Apr 02, 2021 · 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. Many techniques have been developed to present world maps that address diverse technical and aesthetic goals. Charting a world map requires global knowledge of the earth
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4 days ago · Earth is the third planet from the Sun and the only astronomical object known to harbor life.About 29% of Earth's surface is land consisting of continents and islands.The remaining 71% is covered with water, mostly by oceans, seas, gulfs, and other salt water bodies, but also by lakes, rivers, and other fresh water, which together constitute the hydrosphere.
- Geographic maps
- Orientation of maps
- Scale and accuracy
- Map projection
A map is a symbolic depiction emphasizing relationships between elements of some space, such as objects, regions, or themes. Many maps are static, fixed to paper or some other durable medium, while others are dynamic or interactive. Although most commonly used to depict geography, maps may represent any space, real or fictional, without regard to context or scale, such as in brain mapping, DNA mapping, or computer network topology mapping. The space being mapped may be two dimensional, such as t
Cartography or map-making is the study and practice of crafting representations of the Earth upon a flat surface, and one who makes maps is called a cartographer. Road maps are perhaps the most widely used maps today, and form a subset of navigational maps, which also include aeronautical and nautical charts, railroad network maps, and hiking and bicycling maps. In terms of quantity, the largest number of drawn map sheets is probably made up by local surveys, carried out by municipalities, utili
The orientation of a map is the relationship between the directions on the map and the corresponding compass directions in reality. The word "orient" is derived from Latin oriens, meaning east. In the Middle Ages many maps, including the T and O maps, were drawn with east at the top. The most common cartographic convention, is that north is at the top of a map.
Many maps are drawn to a scale expressed as a ratio, such as 1:10,000, which means that 1 unit of measurement on the map corresponds to 10,000 of that same unit on the ground. The scale statement can be accurate when the region mapped is small enough for the curvature of the Earth to be neglected, such as a city map. Mapping larger regions, where curvature cannot be ignored, requires projections to map from the curved surface of the Earth to the plane. The impossibility of flattening the sphere
Geographic maps use a projection to translate the three-dimensional real surface of the geoid to a two-dimensional picture. Projection always distorts the surface. There are many ways to apportion the distortion, and so there are many map projections. Which projection to use depends on the purpose of the map.
2 days ago · Google Earth is a computer program, formerly known as Keyhole EarthViewer, that renders a 3D representation of Earth based primarily on satellite imagery.The program maps the Earth by superimposing satellite images, aerial photography, and GIS data onto a 3D globe, allowing users to see cities and landscapes from various angles.
4 days ago · Earth also turns around in space, so that different parts face the Sun at different times. Earth goes around the Sun once (one year) for every 365 1 ⁄ 4 times it turns around (one day). Earth is the only planet in the Solar System that has a large amount of liquid water. About 74% of the surface of Earth is covered by liquid or frozen water.
- Earthly, terrestrial
- 147095000 km, (91401000 mi; 0.98327 AU)
- 152100000 km, (94500000 mi; 1.017 AU)
- 149598023 km, (92955902 mi; 1.00000102 AU)
Apr 01, 2021 · Wikipedia:WikiProject Indian maps – India Map Project page. Many maps of India; Image:India-locator-map-blank.svg – India with the states. States on a separate layer and can be removed if necessary. Europe
Apr 01, 2021 · The flat Earth model is an archaic conception of Earth's shape as a plane or disk.Many ancient cultures subscribed to a flat Earth cosmography, including Greece until the classical period (323 BC), the Bronze Age and Iron Age civilizations of the Near East until the Hellenistic period (31 BC), India until the Gupta period (early centuries AD), and China until the 17th century.
2 days ago · as earth-centered, earth-fixed Cartesian coordinates in 3-space; as a set of numbers, letters or symbols forming a geocode . In geodetic coordinates and map coordinates, the coordinate tuple is decomposed such that one of the numbers represents a vertical position and two of the numbers represent a horizontal position .
20 hours ago · The biological and geological future of Earth can be extrapolated based upon the estimated effects of several long-term influences. These include the chemistry at Earth's surface, the rate of cooling of the planet's interior, the gravitational interactions with other objects in the Solar System, and a steady increase in the Sun's luminosity.