Planisphere

A planisphere is a plane representation of the whole of the Surface of a Sphère in the form of two hemispheres, in particular in Cartographie (geographical). The term of Mappemonde is, in its strict direction, equivalent, but is often used wrongfully for Globe (or planet gear).

The planispheres do not represent only one physical surface but are often in the center of geostrategic stakes . They represent the vision of the author. They are thus not that a technique but also a policy and can be means of Propagande. To finish, the planispheres are also a representation which can belong to the field of the imaginary that is literature or of another Article.

History

The cartography experienced an extraordinary development for the period of the Grandes discoveries, as of the 15th century. The maps of the world were necessary to the Exploration S which carried out the Portuguese around Africa (as of 1415, first North Africa establishment), then Castilians. The monk Camaldule FRA Mauro carried out a map of the world representing the Old world in 1459, which he addressed to Henri the Navigator, at the request of the king Alphonse V of Portugal.

Anecdote

See also: Contenu=Histoire of [[egg of Colomb]], [[egg of Christophe Colomb]]

Projections

the Projection of Mercator: most known of the techniques
the Projection of Peters: an alternative of the South
the Projection of Fuller: quasi conservation of the surface and the shape of the territories.
the Projection of Postel: the projection of the poles.
the orthographical Projection: a projection of intuitive design preserving certain distances.
the stereographic Projection: most famous and oldest projection conforms.

See too

Internal bonds

Atlas: collection of charts

External bonds

Mappemonde.net: chart of the world, of France,…

planisphere to download

Planisphere, Seek-stars, directional Sky chart, Drehbare Himmelskarte, 2007 - the position of stars at every moment, 2nd edition published by www.oculum.de, the few indications mentioned on the chart are in German, but can be easily interpreted.

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