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List of Minerals Approved by IMA (K)
This list includes those recognised minerals beginning with the letter K. The International Mineralogical Association is the international group that recognises new minerals and new mineral names, however minerals discovered before 1959 did not go through the official naming procedure, although some minerals published previously have been either confirmed or discredited since that date. This list contains a mixture of mineral names that have been approved since 1959 and those mineral names believed to still refer to valid mineral species (these are called "grandfathered" species). The list is divided into groups: The data was exported from mindat.org on 29 April 2005; updated up to 'IMA2018'. The minerals are sorted by name, followed by the structural group (rruff.info/ima and ima-cnmnc by mineralienatlas.de, mainly) or chemical class (mindat.org and basics), the year of publication (if it's before of an IMA approval procedure), the IMA approval and the Nickel–Strunz code. The first link is to mindat.org, the second link is to webmineral.com, and the third is to the Handbook of Mineralogy (Mineralogical Society of America).
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  • 09 Oct 2022
Topic Review
Cierva Air Horse
The Cierva W.11 Air Horse was a helicopter developed by the Cierva Autogiro Company in the United Kingdom during the mid-1940s. The largest helicopter in the world at the time of its debut, the Air Horse was unusual for using three rotors mounted on outriggers, and driven by a single engine mounted inside the fuselage.
  • 6.7K
  • 09 Oct 2022
Topic Review
Emotion Recognition
Emotion recognition is the process of identifying human emotion, most typically from facial expressions as well as from verbal expressions. This is both something that humans do automatically but computational methodologies have also been developed.
  • 1.8K
  • 10 Oct 2022
Topic Review
Stairlift
A stair lift is a mechanical device for lifting people, typically those with disabilities, up and down stairs. For sufficiently wide stairs, a rail is mounted to the treads of the stairs. A chair or lifting platform is attached to the rail. A person gets onto the chair or platform and is lifted up or down the stairs by the chair which moves along the rail. Stairlifts are known variously as stair lifts, stair-lifts, chair lifts, stair gliders and by other names. This type of chair lift should not be confused with the chairlift used by skiers. The term stair climber can refer either to stair lifts, or more commonly to the exercise equipment by the same name. Some of the first stair lifts to be produced commercially were advertised and sold in the U.S. in the 1930s by the Inclinator Company of America. Many users at the time were victims of polio. Now they are seen for use in elderly, fall-prone individuals, and the disabled who are unable to navigate stairs safely.
  • 1.6K
  • 10 Oct 2022
Topic Review
History of VFX
The History of Visual Effects (VFX) is intertwined with that of cinematography, special effects, animation and computer-generated imagery.
  • 24.0K
  • 10 Oct 2022
Topic Review
GQL Graph Query Language
In September 2019 a proposal for a project to create a new standard graph query language (ISO/IEC 39075 Information Technology — Database Languages — GQL). was approved by a vote of national standards bodies which are members of ISO/IEC Joint Technical Committee 1(ISO/IEC JTC 1). JTC 1 is responsible for international Information Technology standards. GQL is intended to be a declarative database query language, like SQL.
  • 2.3K
  • 09 Oct 2022
Topic Review
Muhammad Ibn Musa Al-Khwarizmi
Muḥammad ibn Mūsā al-Khwārizmī (Persian: محمد بن موسی خوارزمی‎, romanized: Moḥammad ben Musā Khwārazmi; c. 780 – c. 850), or al-Khwarizmi and formerly Latinized as Algorithmi, was a Persian polymath who produced vastly influential works in mathematics, astronomy, and geography. Around 820 CE he was appointed as the astronomer and head of the library of the House of Wisdom in Baghdad.:14 Al-Khwarizmi's popularizing treatise on algebra (The Compendious Book on Calculation by Completion and Balancing, c. 813–833 CE:171) presented the first systematic solution of linear and quadratic equations. One of his principal achievements in algebra was his demonstration of how to solve quadratic equations by completing the square, for which he provided geometric justifications.:14 Because he was the first to treat algebra as an independent discipline and introduced the methods of "reduction" and "balancing" (the transposition of subtracted terms to the other side of an equation, that is, the cancellation of like terms on opposite sides of the equation), he has been described as the father or founder of algebra. The term algebra itself comes from the title of his book (the word al-jabr meaning "completion" or "rejoining"). His name gave rise to the terms algorism and algorithm, as well as Spanish and Portuguese terms algoritmo, and Spanish guarismo and Portuguese algarismo meaning "digit". In the 12th century, Latin translations of his textbook on arithmetic (Algorithmo de Numero Indorum) which codified the various Indian numerals, introduced the decimal positional number system to the Western world. The Compendious Book on Calculation by Completion and Balancing, translated into Latin by Robert of Chester in 1145, was used until the sixteenth century as the principal mathematical text-book of European universities. In addition to his best-known works, he revised Ptolemy's Geography, listing the longitudes and latitudes of various cities and localities.:9 He further produced a set of astronomical tables and wrote about calendaric works, as well as the astrolabe and the sundial. He also made important contributions to trigonometry, producing accurate sine and cosine tables, and the first table of tangents.
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  • 10 Oct 2022
Topic Review
Ethics of Animal Research
The ethics of animal research is a concept discussed in theology, ethics, philosophy, science, and more recently bioethics. The main discussions in the moral and ethical philosophical community concern themselves with questions as to whether species other than humans can be subject to being morally wronged and whether suffering and being part of a moral community are mutually exclusive. Contemporary views for the use of animals as tools for research often take a philosophical utilitarian position such as reasoning that the overall good produced from results outway the suffering produced by testing on animals. Scientists mostly accept that animals suffer on the basis that their results rely on similarities between animals and humans. Human exceptionalism and Speciesism stem from anthropocentrism and are central recurring themes within the ethics of animal research. The main concepts that appear throughout ethical discussions of animal research include: Membership in the moral community, Absolutism views, Utilitarian views, and Anthropocentrism such as Speciesism, Human exceptionalism and Personhood theories.
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  • 09 Oct 2022
Topic Review
Psychology of Education
The relationship between intelligence and education is one that scientists have been studying for years. It is correct to say that higher level of education leads to greater level of intelligence and also true the other way around, however, it does not apply for every situation. A study done in Germany proved how education did affect the intelligence of students and proof of intelligence affecting education was seen in the military, where people with lesser intelligence were observed to have a slower learning speed and benefited less from education. Typically if maternal and paternal IQ is high, it is very likely for the child to have a high IQ as well. A study conducted by Plug and Vijverberg showed that the environment that a child grows up in also affects his or her future academic performance. The children that were raised by their biological parents had a greater similarity in terms of intelligence and academic performance to their families than those raised by foster parents. Another study was conducted by Campbell and Ramey to test the socioeconomic effect on intelligence and it showed promising results for children at high risk of academic failure when there was an early intervention.
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  • 09 Oct 2022
Topic Review
Lieber Code
The Lieber Code of April 24, 1863, issued as General Orders No. 100, Adjutant General's Office, 1863, was an instruction signed by U.S. President Abraham Lincoln to the Union Forces of the United States during the American Civil War that dictated how soldiers should conduct themselves in wartime. Its name reflects its author, the German–American legal scholar and political philosopher Franz Lieber.
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  • 09 Oct 2022
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