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i really need your help...if you can answer me you will make me the happiest grl ....i'm waiting :-w...my teacher is gonna kill me if i don't make this eesay :(((...pls heeelp!!!!

2007-01-21 07:55:45 · 2 answers · asked by plz_help 1 in Education & Reference Homework Help

2 answers

I did a web search and only provide a small piece of the information obtained at www.megaessays.com. You can source additional information on this site as well as by going to www.ask.com and entering "essay about glass products" in the search field. Good luck!
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Glass
Glass is a material that is used in our homes, workplaces, and forms of transportation. It is most commonly seen in the form of windows, which protects us against the elements without obstructing our vision. In our vehicles, we use it to see places that we would normally have to turn around to see. In eyeglasses and contact lenses it allows us to see better. It conducts heat easily, but does not conduct electricity at all. It is also used for decoration such as vases, clocks, mirrors, and even stained glass.
Glass is commonly referred to as a highly viscous liquid. It is not a solid because its molecules aren’t in a crystalline pattern. Instead, the particles are arranged as if it were a liquid, but frozen in place. It can be transparent, translucent, or opaque. It is non-porous, non-absorptive, and can be used with the common elements and many harsh chemicals and liquids. It is one of the best electrical insulation materials, and because it is made of silica or contains it, it is considered a ceramic. It is also considered a thermoplastic in some cases because it can melt when heated and reform when cool

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The materials used to help silica melt are known as fluxes. The same ingredients in different amounts also make up manufactured glass. Peachtree makes glass for houses and businesses across the U. Over the next two centuries many techniques were developed to make glass more transparent and durable. The first useful glass objects are from Egypt’s 18th dynasty in 1500 B. Ornamental glass dating from 2500 B. Another local company that produces glass is Winstrom in Park Forest, IL. When the Roman Empire fell, glass making almost disappeared until it picked up again in Venice in the 13th and 14th centuries.


Glass is an open chain of silicon atoms with atoms of various oxides occupying the spaces between.


Today glass is an inexpensive all purpose material. About fifty other chemical elements are used in modern glassmaking to give it desired properties. , glass cups replaced gold and silver cups as a status of the Roman rich.

www.megaessays.com/
viewpaper/87691.html

2007-01-21 08:02:20 · answer #1 · answered by D N 6 · 0 0

http://kellyriddle.tripod.com/book.htm
history of glass
production etc

http://www.askforkids.com/fr?u=http%3A%2F%2Fwww.encyclopedia.netnz.com%2F&bu=http%3A%2F%2Fwww.askforkids.com%2Fweb%3Fq%3Dglass+blowing%26dm%3Dlang%26page%3D1&q=glass+blowing&o=0&l=dir&s=k&dm=lang&qt=0

for the kinds of products made

2007-01-21 16:09:35 · answer #2 · answered by shannara 4 · 0 0

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