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  2. Glass - Wikipedia

    en.wikipedia.org/wiki/Glass

    A glass building facade. Glass is an amorphous (non-crystalline) solid. Because it is often transparent and chemically inert, glass has found widespread practical, technological, and decorative use in window panes, tableware, and optics. Some common objects made of glass are named after the material, e.g. "glass", "glasses", "magnifying glass".

  3. 18th century glassmaking in the United States - Wikipedia

    en.wikipedia.org/wiki/18th_century_glassmaking...

    To make glass, the glassmaker starts with the batch, melts it together, forms the glass product, and gradually cools it. The batch is dominated by sand, which contains silica. Smaller quantities of other ingredients, such as soda and limestone, are added to the batch. [2] Additional ingredients may be added to color the glass. For example, an ...

  4. 19th century glassmaking in the United States - Wikipedia

    en.wikipedia.org/wiki/19th_century_glassmaking...

    To make glass, the glassmaker starts with the batch, melts it together, forms the glass product, and gradually cools it. The batch is dominated by sand, which contains silica. Smaller quantities of other ingredients, such as soda and limestone, are added to the batch. [2] Additional ingredients may be added to color the glass. For example, an ...

  5. Glass coloring and color marking - Wikipedia

    en.wikipedia.org/wiki/Glass_coloring_and_color...

    Selenium, like manganese, can be used in small concentrations to decolorize glass, or in higher concentrations to impart a reddish color, caused by selenium nanoparticles dispersed in glass. It is a very important agent to make pink and red glass. When used together with cadmium sulfide, [9] it yields a brilliant red color known as "Selenium Ruby".

  6. Glass production - Wikipedia

    en.wikipedia.org/wiki/Glass_production

    Broadly, modern glass container factories are three-part operations: the "batch house", the "hot end", and the "cold end". The batch house handles the raw materials; the hot end handles the manufacture proper—the forehearth, forming machines, and annealing ovens; and the cold end handles the product-inspection and packaging equipment.

  7. Borosilicate glass - Wikipedia

    en.wikipedia.org/wiki/Borosilicate_glass

    Borosilicate glass is a type of glass with silica and boron trioxide as the main glass-forming constituents. Borosilicate glasses are known for having very low coefficients of thermal expansion (≈3 × 10 −6 K −1 at 20 °C), making them more resistant to thermal shock than any other common glass.

  8. Early glassmaking in the United States - Wikipedia

    en.wikipedia.org/wiki/Early_glassmaking_in_the...

    Glass was not pressed in the United States until the 1820s. [8] Until the 20th century, window glass production involved blowing a cylinder and flattening it. [9] Two major methods to make window glass, the crown method and the cylinder method, were used until the process was changed much later in the 1920s. [10]

  9. 19th Century glassmaking innovations in the United States

    en.wikipedia.org/wiki/19th_Century_glassmaking...

    The ingredients used to make the glass were lower-cost than those used to make lead glass. In addition, the glass hardened faster, meaning the workforce was forced to shape or press it quicker—lowering costs for labor in addition to lower costs for ingredients. [ 68 ]

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