Search results
Results From The WOW.Com Content Network
Satellite view of Africa 1916 physical map of Africa. The average elevation of the continent approximates closely to 600 m (2,000 ft) above sea level, roughly near to the mean elevation of both North and South America, but considerably less than that of Asia, 950 m (3,120 ft). In contrast with other continents, it is marked by the comparatively ...
One common approach categorizes Africa directionally, e.g., by cardinal direction (compass direction): North Africa lies north of the Sahara and runs along the Mediterranean coast. West Africa is the portion roughly west of 10° east longitude, excluding Northern Africa and the Maghreb. West Africa contains large portions of the Sahara Desert ...
The Fra Mauro map of 1459 shows a more detailed picture of Africa as a continent, including the Cape of Diab at its southernmost point, reflecting an expedition of 1420. Sebastian Münster 's Cosmographia (1545) labels the Cape of Good Hope , reached by Bartolomeu Dias in 1488, as caput bonae spei .
A 3-map graph is a planar graph, and every planar graph can be represented as a 3-map graph. Every 4-map graph is a 1-planar graph, a graph that can be drawn with at most one crossing per edge, and every optimal 1-planar graph (a graph formed from a planar quadrangulation by adding two crossing diagonals to every quadrilateral face) is a 4-map ...
In most US cities, a city block is between 1 ⁄ 16 and 1 ⁄ 8 mi (100 and 200 m). In Manhattan, the measurement "block" usually refers to a north–south block, which is 1 ⁄ 20 mi (80 m). Sometimes people living in places (like Manhattan) with a regularly spaced street grid will speak of long blocks and short blocks.
An approximation of the AuthaGraph projection. AuthaGraph is an approximately equal-area world map projection invented by Japanese architect Hajime Narukawa [1] in 1999. [2] The map is made by equally dividing a spherical surface into 96 triangles, transferring it to a tetrahedron while maintaining area proportions, and unfolding it in the form of a rectangle: it is a polyhedral map projection.
The Index on Africa directory from The Norwegian Council for Africa; Aluka - Digital library of scholarly resources from and about Africa; Politics. Africa Action Africa Action is the oldest organization in the United States working on African affairs. It is a national organization that works for political, economic and social justice in Africa.
A workers' village (2570–2500 BC) at Giza, Egypt, housed a rotating labor force and was laid out in blocks of long galleries separated by streets in a formal grid. Many pyramid-cult cities used a common orientation: a north–south axis from the royal palace and an east–west axis from the temple, meeting at a central plaza where King and ...