Glass

:For eyeglasses, see glasses. For the drinking vessel, see glass (drinkware).

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The materials definition of a glass is a uniform amorphous solid material, usually produced when a suitably viscous molten material cools very rapidly, thereby not giving enough time for a regular crystal lattice to form. A simple example is when table sugar is melted and cooled rapidly by dumping the liquid sugar onto a cold surface. The resulting solid is amorphous, not crystaline like the sugar was originally, which can be seen in its conchoidal fracture.

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The word glass comes from Latin glacies (ice) and corresponds to German Glas, M.E. glas, A.S. glaes. Germanic tribes used the word glaes to describe amber, recorded by Roman historians as glaesum. Anglo-Saxons used the word glaer for amber.

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The remainder of this article will be concerned with a specific type of glass—the silica-based glasses in common use as a building, container or decorative material.

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Glass (drinkware): REDIRECT List of glassware...

Amorphous solid: An amorphous solid is a solid in which there is no long-range order of the positions of the atoms. (Solids in which there is long-range atomic order are called crystalline solids.) Most classes of solid materials can be found or prepared in an amorphous form. For instance, common window glass is an...

Crystal: :This article is about the form of solid matter. For other uses of this word, see Crystal (disambiguation)....

Glass related Images and Photos (experimental)

Glass	Glass Fish	Glass Cubed	Glass Heels
Glass Chess Set	Glass Key 1942	Glass Key 1942	Glass Hulk Tumbler
Glass Thor Tumbler	Glass Bottom Boat, The (DVD)	The Glass Vase	Glass Iron Man Tumbler