United Kingdom Ordnance Survey Zero Meridian
 | This article needs additional citations for verification. (June 2021) |
The United Kingdom Ordnance Survey Zero Meridian is the
George Airy's instrument being placed in a room next to that housing James Bradley's instrument) superseded it fifty years later in 1851, the Ordnance Survey simply continued to use Bradley's.[1]
References
- ^ Charles Jennings; "Greenwich: The Place Where Days Begin and End", Little, Brown; 1999; p. 181