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Hans Reck
Hans Gottfried Reck (24 January 1886 – 4 August 1937) was a German volcanologist and paleontologist. In 1913 he was the first to discover an ancient skeleton of a human in the Olduvai Gorge, in what is now Tanzania. He collaborated with Louis Leakey in a return expedition to the site in 1931. Birth and education Reck was born into a military family in Würzburg, Bavaria on 24 January 1886. He attended the universities of Wurzburg and Berlin, where he studied natural history and became deeply interested in volcanoes. Iceland In the summer of 1907 the geologist Walther von Knebel, a friend and fellow student of Reck's, disappeared during a field trip in Iceland. Hans Reck was charged with determining what had happened, and set out in June 1908 with two local guides and his fiancé, Ina von Grumbkow. The party traveled on horseback in eleven weeks. Reck and the Icelander Sigurður Sumarliðason were the first people ever to reach the summit of the Herðubreið volcano, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Volcanologist
A volcanologist, or volcano scientist, is a geologist who focuses on understanding the formation and eruptive activity of volcanoes. Volcanologists frequently visit volcanoes, sometimes active ones, to observe and monitor volcanic eruptions, collect eruptive products including tephra (such as Volcanic ash, ash or pumice), Rock (geology), rock and lava samples. One major focus of inquiry in recent times is the prediction of eruptions to alleviate the impact on surrounding populations and monitor natural hazards associated with volcanic activity. Geologists who research volcanic materials that make up the solid Earth are referred to as igneous petrologists. Etymology The word ''volcanologist'' (or ''vulcanologist'') is derived from the English volcanology (volcano + wikt:-logy, -logy), which was derived from the French wikt:volcanologie#French, volcanologie (or vulcanologie), which was further derived from the French word wikt:volcan#French, volcan (volcano), which was even furt ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stegosaur
Stegosauria is a group of herbivorous ornithischian dinosaurs that lived during the Jurassic and early Cretaceous periods. Stegosaurian fossils have been found mostly in the Northern Hemisphere (North America, Europe and Asia), Africa and South America. Their geographical origins are unclear; the earliest unequivocal stegosaurian, '' Bashanosaurus primitivus'', was found in the Bathonian Shaximiao Formation of China. Stegosaurians were armored dinosaurs (thyreophorans). Originally, they did not differ much from more primitive members of that group, being small, low-slung, running animals protected by armored scutes. An early evolutionary innovation was the development of spikes as defensive weapons. Later species, belonging to a subgroup called the Stegosauridae, became larger, and developed long hindlimbs that no longer allowed them to run. This increased the importance of active defence by the thagomizer, which could ward off even large predators because the tail was in a highe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
World War I
World War I or the First World War (28 July 1914 – 11 November 1918), also known as the Great War, was a World war, global conflict between two coalitions: the Allies of World War I, Allies (or Entente) and the Central Powers. Fighting took place mainly in European theatre of World War I, Europe and the Middle Eastern theatre of World War I, Middle East, as well as in parts of African theatre of World War I, Africa and the Asian and Pacific theatre of World War I, Asia-Pacific, and in Europe was characterised by trench warfare; the widespread use of Artillery of World War I, artillery, machine guns, and Chemical weapons in World War I, chemical weapons (gas); and the introductions of Tanks in World War I, tanks and Aviation in World War I, aircraft. World War I was one of the List of wars by death toll, deadliest conflicts in history, resulting in an estimated World War I casualties, 10 million military dead and more than 20 million wounded, plus some 10 million civilian de ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sedimentary Rock
Sedimentary rocks are types of rock (geology), rock formed by the cementation (geology), cementation of sediments—i.e. particles made of minerals (geological detritus) or organic matter (biological detritus)—that have been accumulated or deposited at Earth's surface. Sedimentation is any process that causes these particles to settle in place. Geological detritus originates from weathering and erosion of existing rocks, or from the solidification of molten lava blobs erupted by volcanoes. The geological detritus is transported to the place of deposition by water, wind, ice or Mass wasting, mass movement, which are called agents of denudation. Biological detritus is formed by bodies and parts (mainly shells) of dead aquatic organisms, as well as their fecal mass, suspended in water and slowly piling up on the floor of water bodies (marine snow). Sedimentation may also occur when dissolved minerals precipitate from aqueous solution, water solution. The sedimentary rock cover of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pleistocene
The Pleistocene ( ; referred to colloquially as the ''ice age, Ice Age'') is the geological epoch (geology), epoch that lasted from to 11,700 years ago, spanning the Earth's most recent period of repeated glaciations. Before a change was finally confirmed in 2009 by the International Union of Geological Sciences, the cutoff of the Pleistocene and the preceding Pliocene was regarded as being 1.806 million years Before Present (BP). Publications from earlier years may use either definition of the period. The end of the Pleistocene corresponds with the end of the last glacial period and also with the end of the Paleolithic age used in archaeology. The name is a combination of Ancient Greek () 'most' and (; Latinized as ) 'new'. The aridification and cooling trends of the preceding Neogene were continued in the Pleistocene. The climate was strongly variable depending on the glacial cycle, oscillating between cold Glacial period, glacial periods and warmer Interglacial, int ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Maasai People
The Maasai (;) are a Nilotic peoples, Nilotic ethnic group inhabiting northern, central and southern Kenya and northern Tanzania, near the African Great Lakes region.Maasai - Introduction Jens Fincke, 2000–2003 Their native language is the Maasai language, a Nilotic languages, Nilotic language related to Dinka language, Dinka, Kalenjin languages, Kalenjin and Nuer language, Nuer. Except for some elders living in rural areas, most Maasai people speak the official languages of Kenya and Tanzania—Swahili language, Swahili and English language, English. The Maasai population has been reported as numbering 1,189,522 in Kenya in the 2019 census compared to 377,089 in the 1989 census. However, many Maasai view the census as government meddling and either refuse to participate or actively pro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Neurologist
Neurology (from , "string, nerve" and the suffix -logia, "study of") is the branch of medicine dealing with the diagnosis and treatment of all categories of conditions and disease involving the nervous system, which comprises the brain, the spinal cord and the peripheral nerves. Neurological practice relies heavily on the field of neuroscience, the scientific study of the nervous system, using various techniques of neurotherapy. IEEE Brain (2019). "Neurotherapy: Treating Disorders by Retraining the Brain". ''The Future Neural Therapeutics White Paper''. Retrieved 23.01.2025 from: https://brain.ieee.org/topics/neurotherapy-treating-disorders-by-retraining-the-brain/#:~:text=Neurotherapy%20trains%20a%20patient's%20brain,wave%20activity%20through%20positive%20reinforcement International Neuromodulation Society, Retrieved 23 January 2025 from: https://www.neuromodulation.com/ Val Danilov I (2023). "The Origin of Natural Neurostimulation: A Narrative Review of Noninvasive Brai ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Wilhelm Kattwinkel
William Kattwinkel (27 March 1866, in Kierspe – 21 January 1935, in Partenkirchen) was a German neurologist and paleontologist. He was particularly known for the discovery of the fossil deposit in the Olduvai Gorge, which in the following years delivered many findings of hominins. Life The son of the merchant William Kattwinkel (died 1877) and Henriette Kattwinkel, born Bancklotz (1833–1898) studied science in Bonn and Strasbourg, from 1894, medicine in Bonn, Königsberg and Erlangen. He received his Ph.D. in 1892 and obtained an MD in 1894 in Munich. In 1895 he married in Schwelm Martha (born 1872), daughter of the factory owner Julius Schmidt. After his military service Kattwinkel was a volunteer assistant to Hugo von Ziemssen and a guest student from 1900 to 1905 at Hôpital Salpêtrière and the Bicêtre in Paris. In 1902 he qualified as a professor in Munich, and in 1909 was appointed Associate Professor of Neurology and gained a passing knowledge of paleontology, es ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Manyara
Lake Manyara also known as Lake Moya among the Iraqw people is a lake located in Monduli District of Arusha Region, Tanzania and is the seventh-largest lake of Tanzania by surface area, at . It is a shallow, alkaline lake in the Natron-Manyara-Balangida branch of the East African Rift The East African Rift (EAR) or East African Rift System (EARS) is an active continental rift zone in East Africa. The EAR began developing around the onset of the Miocene, 22–25 million years ago. It was formerly considered to be part of a l .... The northwest quadrant of the lake (about 200 sq, km.) is included within Lake Manyara National Park and it is part of the Lake Manyara Biosphere Reserve, established in 1981 by UNESCO as part of its Man and the Biosphere Programme. There are differing explanations for how Lake Manyara got its name. The name Manyara may come from the Maasai word "emanyara", which is the spiky, protective enclosure around a family homestead (boma). Possibly the 6 ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lake Natron
Lake Natron is a salt lake, salt or soda lake, alkaline lake located in north Ngorongoro District of Arusha Region in Tanzania with its far northern end crossing into Kenya. It is in the Gregory Rift, which is the eastern branch of the East African Rift. The lake is within the Lake Natron Basin, a Ramsar Convention, Ramsar Site wetland of international significance. It is the only regular breeding area for Africa's lesser flamingoes, although this habitat is not protected and is under threat from planned development projects. Description This lake is fed principally by the Southern Ewaso Ng'iro River, which rises in central Kenya, and by mineral-rich hot springs. It is quite shallow, less than deep, and varies in width depending on its water level. The lake is a maximum of long and wide. The surrounding area receives irregular seasonal rainfall, mainly between December and May totalling per year. Temperatures at the lake are frequently above . High levels of evaporation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gregory Rift
The Gregory Rift (''Ufa la Gregori'', in Swahili) is the eastern branch of the East African Rift fracture system. The rift is being caused by the separation of the Somali Plate from the Nubian Plate, driven by a thermal plume. Although the term is sometimes used in the narrow sense of the Kenyan Rift, the larger definition of the Gregory Rift is the set of faults and grabens extending southward from the Gulf of Aden through Ethiopia and Kenya into Northern Tanzania, passing over the local uplifts of the Ethiopian and Kenyan domes. Ancient fossils of early hominins, the ancestors of humans, have been found in the southern part of the Gregory Rift. Etymology The Gregory Rift is named in honour of the British geologist John Walter Gregory who explored the geology of the rift in 1892–93 and 1919.http://sp.lyellcollection.org/content/6/1/1.full.pdf Location The Gregory Rift lies within the Mozambique belt, often considered to be the remains of an orogenic system similar t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
