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What (who) is M49 telescope - definition
M49 telescope
TELESCOPE USED BY THE UNITED STATES MILITARY
The M49 observation telescope is a 20-power daytime telescope currently used by the US military. It is used for making ground observations of a target area and effectiveness of artillery fire.
M49 motorway
![Looking north at Dyer's Common towards the [[Second Severn Crossing]]](https://commons.wikimedia.org/wiki/Special:FilePath/M49 Dyer's Common.jpg?width=200 "Looking north at Dyer's Common towards the [[Second Severn Crossing]]")
MOTORWAY NEAR BRISTOL, ENGLAND
M49 motorway (Great Britain)
The M49 motorway is just long and forms a link between the M5 motorway west of Bristol at junction 18A and the M4 motorway at junction 22 before the Second Severn Crossing (now officially renamed the Prince of Wales Bridge). It was constructed at the same time as the bridge in 1996.
Refractor
.jpg?width=200 "The Yerkes Great refractor mounted at the 1893 World's Fair in Chicago; the tallest, longest, and biggest aperture refractor up to that time.")
![Vienna University Observatory]]](https://commons.wikimedia.org/wiki/Special:FilePath/Refraktor Wien Kerschbaum 1.jpg?width=200 "Vienna University Observatory]]")
![in}} refractor, at [[Yerkes Observatory]], the largest achromatic refractor ever put into astronomical use (photo taken on 6 May 1921, as Einstein was visiting)](https://commons.wikimedia.org/wiki/Special:FilePath/Yerkes Observatory Astro4p7.jpg?width=200 "in}} refractor, at [[Yerkes Observatory]], the largest achromatic refractor ever put into astronomical use (photo taken on 6 May 1921, as Einstein was visiting)")
TYPE OF OPTICAL TELESCOPE
Refractor; Refractor telescope; Refractive telescope; Galilean Telescope; Refracting Telescope; Galilean telescope; Keplerian telescope; Keplerian Telescope; Refractor Telescope; Kepler refractor; Galileo Telescope; Galileo's telescope; Refractory telescope
·noun Anything that refracts.
II. Refractor ·noun A refracting telescope, in which the image to be viewed is formed by the refraction of light in passing through a convex lens.
