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Gottlob Linck
Gottlob Eduard Linck (20 February 1858, Ötisheim – 22 December 1947, Jena) was a German mineralogist. From 1879, he studied at the polytechnic college in Stuttgart, followed by classes at the Universities of Strasbourg and Tübingen. In 1888 he was habilitated for mineralogy and petrography at Strasbourg, where in 1894, he became an associate professor. Later the same year, he was named professor of mineralogy and geology at the University of Jena, a position he maintained until his retirement in 1930. On five occasions, he served as university rector at Jena.Linck, Gottlob @ NDB/ADB Deutsche Biographie His wide-ranging research covered many facets of geology and mineralogy. He examined the various properties of |
Ötisheim
Ötisheim, known in local dialect as Aize, Gemeinde Ötisheim, retrieved 1 June 2018 is a municipality in the Enz district of , . History Ötisheim became a property of around 1177 and remained as such until it was finally and permanently dissolved in 1806. The district of |
Kaolin
Kaolinite ( ) is a clay mineral, with the chemical composition Al2 Si2 O5( OH)4. It is an important industrial mineral. It is a layered silicate mineral, with one tetrahedral sheet of silica () linked through oxygen atoms to one octahedral sheet of alumina () octahedra. Rocks that are rich in kaolinite are known as kaolin () or china clay. Kaolin is occasionally referred to by the antiquated term lithomarge, from the Ancient Greek ''litho-'' and Latin ''marga'', meaning 'stone of marl'. Presently the name lithomarge can refer to a compacted, massive form of kaolin. The name ''kaolin'' is derived from Gaoling (), a Chinese village near Jingdezhen in southeastern China's Jiangxi Province. The name entered English in 1727 from the French version of the word: , following François Xavier d'Entrecolles's reports on the making of Jingdezhen porcelain. Kaolinite has a low shrink–swell capacity and a low cation-exchange capacity (1–15 meq/100 g). It is a soft, earthy, usu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1947 Deaths
It was the first year of the Cold War, which would last until 1991, ending with the dissolution of the Soviet Union. Events January * January–February – Winter of 1946–47 in the United Kingdom: The worst snowfall in the country in the 20th century causes extensive disruption of travel. Given the low ratio of private vehicle ownership at the time, it is mainly remembered in terms of its effects on the railway network. * January 1 - The Canadian Citizenship Act comes into effect. * January 4 – First issue of weekly magazine ''Der Spiegel'' published in Hanover, Germany, edited by Rudolf Augstein. * January 10 – The United Nations adopts a resolution to take control of the free city of Trieste. * January 15 – Elizabeth Short, an aspiring actress nicknamed the "Black Dahlia", is found brutally murdered in a vacant lot in Los Angeles; the mysterious case is never solved. * January 16 – Vincent Auriol is inaugurated as president of France. * January 19 – Ferry ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1858 Births
Events January–March * January – **Benito Juárez (1806–1872) becomes Liberal President of Mexico. At the same time, conservatives install Félix María Zuloaga (1813–1898) as president. **William I of Prussia becomes regent for his brother, Frederick William IV, who had suffered a stroke. * January 9 ** British forces finally defeat Rajab Ali Khan of Chittagong ** Anson Jones, the last president of the Republic of Texas, commits suicide. * January 14 – Orsini affair: Felice Orsini and his accomplices fail to assassinate Napoleon III in Paris, but their bombs kill eight and wound 142 people. Because of the involvement of French émigrés living in Britain, there is a brief anti-British feeling in France, but the emperor refuses to support it. * January 25 – The ''Wedding March'' by Felix Mendelssohn becomes a popular wedding recessional, after it is played on this day at the marriage of Queen Victoria's daughter Victoria, Princess Royal, to Pri ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ernst Teichmann
Ernst Gustav Georg Teichmann (20 February 1869, Nienburg, Lower Saxony, Nienburg – 27 June 1919, Frankfurt am Main) was a German theologian and zoologist known for his investigations in the field of the tsetse fly and for his books on birth, fertilisation, heredity and death. Life and work He studied theology in Lausanne, Giessen, Berlin and Marburg, obtaining his license in theology at Bonn in 1896. From 1898 to 1900, he studied zoology at the University of Würzburg, afterwards continuing his education in zoology at Naples and Marburg. In 1909–10 he worked at the Bernhard Nocht Institute for Tropical Medicine, Institute for Maritime and Tropical Diseases in Hamburg, and from 1911 onward, served as a hydrozoologist and departmental head at the institute for hygiene in Frankfurt. He spent a prolonged time in Kenya for studies of the tsetse fly and the animal trypanosomiasis. There he made experiments with hydrogen cyanide to analyse the toxic effect on mosquitoes and lice. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hermann Theodor Simon
Hermann Theodor Simon (german: ˈziːmɔn, lang; 1 January 1870, in Kirn – 22 December 1918, in Göttingen) was a German physicist. Biography He studied physics at the Universities of Heidelberg and Berlin, earning his doctorate in 1894 under August Kundt with a thesis on the dispersion of ultraviolet radiation. Afterwards, he served as an assistant to Eilhard Wiedemann at Erlangen, obtaining his habilitation in 1896. Two years later, he became an assistant to Eduard Riecke at the University of Göttingen, then relocated to Frankfurt am Main as director of the physics laboratory. In 1901 he returned to Göttingen as an associate professor and director of the department of applied electricity. In 1907 he was appointed as a full professor at the University of Göttingen. With Eduard Riecke, he was editor of the physics journal ''Physikalische Zeitschrift''. Selected writings * ''Über Dispersion ultravioletter Strahlen'', 1894 - On dispersion of ultraviolet radiation (gradua ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Karl Schaum
Ferdinand Karl Franz Schaum (14 July 1870, Frankfurt am Main – 30 January 1947, Gießen) was a German chemist who specialized in the field of photochemistry. He studied mathematics and sciences at the Universities of Basel, Berlin, Leipzig and Marburg, earning his doctorate at the latter institution in 1893. Afterwards, he served as an assistant to Theodor Zincke at Marburg and to Wilhelm Ostwald in Leipzig. In 1897 he obtained his habilitation at Marburg with a thesis on types of isometry.Professorenkatalog der Universität Leipzig Biographical sketch In 1904 he became an associate professor of at the University of Marburg, whe ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Friedrich Oltmanns
Friedrich Oltmanns (11 July 1860, in Oberndorf – 13 December 1945) was a German phycologist. In 1884 he received his doctorate at the University of Strasbourg, afterwards working as an assistant at the University of Rostock (from 1885). In 1893, he was appointed an associate professor of botany at the University of Freiburg, where in 1902 he became a full professor and director of the botanical garden. With Max Verworn, Hermann Theodor Simon, Eugen Korschelt and others, he was co-editor of the 10-volume ''Handwörterbuch der Naturwissenschaften''. He was the author of the three volume ''Morphologie und Biologie der Algen'' (Morphology and biology of algae): * Volume 1: Chrysophyceae, Chlorophyceae. * Volume 2: Phaeophyceae, Rhodophyceae. * Volume 3: ''Morphologie, Fortpflanzung, die Ernährung der Algen, der Haushalt der Gewässer, die Lebensbedingungen, Vegetations-Perioden, das Zusammenleben'' (Morphology, reproduction, etc.). The algae genera of ''Oltmannsiella' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Max Verworn
Max Richard Constantin Verworn (4 November 1863 – 23 November 1921) was a German physiologist who was a native of Berlin. He studied medicine and natural sciences in Berlin, and later moved to Jena, where he furthered his studies with Ernst Haeckel (1834–1919) and William Thierry Preyer (1841–1897). In 1895 he became a professor at the University of Jena, and in 1901 a professor at the physiological institute at Göttingen. Later, as successor to Eduard Pflüger (1829-1910), he became a professor at the University of Bonn (1910). In 1902 he founded the journal ''Zeitschrift für Allgemeine Physiologie'' (Journal of General Physiology), and was its publisher until his death in 1921. Max Verworn is remembered for his research in the field of experimental physiology, and especially for his work involving cellular physiology. He did extensive studies of the elementary physiological processes that take place in muscle tissue, nerve fibers and sensory organs. He conducted re ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Eugen Korschelt
Eugen Korschelt (28 September 1858, in Zittau – 28 December 1946, in Marburg) was a German zoologist. He is known for his research in the field of comparative embryology and his work involving biological regeneration and transplantation. He served as a lecturer at the Universities of Freiburg and Berlin. becoming a professor of zoology and comparative anatomy at the University of Marburg in 1892. At Marburg, he succeeded Richard Greeff as director of the zoological institute, and twice served as university rector (1904/05, 1914/15). In 1912/13 he was president of the ''Deutsche Zoologische Gesellschaft'' (German Zoological Society). Organisms with the specific epithet of ''korschelti'' are named after him, an example being the ribbon worm species '' Amphiporus korschelti''. Published works With Austrian zoologist Karl Heider, he co-wrote an important textbook on comparative embryology called ''Lehrbuch der vergleichenden Entwicklungsgeschichte der wirbellosen Thiere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Limestone
Limestone ( calcium carbonate ) is a type of carbonate sedimentary rock which is the main source of the material lime. It is composed mostly of the minerals calcite and aragonite, which are different crystal forms of . Limestone forms when these minerals precipitate out of water containing dissolved calcium. This can take place through both biological and nonbiological processes, though biological processes, such as the accumulation of corals and shells in the sea, have likely been more important for the last 540 million years. Limestone often contains fossils which provide scientists with information on ancient environments and on the evolution of life. About 20% to 25% of sedimentary rock is carbonate rock, and most of this is limestone. The remaining carbonate rock is mostly dolomite, a closely related rock, which contains a high percentage of the mineral dolomite, . ''Magnesian limestone'' is an obsolete and poorly-defined term used variously for dolomite, for limes ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Crystallography
Crystallography is the experimental science of determining the arrangement of atoms in crystalline solids. Crystallography is a fundamental subject in the fields of materials science and solid-state physics (condensed matter physics). The word "crystallography" is derived from the Greek word κρύσταλλος (''krystallos'') "clear ice, rock-crystal", with its meaning extending to all solids with some degree of transparency, and γράφειν (''graphein'') "to write". In July 2012, the United Nations recognised the importance of the science of crystallography by proclaiming that 2014 would be the International Year of Crystallography. denote a direction vector (in real space). * Coordinates in ''angle brackets'' or ''chevrons'' such as <100> denote a ''family'' of directions which are related by symmetry operations. In the cubic crystal system for example, would mean 00 10 01/nowiki> or the negative of any of those directions. * Miller indices in ''parentheses'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
