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The WGS 84 datum surface is an oblate spheroid with equatorial radius a = 6 378 137 m at the equator and flattening f = 1 ⁄ 298.257 223 563. The refined value of the WGS 84 gravitational constant (mass of Earth's atmosphere included) is GM = 3.986 004 418 × 10 14 m 3 /s 2. The angular velocity of the Earth is defined to be ω = 72.921 15 × ...
The map is very large – the full frame measures 2.4 by 2.4 metres (8 by 8 ft). This makes Fra Mauro's mappa mundi the world's largest extant map from early modern Europe. The map is drawn on high-quality vellum and is set in a gilded wooden frame. The large drawings are highly detailed and use a range of expensive colors; blue, red, turquoise ...
A geographic coordinate system (GCS) is a spherical or geodetic coordinate system for measuring and communicating positions directly on Earth as latitude and longitude. [1] It is the simplest, oldest and most widely used type of the various spatial reference systems that are in use, and forms the basis for most others.
سبع دول، محيط، وأكثر من ألف ميل بينهم وبين أحلامهم لمستقبل أفضل.
A spatial reference system (SRS) or coordinate reference system (CRS) is a framework used to precisely measure locations on the surface of Earth as coordinates.It is thus the application of the abstract mathematics of coordinate systems and analytic geometry to geographic space.
By using narrow zones of 6° of longitude (up to 668 km) in width, and reducing the scale factor along the central meridian to 0.9996 (a reduction of 1:2500), the amount of distortion is held below 1 part in 1,000 inside each zone. Distortion of scale increases to 1.0010 at the zone boundaries along the equator.
Zone 2 uses two 2-digit codes (20, 27) and eight sets of 3-digit codes (21x–26x, 28x, 29x), mostly to serve Africa, but also Aruba, Faroe Islands, Greenland and British Indian Ocean Territory. Zones 3 and 4 use sixteen 2-digit codes (30–34, 36, 39–41, 43–49) and four sets of 3-digit codes (35x, 37x, 38x, 42x) to serve Europe .
Donald Trump was sentenced without penalty in the New York hush money case Friday after a symbolic – and historic and unprecedented – hearing following the first felony conviction of a former ...