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2. Mirror - Wikipedia

   en.wikipedia.org/wiki/Mirror

   Natural mirrors have existed since prehistoric times, such as the surface of water, but people have been manufacturing mirrors out of a variety of materials for thousands of years, like stone, metals, and glass. In modern mirrors, metals like silver or aluminium are often used due to their high reflectivity, applied as a thin coating on glass ...

3. Silvering - Wikipedia

   en.wikipedia.org/wiki/Silvering

   The reflective layer on a second surface mirror such as a household mirror is often actual silver. A modern "wet" process for silver coating treats the glass with tin(II) chloride to improve the bonding between silver and glass. An activator is applied after the silver has been deposited to harden the tin and silver coatings.

4. Speculum metal - Wikipedia

   en.wikipedia.org/wiki/Speculum_metal

   The era of the large glass-mirror reflector had begun, with telescopes such as Andrew Ainslie Common's 1879 36-inch (91 cm) and 1887 60-inch (152 cm) reflectors built at Ealing, and the first of the "modern" large glass-mirror research reflectors, 60-inch (150 cm) Mount Wilson Observatory Hale Telescope of 1908, the 100-inch (2.5 m) Mount ...

5. History of glass - Wikipedia

   en.wikipedia.org/wiki/History_of_glass

   This method gave the sheet uniform thickness and very flat surfaces. Modern windows are made from float glass. Most float glass is soda–lime glass, but relatively minor quantities of specialty borosilicate [59] and flat panel display glass are also produced using the float glass process.

6. Architectural glass - Wikipedia

   en.wikipedia.org/wiki/Architectural_glass

   Glass casting is the process in which glass objects are cast by directing molten glass into a mould where it solidifies. The technique has been used since the Egyptian period. . Modern cast glass is formed by a variety of processes such as kiln casting, or casting into sand, graphite or metal moul

7. Dichroic glass - Wikipedia

   en.wikipedia.org/wiki/Dichroic_glass

   A pendant made from modern dichroic glass. Dichroic glass is glass which can display multiple different colors depending on lighting conditions.. One dichroic material is a modern composite non-translucent glass that is produced by stacking layers of metal oxides which give the glass shifting colors depending on the angle of view, causing an array of colors to be displayed as an example of ...