biologically inactive material which can be formed with very smooth and impervious surfaces.
Hard, transparent or translucent substance made from the fusion of silica, such as sand or flint, and an alkali, such as potash or soda. When heated to about 1100°C (2000°F) the ingredients fuse together and become molten. In this state the metal, as it is technically called, can be shaped by blowing, casting, moulding or pressing. Glass can be coloured by adding metallic oxides to the frit.
A hard, brittle substance, usually see-through, which is made by melting together sand, limestone and soda and then cooling quickly.
An amorphous (without crystal structure) igneous rock that forms from very rapid cooling of magma. The rapid cooling does not provide enough time for crystal growth.
A rock formed when magma is too rapidly cooled (quenched) to allow crystal growth.
A material made by melting silica.
A fusion of sand and wood ash. Coloured with the addition of metal oxides. Used for the production of beads, and enamels for decoration.
Glass is a hard material with non-crystalline, random structure like a liquid. It is commonly made by combining materials such as silica, potash, and lead oxide at a high temperature in order to allow the materials to melt and fuse together. When cooled rapidly, the substance becomes rigid . Glass is often classified as a supercooled liquid rather than a regular solid.
1. A state of matter in which a substance displays many properties of a solid but lacks crystal structure. 2. An amorphous igneous rock formed from a rapidly cooling magma.
A general term applied to a wide variety of chemical formulations. Glasses are amorphous solids.
A rock formed when magma or molten rock is cooled too rapidly to allow crystal growth.
A hard, brittle substance, usually transparent, made by fusing silicates with soda, lime, etc. Glass, an interesting substance, in its solid state, is not crystaline, and is considered to be a super-cooled liquid.
A product made by melting silica sand, soda ash and limestone; also made from cullet.
a brittle transparent solid with irregular atomic structure
a mirror; usually a ladies' dressing mirror
a material which has been cooled so far below the normal melting point that it acts like a solid even though it has not undergone a normal sharp freezing process
an amorphous material that does not flow
An amorphous solid showing characteristic specific volume behavior over a certain temperature range.
Hard, transparent, translucent, or shiny substance, made by melting a mixture of sand, soda and lime at a high temperature, followed by cooling.
When liquid magma (lava) cools rapidly, crystals do not have tie to develop and it forms a "glass". This commonly occurs when hot magma is "chilled" as it mixed with air or water.
An amorphous, artificial, non-crystallian substance made by fusing some form of silica and alkali and sometimes another base such as lime.
A hard, brittle, amorphous substance produced by fusion and usually consisting of silica or silicates, soda and lime. It may be transparent, translucent or opaque.
Any of a large class of materials with varying optical and mechanical properties that is generally hard, brittle and translucent or transparent and considered to be a super cooled liquid, as opposed to a solid. Glass fibers, when mixed with various resins, are the main ingredients in a fiberglass product.
A hard, brittle substance, usually transparent, made by fusing silicates under high temperatures with soda, lime, etc.
A homogeneous material with a random, liquidlike (non-crystalline) molecular structure. The manufacturing process requires that the raw materials be heated to a temperature sufficient to produce a completely fused melt, which, when cooled rapidly, becomes rigid without crystallizing.
Natural glass (obsidian) that forms when molten lava cools too rapidly to permit crystal growth.
When liquid magma is cooled very quickly, crystals do not have time to develop and it forms glass. Glass commonly forms when hot magma is ‘chilled' as it mixes with air or water.
An inorganic, amorphous substance that is in a unique physical state. It cools to a rigid state, however, without crystallization. A variety of constituents may be used to create it. The jeweler usually encounters glasses that are mixtures of silica fused with a variety of other substances that impart various desirable qualities such as a low melting point, brilliancy and opacity. Glass is available in many, if not all, colors of the rainbow.
A transparent, brittle substance formed by fusing sand with soda or potash or both; it often has lime, alumina or lead oxide.
A base silica mixture. Color is induced through the addition of metal oxides or other artificial agents to the silica mixture under high heat.
Types of glass include: optical glass, sealing glasses, glass ceramics, borosilicate glasses, soda-like glasses, and lead glasses.
A brittle, hard and non-crystalline substance. It is made by fusing silica and an alkali such as potash or soda.
In fiber-optic communication, any of a number of noncrystalline, amorphous inorganic substances, formed, by heating, from metallic or semiconductor oxides or halides, and used as the material for fibers. Learn more about Glass...
Any of a large class of materials that solidify from the molten state without crystallization, are generally transparent or translucent, and are regarded physically as super-cooled liquids rather than true solids
A super-cooled liquid with no crystalline structure and varying composition, primarily silica sand with soda or potash and lime, which is added to facilitate a lower melting temperature. The color in glass is created with metallic oxides that are dissolved into the molten glass.
A non-crystaline rock that results from very rapid cooling of magma.
An inorganic transparent material composed of sand (silica), soda (sodium bicarbonate), and lime (calcium carbonate) with small quantities of alumina, boric or magnesia oxides. Available Styles: Clear, Bronze, Grey and Tinted.
Most commercial glass is made from a molten mixture of soda ash, sand, and lime. An excellent material for re-using and recycling. The recycling process can be repeated endlessly without any loss of quality.
Any substance having a non-ordered, non-crystalline molecular structure when cooled to a point below transformation temperature (Tg). Most common glasses are silica-based and melted with soda, lime and sometimes other components (boron, alumina and potassium). Most glasses are also hard, shiny and transparent or translucent.
Thin plate of glass or transparent synthetic material, for protecting the dials of watches, clocks, etc.
hard, brittle, generally transparent or translucent material typically formed from the rapid cooling of liquefied minerals. Most commercial glass is made from a molten mixture of soda ash, sand, and lime.
A hard, brittle, translucent or transparent, substance which is made by fusing silicates with soda or potash, lime and other metallic oxides; it is then cooled rapidly to prevent crystallization.