News tagged with africa
New study finds titan cells protect Cryptococcus
Giant cells called "titan cells" protect the fungus Cryptococcus neoformans during infection, according to two University of Minnesota researchers. Kirsten Nielsen, Ph.D., an assistant professor in the department of microb ...
18 hours ago |
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SAfrica stops short of being disappointed over SKA verdict
South Africa stopped short of expressing disappointment after it failed to win the bid to single-handily host the world's most powerful radio telescope.
Space & Earth / Space Exploration
May 25, 2012 |
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SKA super telescope to be built in Australia, South Africa (Update 2)
A long-running joust to host a radio telescope that would give mankind its farthest peek into the Universe ended on Friday with a Solomon-like judgement to split the site between Australia and South Africa.
May 25, 2012 |
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Dead ahead: Less rainfall for drought-sensitive southern hemisphere regions?
(Phys.org) -- Warming climate may mean less rainfall for drought-sensitive regions of the Southern Hemisphere, according to results just published by an international research team.
Space & Earth / Earth Sciences
May 21, 2012 |
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India halts plan to ship cheetahs from Africa
India's Supreme Court has halted a plan to re-introduce cheetahs to the country by shipping animals over from Africa after experts said the idea was "totally misconceived".
May 09, 2012 |
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For ASU student group, good bikes do grow on trees
(Phys.org) -- Imagine being unable to attend work or school, simply because mobility and rugged terrain prohibits you from leaving your front door. A student group, BooGood Bicycles, is seeking to find an ...
May 08, 2012 |
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The largest known true crocodile identified
A crocodile large enough to swallow humans once lived in East Africa, according to a University of Iowa researcher.
Other Sciences / Archaeology & Fossils
May 05, 2012 |
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Ancient network of rivers and lakes found in Arabian Desert
(Phys.org) -- Satellite images have revealed that a network of ancient rivers once coursed their way through the sand of the Arabian Desert, leading scientists to believe that the region experienced wetter ...
Other Sciences / Archaeology & Fossils
May 01, 2012 |
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New method shows the best locations in Africa for improving maize yields
By using a combination of geographic information systems (GIS) and statistical analysis, researchers can determine the areas in Africa where the chances of improving the maize harvest are better or worse. ...
Apr 27, 2012 |
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Did climate change shape human evolution?
(Phys.org) -- As human ancestors rose on two feet in Africa and began their migrations across the world, the climate around them got warmer, and colder, wetter and drier. The plants and animals they competed ...
Other Sciences / Archaeology & Fossils
Apr 24, 2012 |
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Most detailed maps yet of Africa's groundwater
A scattergun approach to borehole drilling in Africa is likely to be unsuccessful.
Apr 20, 2012 |
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SKA super-telescope: Split site being considered
Plans to build the world's most powerful radio telescope are looking at whether the site can be split between rival bidders South Africa and Australia, organisers said on Thursday.
Apr 19, 2012 |
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Climate change doubles cost of conserving nature
Climate change will make conservation of biodiversity, and all the associated human benefits such as clean water and clean air, more challenging and expensive, with costs increasing by more than 100 percent ...
Apr 17, 2012 |
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Apple iPad arriving in SKorea, 11 more countries
Apple said Monday it would start marketing its new iPad on Friday in South Korea and 11 other countries, and the hot-selling tablet would be available in more than 50 countries by the end of the month.
Electronics / Consumer & Gadgets
Apr 16, 2012 |
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UN chief to 'hang out' at Google social network
UN Secretary-General Ban Ki-moon is scheduled to take part in a public video chat "hangout" at Google's social network on Tuesday with young people from around the world.
Apr 09, 2012 |
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Africa
Africa is the world's second-largest and second most-populous continent, after Asia. At about 30.2 million km² (11.7 million sq mi) including adjacent islands, it covers 6% of the Earth's total surface area and 20.4% of the total land area. With a billion people (as of 2009, see table) in 61 territories, it accounts for about 14.8% of the World's human population. The continent is surrounded by the Mediterranean Sea to the north, the Suez Canal and the Red Sea to the northeast, the Indian Ocean to the southeast, and the Atlantic Ocean to the west. Not counting the disputed territory of Western Sahara, there are 53 countries, including Madagascar and various island groups, associated with the continent.
Africa, particularly central eastern Africa, is widely regarded within the scientific community to be the origin of humans and the Hominidae tree (great apes), as evidenced by the discovery of the earliest hominids and their ancestors, as well as later ones that have been dated to around seven million years ago – including Sahelanthropus tchadensis, Australopithecus africanus, A. afarensis, Homo erectus, H. habilis and H. ergaster – with the earliest Homo sapiens (human) found in Ethiopia being dated to ca. 200,000 years ago.
Africa straddles the equator and encompasses numerous climate areas; it is the only continent to stretch from the northern temperate to southern temperate zones.
For more information about Africa, read the full article at
Wikipedia.
This text uses material from Wikipedia and is available under the GNU Free Documentation License.