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Didymos Chromatic Tetrachord
Didymos may refer to: * 65803 Didymos, a near-Earth asteroid * Didymos (music theorist), ancient Greek music theorist * Several other ancient Greeks more commonly spelt ''Didymus''; see Didymus (other) * Didymos I (1921–2014), Oriental Orthodox bishop See also * * Didimus, a genus of beetles * Didymo (''Didymosphenia geminata''), a species of diatom * * Didymus (other) {{Disambiguation, hndis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
65803 Didymos
65803 Didymos (provisional designation ) is a sub-kilometer asteroid and binary system that is classified as a potentially hazardous asteroid and near-Earth object of the Apollo group. The asteroid was discovered in 1996 by the Spacewatch survey at Kitt Peak, and its small 160-meter minor-planet moon, named Dimorphos, was discovered in 2003. Due to its binary nature, the asteroid was then named ''Didymos'', the Greek word for 'twin'. Didymos's moon, Dimorphos, was the target of the DART mission to test the viability of asteroid impact avoidance by collision with a spacecraft, while the impact was witnessed by LICIACube, a flyby CubeSat component of the mission. Discovery Didymos was discovered on 11 April 1996 by the University of Arizona Steward Observatory's, and Lunar and Planetary Laboratory's, Spacewatch survey using its 0.9-meter telescope at Kitt Peak National Observatory in Arizona, United States. The binary nature of the asteroid was discovered by others; suspicion ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didymos (music Theorist)
Didymus the Musician (Greek: Δίδυμος) was a music theorist in Rome of the end of the 1st century BC or beginning of the 1st century AD, who combined elements of earlier theoretical approaches with an appreciation of the aspect of performance. Formerly assumed to be identical with the Alexandrian grammarian and lexicographer Didymus Chalcenterus, because Ptolemy and Porphyry referred to him as Didymus ''ho mousikos'' (the musician), classical scholars now believe that this Didymus was a younger grammarian and musician working in Rome at the time of Emperor Nero. He was a predecessor of Ptolemy at the library of Alexandria. According to Andrew Barker, his intention was to revive and produce contemporary performances of the music of Greek antiquity. The syntonic comma of 81/80 is sometimes called the ''comma of Didymus'' after him. Among his works was ''On the Difference between the Aristoxenians and the Pythagoreans'' (Περὶ τῆς διαφορᾶς τῶν Ἀριστ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didymus (other)
Didymus (Greek for "twin") may refer to: People Didymus * Arius Didymus (fl. 1st century BC), Stoic philosopher * Thomas the Apostle (died 72 AD), also known as Didymus * Didymus Chalcenterus (63 BC–10 AD), Hellenistic scholar and grammarian * Didymus the Blind (313–398), ecclesiastical writer of Alexandria * Didymus the Musician, music theorist in Alexandria of the 1st century * St Didymus (died 304), 4th century companion of StTheodora * Didymus, a member of the House of Theodosius * Didymus Mutasa (born 1935), Minister of National Security in Zimbabwe Didymos * Didymos (music theorist), ancient Greek music theorist * Didymos I (1921–2014), Catholicos of the East and Malankara Metropolitan, the Primate of the Malankara Church of India from 2005 to 2010. Fictional characters * Sir Didymus, a fictional character from the movie ''Labyrinth'' Animals * ''Didymus'' (beetle), a genus of weevils found in New Zealand, the Kermadec and Norfolk Islands * ''Leptodactylus didym ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didimus
''Didimus'' is a genus of beetles of the family Passalidae Passalidae is a family of beetles known variously as "bessbugs", "bess beetles", "betsy beetles" or "horned passalus beetles". Nearly all of the 500-odd species are tropical; species found in North America are notable for their size, ranging fro .... Distribution These beetles can be found in tropical Africa. Species * '' Didimus aberrans'' (Kuwert, 1898) * '' Didimus africanus'' (Percheron, 1844) * '' Didimus aloysiisabaudiae'' (Pangella, 1906) * '' Didimus alvaradoi'' Corella, 1941 * '' Didimus communis'' (Kuwert, 1898) * '' Didimus crassus'' Arrow, 1906 (1907) * '' Didimus ealaensis'' Hincks, 1933 * '' Didimus haroldi'' Kuwert, 1898 * '' Didimus knutsoni'' Auriv., 1886 * '' Didimus laevis'' (Klug, 1835) * '' Didimus latifrons'' Corella, 1941 * '' Didimus latipunctus'' Zang, 1905 * '' Didimus nachtigali'' Kuwert, 1891 * '' Didimus parastictus'' (Imohoff, 1843) * '' Didimus punctipectus'' (Kaup, 1868) * '' Didimus ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Didymo
''Didymosphenia geminata'', commonly known as didymo or rock snot, is a species of diatom that produces nuisance growths in freshwater rivers and streams with consistently cold water temperatures and low nutrient levels. It is native to the northern hemisphere, and considered an invasive species in Australia, Argentina, New Zealand, and Chile. Even within its native range, it has taken on invasive characteristics since the 1980s. It is not considered a significant human health risk, but it can affect stream habitats and sources of food for fish and make recreational activities unpleasant. This microscopic alga can be spread in a single drop of water. Description ''Didymosphenia geminata'' is a diatom, which is a type of single-celled organism unique for their silica (SiO2) cell walls. The life history of diatoms includes both vegetative and sexual reproduction, though the sexual stage is not yet documented in this species. Although it is symmetric only along the apical axis, ty ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
