Search results
Results from the WOW.Com Content Network
The history of fluid mechanics is a fundamental strand of the history of physics and engineering. The study of the movement of fluids (liquids and gases) and the forces that act upon them dates back to pre-history. The field has undergone a continuous evolution, driven by human dependence on water, meteorological conditions and internal ...
Geography of Africa. Africa is a continent comprising 63 political territories, representing the largest of the great southward projections from the main mass of Earth 's surface. [ 1] Within its regular outline, it comprises an area of 30,368,609 km 2 (11,725,385 sq mi), excluding adjacent islands. Its highest mountain is Kilimanjaro; its ...
A map of East Africa showing some of the historically active volcanoes (as red triangles) and the Afar Triangle (shaded at the center), which is a so-called triple junction (or triple point) where three plates are pulling away from one another: the Arabian Plate and two parts of the African Plate—the Nubian and Somali—splitting along the East African Rift Zone Main rift faults, plates ...
QGIS is a geographic information system (GIS) software that is free and open-source. [ 2] QGIS supports Windows, macOS, and Linux. [ 3] It supports viewing, editing, printing, and analysis of geospatial data in a range of data formats. QGIS was previously also known as Quantum GIS.
The Nubian Sandstone Aquifer System ( NSAS) is the world's largest known fossil water aquifer system. It is located underground in the Eastern end of the Sahara desert and spans the political boundaries of four countries in north-eastern Africa. [ 1] NSAS covers a land area spanning just over two million km 2, including north-western Sudan ...
Earliest European maps. The earliest cartographic depictions of Africa are found in early world maps . In classical antiquity, Africa (also Libya) was assumed to cover the quarter of the globe south of the Mediterranean, an arrangement that was adhered to in medieval T and O maps . The only part of Africa well known in antiquity was the coast ...
In paleoanthropology, the recent African origin of modern humans or the " Out of Africa " theory ( OOA) [ a] is the most widely accepted [ 1][ 2][ 3] model of the geographic origin and early migration of anatomically modern humans ( Homo sapiens ). It follows the early expansions of hominins out of Africa, accomplished by Homo erectus and then ...
Decoupage or découpage ( / ˌdeɪkuːˈpɑːʒ /; [ 1] French: [dekupaʒ]) is the art of decorating an object by gluing colored paper cutouts onto it in combination with special paint effects, gold leaf, and other decorative elements. Commonly, an object like a small box or an item of furniture is covered by cutouts from magazines or from ...