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Per Geijer
Per Adolf Geijer (born 7 May 1886 in Svealand, died 18 April 1976 in Danderyd) was a Swedish geologist, mineralogist, and professor. He was a member of the Geijer family (son of Gottschalk Geijer, grandson of Per Adolf Geijer and grandfather of Per Olof Nisser). Geijer received his doctoral degree and was named as an associate professor of petrography at Stockholm University in 1910. He undertook a trip to North America in 1913 to study mining operations there and in 1916 became a state geologist at the Swedish Geological Survey (SGU). He was professor of mineralogy and geology at the Royal Institute of Technology from 1931 to 1941 and director general and head of SGU from 1942 to 1951. His works dealt mainly with Sweden's ores and the geological conditions under which they occur. His works deal with the ore fields at Kirunavaara, Luossavaara, Tuollavaara and in Falutrakten. Geijer was elected in 1934 as a member of the Royal Swedish Academy of Engineering Sciences and in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Perite
Perite is a mineral that has a general chemical formula of Pb Bi O2 Cl. The name is given for Per Adolf Geijer, a Swedish economic geologist with the Geological Survey of Sweden, who discovered the mineral in 1960 outside of Langban, Sweden. Perite is orthorhombic, space group Cmcm . In terms of its optical properties, Perite is anisotropic which means the velocity of light varies depending on direction through the mineral (i.e. it is birefringent). Its calculated relief is 1.45-1.461, which is moderate. It is colorless in plane polarized light, and it is weakly pleochroic. Perite is found in areas near igneous Igneous rock (derived from the Latin word ''ignis'' meaning fire), or magmatic rock, is one of the three main rock types, the others being sedimentary and metamorphic. Igneous rock is formed through the cooling and solidification of magma or ... extrusions in places like the Western United States, Southern Australia, and scattered around Europe. Crystallograp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
7 May
Events Pre-1600 * 351 – The Jewish revolt against Constantius Gallus breaks out after his arrival at Antioch. * 558 – In Constantinople, the dome of the Hagia Sophia collapses, twenty years after its construction. Justinian I immediately orders that the dome be rebuilt. *1274 – In France, the Second Council of Lyon opens; it ratified a decree to regulate the election of the Pope. * 1487 – The Siege of Málaga commences during the Spanish Reconquista. * 1544 – The Burning of Edinburgh by an English army is the first action of the Rough Wooing. 1601–1900 *1625 – State funeral of James VI and I (1566-1625) is held at Westminster Abbey. *1664 – Inaugural celebrations begin at Louis XIV of France's new Palace of Versailles. *1685 – Battle of Vrtijeljka between rebels and Ottoman forces. *1697 – Stockholm's royal castle (dating back to medieval times) is destroyed by fire. It is replaced in the 18th century by the current ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Institute Of Technology
The KTH Royal Institute of Technology ( sv, Kungliga Tekniska högskolan, lit=Royal Institute of Technology), abbreviated KTH, is a public research university in Stockholm, Sweden. KTH conducts research and education in engineering and technology and is Sweden's largest technical university. Currently, KTH consists of five schools with four campuses in and around Stockholm. KTH was established in 1827 as the ''Teknologiska institutet (Institute of Technology)'' and had its roots in the ''Mekaniska skolan (School of Mechanics)'' that was established in 1798 in Stockholm. But the origin of KTH dates back to the predecessor of the ''Mekaniska skolan'', the ''Laboratorium mechanicum'', which was established in 1697 by the Swedish scientist and innovator Christopher Polhem. The Laboratorium mechanicum combined education technology, a laboratory, and an exhibition space for innovations. In 1877 KTH received its current name, Kungliga Tekniska högskolan (KTH Royal Institute of Technol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Vem är Det
''Vem är det'', with the subtitle ''Svensk biografisk handbok'', is a Swedish " Who's Who" biographical reference publication which has been published in 46 editions since 1912. References External links''Vem är det''at Project Runeberg Project Runeberg ( sv, Projekt Runeberg) is a digital cultural archive initiative that publishes free electronic versions of books significant to the culture and history of the Nordic countries. Patterned after Project Gutenberg, it was founded ... Swedish biographical dictionaries {{bio-dict-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nordisk Familjebok
''Nordisk familjebok'' (, "Nordic Family Book") is a Swedish encyclopedia that was published in print from between 1876 and 1993, and that is now fully available in digital form via Project Runeberg at Linköping University. Despite their considerable age and relative obsolescence, the public domain editions of the encyclopedia remain important reference works in Finland, especially on Finnish Wikipedia. History First edition ''Nordisk familjebok'' began when Halmstad publisher hired an editor, linguist , in 1874 to publish a six-volume encyclopedia. Linder drew up a plan for the work, designed the editorial team and created a large circle of experts and literary figures, who submitted article proposals and wrote and reviewed them. Under Linder's direction, the articles were then edited to make them as formal, consistent and accurate as possible. Much attention was paid to Nordic subjects, mainly Swedish and Finnish, where sources and models were often lacking, so extensive ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dollaseite-(Ce)
Dollaseite-(Ce) is a sorosilicate end-member epidote rare-earth mineral which was discovered by Per Geijer (1927) in the Ostanmossa mine (Östanmossa gruva), Norberg district, Sweden. Dollaseite-(Ce), although not very well known, is part of a broad epidote group of minerals which are primarily silicates, the most abundant type of minerals on earth. Dollaseite-(Ce) forms as dark-brown subhedral crystals primarily in Swedish mines. With the ideal chemical formula, , dollaseite-(Ce) can be partially identified by its content of the rare earth element cerium. History The mineral provisionally named "magnesium orthite" by Geijer himself was renamed after structural refinement by Peacor and Dunn in 1988 led to its proper classification. The name dollaseite-(Ce) was chosen in honor of Wayne Dollase, who performed broad research on epidote minerals. The original confusion of the mineral's composition was because of a complex atomic composition where an exchange of cations leads to a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nils H
Nils is a Scandinavian given name, a chiefly Norwegian, Danish, Swedish and Latvian variant of Niels, cognate to Nicholas. People and animals with the given name * Nils Bergström (born 1985), Swedish ice hockey player * Nils Björk (1898–1989), Swedish Army lieutenant general * Nils Dacke (died 1543), Swedish rebel *Nils-Joel Englund (1907–1995), Swedish cross-country skier * Nils Ericson (1802–1870), Swedish inventor and engineer * Nils Frahm (born 1982), German pianist and producer * Nils Frykdahl, American musician *Nils Gründer (born 1997), German politician * Nils Hald (1897–1963), Norwegian actor *Nils Haßfurther (born 1999), German basketball player *Nils-Göran Holmqvist (born 1943), Swedish politician * Nils Kreicbergs (born 1996), Latvian handball player * Nils Liedholm (1922–2007), Swedish footballer and coach *Nils Lofgren (born 1951), American musician *Nils Lorens Sjöberg (1754-1822), Swedish officer and poet * Nils Mittmann (born 1979), German basketb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Brinell Medal
The Brinell scale characterizes the indentation hardness of materials through the scale of penetration of an indenter, loaded on a material test-piece. It is one of several definitions of hardness in materials science. History Proposed by Swedish engineer Johan August Brinell in 1900, it was the first widely used and standardised hardness test in engineering and metallurgy. The large size of indentation and possible damage to test-piece limits its usefulness. However, it also had the useful feature that the hardness value divided by two gave the approximate UTS in ksi for steels. This feature contributed to its early adoption over competing hardness tests. Test details The typical test uses a diameter steel ball as an indenter with a force. For softer materials, a smaller force is used; for harder materials, a tungsten carbide ball is substituted for the steel ball. The indentation is measured and hardness calculated as: :\operatorname=\frac where: :BHN = Brinell Ha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Swedish Academy Of Sciences
The Royal Swedish Academy of Sciences ( sv, Kungliga Vetenskapsakademien) is one of the Swedish Royal Academies, royal academies of Sweden. Founded on 2 June 1739, it is an independent, non-governmental scientific organization that takes special responsibility for promoting natural sciences and mathematics and strengthening their influence in society, whilst endeavouring to promote the exchange of ideas between various disciplines. The goals of the academy are: * to be a forum where researchers meet across subject boundaries, * to offer a unique environment for research, * to provide support to younger researchers, * to reward outstanding research efforts, * to communicate internationally among scientists, * to advance the case for science within society and to influence research policy priorities * to stimulate interest in mathematics and science in school, and * to disseminate and popularize scientific information in various forms. Every year, the academy awards the Nobel Priz ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Royal Swedish Academy Of Engineering Sciences
The Royal Swedish Academy of Engineering Sciences or ''Kungliga Ingenjörsvetenskapsakademien'' (IVA), founded on 24 October 1919 by King Gustaf V, is one of the royal academies in Sweden. The academy is an independent organisation, which promotes contact and exchange between business, research, and government, in Sweden and internationally. It is the world's oldest academy of engineering sciences.(OECD Reviews of Innovation Policy: Sweden 2012). Leadership The King is the patron of the Academy. The following people have been presidents of IVA since its foundation in 1919: *1919–1940: Axel F. Enström *1941–1959: Edy Velander *1960–1970: Sven Brohult *1971–1982: Gunnar Hambraeus *1982–1994: Hans G. Forsberg *1995–2000: Kurt Östlund *1999–2001: (temporary) Enrico Deiaco *2001–2008: Lena Treschow Torell *2008–2017: Björn O. Nilsson *2017–2023: Tuula Teeri Academy member Each year, outstanding scientists and engineers from universities and industrie ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Falun
Falun () is a city and the seat of Falun Municipality in Dalarna County, Sweden, with 37,291 inhabitants in 2010. It is also the capital of Dalarna County. Falun forms, together with Borlänge, a metropolitan area with just over 100,000 inhabitants. Falun was originally famous for its copper mine, and is today an important service and industrial city even though the mine is closed (since 1992). Faluån is a river, flowing through the city, separating it into two sides. Falu copper mine is located on one of the sides which during many centuries was one of Sweden's main business. This side of the river was usually called "the mining side", where not many plants grew due to the toxic smoke which contaminated the soil. On the other side of the river, where the smoke did not reach, set many large villas, which made this side to be called "the delightful side". The centre of Falun consists of classical pedestrian streets with small shops. In 1998, the city reclaimed the award of "the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
