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A concave mirror, or converging mirror, has a reflecting surface that is recessed inward (away from the incident light). Concave mirrors reflect light inward to one focal point. They are used to focus light. Unlike convex mirrors, concave mirrors show different image types depending on the distance between the object and the mirror.
A special 240 in (6.1 m) 25,000 lb (11 t) mirror cell jig was constructed which could employ five different motions when the mirror was ground and polished. [20] Over 13 years almost 10,000 lb (4.5 t) of glass was ground and polished away, reducing the weight of the mirror to 14.5 short tons (13.2 t).
The largest optical telescope in the world as of 2009 to use a non-segmented single-mirror as its primary mirror is the 8.2 m (27 ft) Subaru telescope of the National Astronomical Observatory of Japan, located in Mauna Kea Observatory on Hawaii since 1997; [3] [better source needed] however, this is not the largest diameter single mirror in a telescope, the U.S./German/Italian Large Binocular ...
Mirrors 2 is a 2010 American supernatural horror film. It is a stand-alone sequel to the 2008 film Mirrors , not featuring any of the cast and crew from the original film. Released by 20th Century Fox in direct-to-video format, the film is written by Matt Venne and is directed by Víctor Garcia .
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