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2. 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 ...

3. Pier glass - Wikipedia

   en.wikipedia.org/wiki/Pier_glass

   A trumeau mirror is a type of wall mirror originally manufactured in France in the later 18th century. It takes its name from the French word trumeau, which designates the space between windows. Such a mirror, usually rectangular, could also hang above an overmantel. A decorative carved or painted scene was the prominent characteristic, and ...

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   Discover the latest breaking news in the U.S. and around the world — politics, weather, entertainment, lifestyle, finance, sports and much more.

5. Mirror - Wikipedia

   en.wikipedia.org/wiki/Mirror

   A mirror reflecting the image of a vase A first-surface mirror coated with aluminium and enhanced with dielectric coatings. The angle of the incident light (represented by both the light in the mirror and the shadow behind it) exactly matches the angle of reflection (the reflected light shining on the table). 4.5-metre (15 ft)-tall acoustic mirror near Kilnsea Grange, East Yorkshire, UK, from ...

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   AOL latest headlines, entertainment, sports, articles for business, health and world news.

7. Mirror mount - Wikipedia

   en.wikipedia.org/wiki/Mirror_mount

   The most common type of mirror mount is the kinematic mount. [3] This type of mount is designed according to the principles of kinematic determinacy. Typically, the movable frame that holds the mirror pivots on a ball bearing which is set into a hole in the fixed frame. Ideally, this hole should be trihedral (pyramid-shaped).