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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 7th-century scholar Isidore of Seville (c. 560–636) in his De Natura Rerum and later his Etymologiae (c. 625) [1]
T-O maps were designed to schematically illustrate the three land masses of the world as it was known to the Romans and their medieval European heirs. The larger mappae mundi have the space and detail to illustrate further concepts, such as the cardinal directions, distant lands, Bible stories, history, mythology, flora, fauna and exotic races.
The Universal Transverse Mercator (UTM) is a map projection system for assigning coordinates to locations on the surface of the Earth.Like the traditional method of latitude and longitude, it is a horizontal position representation, which means it ignores altitude and treats the earth surface as a perfect ellipsoid.
Juan de la Cosa's map is a manuscript nautical chart of the world drawn on two joined sheets of parchment sewn onto a canvas backing. It measures 96 cm high by 183 cm wide. A legend written in Spanish at the western edge of the map translates as "Juan de la Cosa made this (map) in the port of Santa Maria in the year 1500".
Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude for the location. User interface in English language. Mapcoordinates: Map to coordinates: Move a marker on a Google Maps map (map or satellite view) and get Latitude, Longitude and Elevation for the location. User interface in German language. NASA World Wind ...
How satellite internet works. Satellite Internet generally relies on three primary components: a satellite – historically in geostationary orbit (or GEO) but now increasingly in Low Earth orbit (LEO) or Medium Earth orbit MEO) [24] – a number of ground stations known as gateways that relay Internet data to and from the satellite via radio waves (), and further ground stations to serve each ...
The two grids covering the Arctic and Antarctic. The universal polar stereographic (UPS) coordinate system is used in conjunction with the universal transverse Mercator (UTM) coordinate system to locate positions on the surface of the Earth.
The Carna Botnet was a botnet of 420,000 devices created by hackers to measure the extent of the Internet in what the creators called the "Internet Census of 2012". [ 24 ] [ 25 ] World map of 24-hour relative average utilization of IPv4 addresses observed using ICMP ping requests as part of the Internet Census of 2012 (Carna Botnet), June ...