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A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe.
Medieval artistic representation of a spherical Earth – with compartments representing earth, air, and water (c. 1400) The Erdapfel, the oldest surviving terrestrial globe (1492/1493) The spherical shape of the Earth was known and measured by astronomers, mathematicians, and navigators from a variety of literate ancient cultures, including ...
The difference between a sphere and a reference ellipsoid for Earth is small, only about one part in 300. Historically, flattening was computed from grade measurements. Nowadays, geodetic networks and satellite geodesy are used. In practice, many reference ellipsoids have been developed over the centuries from different surveys.
Behaim-Globe, Germanisches Nationalmuseum, Nuremberg, height 133 cm (52 in) Behaim’s Erdapfel Modern recreation of the gores of the Erdapfel Oceanic area described on the Martin Behaim globe. The Erdapfel ( German for 'earth apple'; pronounced [ˈeːɐ̯tˌʔapfl̩] ⓘ ) is a terrestrial globe 51 cm (20 in) in diameter, produced by Martin ...
Early world maps cover depictions of the world from the Iron Age to the Age of Discovery and the emergence of modern geography during the early modern period.Old maps provide information about places that were known in past times, as well as the philosophical and cultural basis of the map, which were often much different from modern cartography.
The map carved on the globe is an extremely close, [1] if not identical, [2] match to the Hunt–Lenox Globe, a copper globe reliably dated to about 1510. The owner [ 2 ] of the Ostrich Egg Globe, Stefaan Missinne, claims that it was made in the early 16th century and is therefore the first globe ever to depict the New World .