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Stefan Kröpelin
Stefan Kröpelin is a geologist and climate researcher at the University of Cologne who specializes in studying the eastern Sahara desert and its climatic history. In 2017, he was awarded with the Communicator Award of the Deutsche Forschungsgemeinschaft for the excellent communication of his research both in Germany and international. Research The journal ''Nature'' described Kröpelin as "one of the most devoted Sahara explorers of our time." According to Siddiq Abd Algadir, president of the Sudanese Geologists' Union in Khartoum and a fellow student with Kröpelin in the 1980s, "Much of what we now know about the geology, the environments and even the people in some of the most remote parts of the Sahara, we really owe to tefan Kröpelinand the expeditions he has led." Contrary to other evidence that the Sahara suddenly changed from a wet to dry climate 5,000 years ago, Kröpelin's core samples at Lake Yoa suggests the transition took longer, some 3,000 years from 5,600 to 2, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sahara
The Sahara (, ) is a desert spanning across North Africa. With an area of , it is the largest hot desert in the world and the list of deserts by area, third-largest desert overall, smaller only than the deserts of Antarctica and the northern Arctic. The name "Sahara" is derived from , a broken plural form of ( ), meaning "desert". The desert covers much of North Africa, excluding the fertile region on the Mediterranean Sea coast, the Atlas Mountains of the Maghreb, and the Nile, Nile Valley in Egypt and the Sudan. It stretches from the Red Sea in the east and the Mediterranean in the north to the Atlantic Ocean in the west, where the landscape gradually changes from desert to coastal plains. To the south it is bounded by the Sahel, a belt of Tropical and subtropical grasslands, savannas, and shrublands, semi-arid tropical savanna around the Niger River valley and the Sudan (region), Sudan region of sub-Saharan Africa. The Sahara can be divided into several regions, including ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wall Street Journal
''The Wall Street Journal'' (''WSJ''), also referred to simply as the ''Journal,'' is an American newspaper based in New York City. The newspaper provides extensive coverage of news, especially business and finance. It operates on a subscription model, requiring readers to pay for access to most of its articles and content. The ''Journal'' is published six days a week by Dow Jones & Company, a division of News Corp. As of 2023, ''The'' ''Wall Street Journal'' is the largest newspaper in the United States by print circulation, with 609,650 print subscribers. It has 3.17 million digital subscribers, the second-most in the nation after ''The New York Times''. The newspaper is one of the United States' newspapers of record. The first issue of the newspaper was published on July 8, 1889. The editorial page of the ''Journal'' is typically center-right in its positions. The newspaper has won 39 Pulitzer Prizes. History Founding and 19th century A predecessor to ' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Academic Staff Of The University Of Cologne
An academy (Attic Greek: Ἀκαδήμεια; Koine Greek Ἀκαδημία) is an institution of tertiary education. The name traces back to Plato's school of philosophy, founded approximately 386 BC at Akademia, a sanctuary of Athena, the goddess of wisdom and Skills, skill, north of Ancient Athens, Athens, Greece. The Royal Spanish Academy defines academy as scientific, literary or artistic society established with public authority and as a teaching establishment, public or private, of a professional, artistic, technical or simply practical nature. Etymology The word comes from the ''Academy'' in ancient Greece, which derives from the Athenian hero, ''Akademos''. Outside the city walls of Athens, the Gymnasium (ancient Greece), gymnasium was made famous by Plato as a center of learning. The sacred space, dedicated to the goddess of wisdom, Athena, had formerly been an olive Grove (nature), grove, hence the expression "the groves of Academe". In these gardens, the philos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
21st-century German Geologists
File:1st century collage.png, From top left, clockwise: Jesus is crucified by Roman authorities in Judaea (17th century painting). Four different men (Galba, Otho, Vitellius, and Vespasian) claim the title of Emperor within the span of a year; The Great Fire of Rome (18th-century painting) sees the destruction of two-thirds of the city, precipitating the empire's first persecution against Christians, who are blamed for the disaster; The Roman Colosseum is built and holds its inaugural games; Roman forces besiege Jerusalem during the First Jewish–Roman War (19th-century painting); The Trưng sisters lead a rebellion against the Chinese Han dynasty (anachronistic depiction); Boudica, queen of the British Iceni leads a rebellion against Rome (19th-century statue); Knife-shaped coin of the Xin dynasty., 335px rect 30 30 737 1077 Crucifixion of Jesus rect 767 30 1815 1077 Year of the Four Emperors rect 1846 30 3223 1077 Great Fire of Rome rect 30 1108 1106 2155 Boudican revolt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ennedi Plateau
The Ennedi Plateau is located in the northeast of Chad, in the regions of Ennedi-Ouest Region, Ennedi-Ouest and Ennedi-Est Region, Ennedi-Est. It is considered a part of the group of mountains known as the Ennedi Massif found in Chad, which is one of the nine countries that make up the Sahel, Sahelian belt that spans the Atlantic Ocean to Sudan. The Ennedi is a sandstone bulwark in the middle of the Sahara, which was formed by erosion from wind and temperature. Many people occupied this area, such as hunters-gatherers (5,000-4,000 cal BC) and pastoralists (beginning 4,000 cal BC). The Ennedi area is also known for its large collection of rock art depicting mainly cattle, as these animals had the greatest financial, environmental, and cultural impact. This art dates back nearly 7,000 years ago. Today, two semi-nomadic groups, mainly Muslim, live in the Ennedi during the rainy months and pass through the area during the dry season. They rely on their herds of camels, donkeys, sheep, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Saudi Aramco World
''Aramco World'' (formerly ''Saudi Aramco World'') is a bi-monthly magazine published by Aramco Services Company, a US-based subsidiary of Saudi Aramco, the state-owned oil company of the Kingdom of Saudi Arabia. The first issue of the magazine appeared in November 1949. The bimonthly magazine is published in Houston, Texas. The magazine began as an internal company publication, but was expanded to a general interest format with distribution beyond company employees in the first decade of its existence. Published in English under the close editorial supervision of the Saudi authorities, the magazine was in particular intended to foster a sense of belonging at Aramco for employees and their families, as well as to more generally promote the company's interests. Its coverage focuses on the Arab world as a whole, albeit with an emphasis on perspectives thought to be of interest to its primarily American intended audience. History ''Aramco World'' was founded in 1949 in New York as a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World Heritage Site
World Heritage Sites are landmarks and areas with legal protection under an treaty, international treaty administered by UNESCO for having cultural, historical, or scientific significance. The sites are judged to contain "cultural and natural heritage around the world considered to be of outstanding value to humanity". To be selected, a World Heritage Site is nominated by its host country and determined by the UNESCO's World Heritage Committee to be a unique landmark which is geographically and historically identifiable, having a special cultural or physical significance, and to be under a sufficient system of legal protection. World Heritage Sites might be ancient ruins or historical structures, buildings, cities, deserts, forests, islands, lakes, monuments, mountains or wilderness areas, and others. A World Heritage Site may signify a remarkable accomplishment of humankind and serve as evidence of humanity's intellectual history on the planet, or it might be a place of grea ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lakes Of Ounianga
The Lakes of Ounianga (, ) are a series of lakes in the Sahara Desert, in North-Eastern Chad, occupying a basin in the mountains of West Tibesti Mountains, Tibesti and Ennedi Region, Ennedi East. It was added as a UNESCO World Heritage site in 2012. According to the UNESCO description, the lakes are in a hot and hyperarid desert that features a rainfall of less than a year. The lakes exhibit a variety of sizes, depths, chemical compositions and colorations. There is a total of 18 lakes in groups as follows: * Ounianga Kébir group: Lake Yoa, Lake Katam, Lake Oma (or Ouma), Lake Béver, Lake Midji, Lake Forodom; * Lake Motro, about southeast of Ounianga Kébir; * Ounianga Sérir group about southeast of Ounianga Kébir: Lake Melekui, Lake Dirke, Lake Ardjou, Lake Téli, Lake Obrom, Lake Élimé, Lake Hogo, Lake Djiara, Lake Ahoita, Lake Daléyala, and Lake Boukkou. The total surface area of the lakes is about . The largest of the lakes, Lake Yoa, has about a area and atta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
New York Times
''The New York Times'' (''NYT'') is an American daily newspaper based in New York City. ''The New York Times'' covers domestic, national, and international news, and publishes opinion pieces, investigative reports, and reviews. As one of the longest-running newspapers in the United States, the ''Times'' serves as one of the country's Newspaper of record, newspapers of record. , ''The New York Times'' had 9.13 million total and 8.83 million online subscribers, both by significant margins the List of newspapers in the United States, highest numbers for any newspaper in the United States; the total also included 296,330 print subscribers, making the ''Times'' the second-largest newspaper by print circulation in the United States, following ''The Wall Street Journal'', also based in New York City. ''The New York Times'' is published by the New York Times Company; since 1896, the company has been chaired by the Ochs-Sulzberger family, whose current chairman and the paper's publ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Yoa
Lake Yoa is the most famous, and second largest, of the Lakes of Ounianga, a series of Lakes in Borkou-Ennedi-Tibesti Region basin of northeastern Chad. It is located in the Ounianga Kebir about 40 km west of Ounianga Sarir. These lakes are remnants of a much larger lake which occupied this basin during the African Humid period, which lasted from approximately 15,000 to 5,500 years before present. There are currently 15 lakes in the basin with a total surface area of approximately square. Climate change Lake Yoa recently became of interest in the study of global climate trends when a team headed by , of the |
Long Now Foundation
The Long Now Foundation, established in 1996, is an American non-profit organization based in San Francisco that seeks to start and promote a long-term cultural institution. It aims to provide a counterpoint to what it views as today's "faster/cheaper" mindset and to promote "slower/better" thinking. The Long Now Foundation hopes to "creatively foster responsibility" in the framework of the next 10,000 years. In a manner somewhat similar to the Holocene calendar, the foundation uses 5-digit dates to address the Year 10,000 problem (e.g., by writing the current year "0" rather than ""). The organization's logo is , a capital X with an overline, a representation of 10,000 in Roman numerals. Projects The foundation has several ongoing projects, including a 10,000-year clock known as the ''Clock of the Long Now'', the ''Rosetta Project'', the ''Long Bet Project'', the open source ''Timeline Tool'' (also known as Longviewer), the ''Long Server'' and a monthly seminar series. Clock ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Khartoum
Khartoum or Khartum is the capital city of Sudan as well as Khartoum State. With an estimated population of 7.1 million people, Greater Khartoum is the largest urban area in Sudan. Khartoum is located at the confluence of the White Nile – flowing north from Lake Victoria – and the Blue Nile, flowing west from Lake Tana in Ethiopia. Divided by these two parts of the Nile, the Khartoum metropolitan area is a tripartite metropolis consisting of Khartoum proper and linked by bridges to Khartoum North ( ) and Omdurman ( ) to the west. The place where the two Niles meet is known as ''al-Mogran'' or ''al-Muqran'' (; English: "The Confluence"). Khartoum was founded in 1821 by Muhammad Ali of Egypt, Muhammad Ali Pasha, north of the ancient city of Soba (city), Soba. In 1882 the British Empire Anglo-Egyptian War, took control of the Egyptian government, leaving the administration of Sudan in the hands of the Egyptians. At the outbreak of the Mahdist War, the British attempted to evacu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
