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About 15% of the earth's land has an antipode on land. [3] Rough calculation shows that, of the 29% of the earth that is covered by land, if 15% of that has antipodes on land, then about 4% (0.15 × 29% = 4.35%) of the earth's surface has antipodes that are both land surfaces. Spilhaus estimates this at about 3%. [4]
If the azimuthal equidistant projection map is centered about a point whose antipodal point lies on land and the map is extended to the maximum distance of 20,000 km (12,427 mi) the antipode point smears into a large circle. This is shown in the example of two maps centered about Los Angeles, and Taipei.
Lines of constant bearing (rhumb lines) are straight, aiding navigation. Areas inflate with latitude, becoming so extreme that the map cannot show the poles. 2005 Web Mercator: Cylindrical Compromise Google: Variant of Mercator that ignores Earth's ellipticity for fast calculation, and clips latitudes to ~85.05° for square presentation. De ...
Lambert azimuthal equal-area projection of the world. The center is 0° N 0° E. The antipode is 0° N 180° E, near Kiribati in the Pacific Ocean.That point is represented by the entire circular boundary of the map, and the ocean around that point appears along the entire boundary.
The antipodal map preserves orientation (is homotopic to the identity map) [2] when is odd, and reverses it when is even. Its degree is ( − 1 ) n + 1 . {\displaystyle (-1)^{n+1}.} If antipodal points are identified (considered equivalent), the sphere becomes a model of real projective space .
The history of south-up map orientation as political statement can be traced back to the early 1900s. Joaquín Torres García, a Uruguayan modernist painter, created one of the first maps to make a political statement related to north-south map positions entitled "América Invertida". "Torres-García placed the South Pole at the top of the ...
Antipodes, points on the Earth's surface that are diametrically opposed; Antipodes Islands, inhospitable volcanic islands south of New Zealand; The Antipodes, a principally British term for Australia and New Zealand (or more broadly the area known as Australasia), based on a rough proximity to the antipode of Britain
Tematagi is the closest landmass to the antipode of Mecca. This means that the correct direction of Muslim prayer ( qibla ) varies widely between Tematagi and its neighboring islands. The exact antipode of Tematagi, however, is a point roughly 4 kilometers northwest of the Jeddah Eastern Forest , a recreation area east of the Saudi-Arabian ...