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  2. Spherical coordinate system - Wikipedia

    en.wikipedia.org/wiki/Spherical_coordinate_system

    the azimuthal angle φ, which is the angle of rotation of the radial line around the polar axis. [b] (See graphic regarding the "physics convention".) Once the radius is fixed, the three coordinates (r, θ, φ), known as a 3-tuple, provide a coordinate system on a sphere, typically called the spherical polar coordinates.

  3. General Post Office - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office

    The General Post Office (GPO) [1] was the state postal system and telecommunications carrier of the United Kingdom until 1969. [2] Established in England in the 17th century, the GPO was a state monopoly covering the dispatch of items from a specific sender to a specific receiver (which was to be of great importance when new forms of communication were invented); it was overseen by a ...

  4. Spherical trigonometry - Wikipedia

    en.wikipedia.org/wiki/Spherical_trigonometry

    Case 3: two sides and an opposite angle given (SSA). The sine rule gives C and then we have Case 7. There are either one or two solutions. Case 4: two angles and an included side given (ASA). The four-part cotangent formulae for sets (cBaC) and (BaCb) give c and b, then A follows from the sine rule. Case 5: two angles and an opposite side given ...

  5. GPO - Wikipedia

    en.wikipedia.org/wiki/GPO

    Download QR code; Print/export Download as PDF; Printable version ... move to sidebar hide. GPO may refer to: Government and politics General Post Office, Dublin ...

  6. General Post Office, Melbourne - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office,_Melbourne

    The General Post Office, situated on the corner of Elizabeth and Bourke streets in Melbourne, is the former General Post Office for Victoria, Australia. [1]Still owned by the Federal Government, the building appears on all major heritage lists: the National Trust of Victoria (Australia), the Commonwealth Heritage List, and the state of Victoria where it is noted for its fine and impressive ...

  7. RuneQuest - Wikipedia

    en.wikipedia.org/wiki/RuneQuest

    A second edition, with various minor revisions, was released in 1979. [4] RuneQuest quickly established itself as the second most popular fantasy role-playing game after Dungeons & Dragons . [ 5 ] [ 6 ] In the four years before the second edition was superseded, Chaosium published over twenty supplements to support it.

  8. HP-GL - Wikipedia

    en.wikipedia.org/wiki/HP-GL

    The HP-GL/2 and HP RTL Reference Guide - A handbook for Program Developers - Hewlett-Packard Graphics Language/2 - Hewlett-Packard Raster Transfer Language (draft 2, second ed.). Barcelona, Spain: Addison-Wesley Publishing Company. ISBN 0-201-63325-6. HP Part No. 5961-3526, 5959-9733. Archived from the original on 2017-02-27

  9. General Post Office, Sydney - Wikipedia

    en.wikipedia.org/wiki/General_Post_Office,_Sydney

    The General Post Office (abbreviation GPO, commonly known as the Sydney GPO) is a heritage-listed landmark building located in Martin Place, Sydney, New South Wales, Australia. The original building was constructed in two stages beginning in 1866 and was designed under the guidance of Colonial Architect James Barnet .