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The most familiar type of glass, used for centuries in windows and drinking vessels , is soda-lime glass , made of about 75% silica (SiO 2 ) plus Na 2 O , CaO , and several minor additives. Often, the term glass is used in a restricted sense to refer to this specific use. In science, however

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The glass harmonica , also known as the glass armonica , bowl organ , hydrocrystalophone , or simply the armonica (derived from "harmonia," the Greek word for harmony), is a type of musical instrument that uses a series of glass bowls or goblets graduated in size to produce musical tones

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The term stained glass can refer to coloured glass as a material or to works produced from it. Throughout its thousand-year history, the term has been applied almost exclusively to the windows of churches and other significant buildings. Although traditionally made in flat panels and used

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A pint glass is a drinking vessel made to hold either a British ("imperial") pint of 20 imperial fluid ounces (570  mL ) or an American pint of 16  U.S. fluid ounces (470  mL ). These glasses are used predominantly to serve beer . Contents 1 Current shapes 2 Older styles

Magnifying glass print that page


A magnifying glass (called a hand lens in laboratory contexts) is a convex lens which is used to produce a magnified image of an object. The lens is usually mounted in a frame with a handle (see image). The distance between the Magnifying glasses and the object must be shorter than the

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Glass makes up a large component of household and industrial waste due to its weight and density. The glass component in municipal waste is usually made up of bottles , broken glassware , light bulbs and other items. Adding to this waste is the fact that many manual methods of creating glass

Borosilicate glass print that page


Borosilicate glass was first developed by German glassmaker Otto Schott in the late 19th century [ 1 ] and sold under the brand name "Duran" in 1893. After Corning Glass Works introduced Pyrex in 1915, the name became a synonym for borosilicate glass in the English-speaking world. The

Uranium glass print that page


Uranium glass was once made into tableware and household items, but fell out of widespread use when the availability of uranium to most industries was sharply curtailed during the Cold War . Most such objects are now considered antiques or retro-era collectibles, although there has been a minor

Glass cockpit print that page


A glass cockpit is an aircraft cockpit that features electronic (digital) instrument displays , typically large LCD screens, as opposed to the traditional style of analog dials and gauges. Where a traditional cockpit relies on numerous mechanical gauges to display information, a glass

Spin glass print that page

A spin glass is a magnet with frustrated interactions , augmented by stochastic disorder, where usually ferromagnetic and antiferromagnetic bonds are randomly distributed. Its magnetic ordering resembles the positional ordering of a conventional, chemical glass . Spin glasses display

wikipedia.org | 2011/9/26 12:47:29