Search results
Results From The WOW.Com Content Network
A classic "T-O" map with Jerusalem at center, east toward the top, Europe at bottom left and Africa on the right. A T and O map or O–T or T–O map ( orbis terrarum, orb or circle of the lands; with the letter T inside an O), also known as an Isidoran map, is a type of early world map that represents world geography as first described by the ...
World map. A world map is a map of most or all of the surface of Earth. World maps, because of their scale, must deal with the problem of projection. Maps rendered in two dimensions by necessity distort the display of the three-dimensional surface of the Earth. While this is true of any map, these distortions reach extremes in a world map.
The Blue Marble photograph in its original orientation [1] South-up map orientation is the orientation of a map with south up, at the top of the map, amounting to a 180-degree rotation of the map from the standard convention of north-up. Maps in this orientation are sometimes called upside down maps or reversed maps. [citation needed]
The Ptolemy world map is a map of the world known to Greco-Roman societies in the 2nd century. It is based on the description contained in Ptolemy 's book Geography, written c. 150. Based on an inscription in several of the earliest surviving manuscripts, it is traditionally credited to Agathodaemon of Alexandria .
The Genoese map of 1457 is a world map that relied extensively on the account of the traveller to Asia Niccolo da Conti, rather than the usual source of Marco Polo. [37] The author is unknown, but is a more modern development than the Fra Mauro world map , less intricate and complete, with fairly good proportions given to each of the continents.
Geographical centre. In geography, the centroid of the two-dimensional shape of a region of the Earth's surface (projected radially to sea level or onto a geoid surface) is known as its geographic centre or geographical centre or (less commonly) gravitational centre. Informally, determining the centroid is often described as finding the point ...
Kunyu Wanguo Quantu, printed by Matteo Ricci, Zhong Wentao and Li Zhizao, upon request of Wanli Emperor in Beijing, 1602. The 1602 Ricci map is a very large, 5 ft (1.52 m) high and 12 ft (3.66 m) wide, woodcut using a pseudocylindrical map projection showing China at the center of the known world. [ 2] It is the first map in Chinese to show the ...
The geographical centre of Earth is the geometric centre of all land surfaces on Earth. Geometrically defined it is the centroid of all land surfaces within the two dimensions of the Geoid surface which approximates the Earth's outer shape. The term centre of minimum distance[ 1] specifies the concept more precisely as the domain is the sphere ...