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Pisgah Astronomical Research Institute
Pisgah Astronomical Research Institute (PARI) (pronounced ''perry'') is a non-profit astronomical observatory located in the Pisgah National Forest near Balsam Grove, North Carolina. PARI operates multiple radio telescopes and optical telescopes for research and teaching purposes. The observatory is affiliated with the University of North Carolina system through the Pisgah Astronomical Research and Science Educational Center (PARSEC). History PARI is located at the site of the former Rosman Satellite Tracking Station, which was established by the National Aeronautics and Space Administration (NASA) in 1962. The site was part of the worldwide Spacecraft Tracking and Data Acquisition Network and an integral communications link for the manned space programs Project Gemini and Project Apollo. The facility was transferred to the National Security Agency (NSA) in 1981. Known as the Rosman Research Station, it was used as a signals intelligence gathering facility. The site was clos ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
2dishes
Dish, dishes or DISH may refer to: Culinary * Dish (food), something prepared to be eaten * Dishware, plates and bowls for eating, cutting boards, silverware Communications * Dish antenna a type of antenna * Dish Network, a satellite television provider in North America * Dish TV, a satellite television provider in India * Satellite dish, an antenna for receiving satellite signals * Stanford Dish, a U.S. Government-owned radio-telescope at Stanford University Arts, entertainment, and media * ''The Dish'' (TV series), an American television show * ''The Dish'', an Australian film * DISH (band), a Japanese band * Dish (American band), an American alternative rock band * "Dish", a 2016 single by Chancellor Other uses * Dish, Texas, a town in Denton County, Texas, United States * Diffuse idiopathic skeletal hyperostosis, a form of arthritis * Dish of a bicycle wheel See also * Disch, surname * Dyche, surname * Diš (cuneiform), a sign in cuneiform writing * Dishdish, a villa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Clemson University
Clemson University () is a public land-grant research university in Clemson, South Carolina. Founded in 1889, Clemson is the second-largest university in the student population in South Carolina. For the fall 2019 semester, the university enrolled a total of 20,195 undergraduate students and 5,627 graduate students, and the student/faculty ratio was 18:1. Clemson's 1,400-acre campus is in the foothills of the Blue Ridge Mountains. The campus now borders Lake Hartwell, which was formed by the dam completed in 1962. The university manages the nearby 17,500-acre Clemson Experimental Forest that is used for research, education, and recreation. Clemson University consists of seven colleges: Agriculture, Forestry and Life Sciences; Architecture, Arts and Humanities; The Wilbur O. and Ann Powers College of Business; Behavioral, Social and Health Sciences; Education; Engineering, Computing and Applied Sciences; and Science. '' U.S. News & World Report'' ranks Clemson University 77th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Seymchan (meteorite)
Seymchan is a pallasite meteorite found in the dry bed of the river Hekandue, a left tributary of river Yasachnaya in the Magadan district, Russia, near the settlement of Seymchan, in June 1967. History The main mass of was found during a survey in June 1967 by geologist F. A. Mednikov. The mass was a triangular-shaped thumbprinted meteorite lying among the stones of the brook bed. A second specimen of was found with a mine detector at a distance of 20 m from the first in October 1967 by I. H. Markov. The main mass was turned over to the Academy of Sciences of the USSR. During a new expedition in 2004, Dmitri Kachalin recovered about of new material. Remarkably, about 20% of the new specimens were found to contain olivine crystals, and so revealed the silicated nature of the meteorite. The pallasitic structure was not previously discovered during studies on small metal-only sections of the original mass. Composition and classification Seymchan belongs to Main Group pallasi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Toluca (meteorite)
Toluca is a shower of iron meteorites found in Jiquipilco, Mexico near Toluca. History The meteorites crashed towards the Earth more than 10,000 years earlier. For centuries, Mexican people living near the meteorites used them as a source of metal for various tools. They were seen by conquistadores about 1776. The total known mass is about 3 tonnes. Composition and classification These iron meteorites are a coarse octahedrite, chemical type IAB-sLL. The mean composition is 90.5% Fe and 8.1% Ni. They often contain large troilite inclusions. See also * Glossary of meteoritics This is a glossary of terms used in meteoritics, the science of meteorites. # * 2 Pallas – an asteroid from the asteroid belt and one of the likely parent bodies of the CR meteorites. * 4 Vesta – second-largest asteroid in the asteroid b ... References {{Meteorites Meteorites found in Mexico Toluca History of the State of Mexico Natural history of the State of Mexico ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Amethyst
Amethyst is a violet variety of quartz. The name comes from the Koine Greek αμέθυστος ''amethystos'' from α- ''a-'', "not" and μεθύσκω (Ancient Greek) / μεθώ (Modern Greek), "intoxicate", a reference to the belief that the stone protected its owner from drunkenness. Ancient Greeks wore amethyst and carved drinking vessels from it in the belief that it would prevent intoxication. Amethyst, a semiprecious stone, is often used in jewelry and is the traditional birthstone for February. Structure Amethyst is a purple variety of quartz (SiO2) and owes its violet color to irradiation, impurities of iron and in some cases other transition metals, and the presence of other trace elements, which result in complex crystal lattice substitutions.Michael O'Donoghue (2006), ''Gems'', Butterworth-Heinemann, 6th ed. The hardness of the mineral is the same as quartz, thus making it suitable for use in jewelry. Hue and tone Amethyst occurs in primary hues from a li ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Green River Formation
The Green River Formation is an Eocene geologic formation that records the sedimentation in a group of intermountain lakes in three basins along the present-day Green River in Colorado, Wyoming, and Utah. The sediments are deposited in very fine layers, a dark layer during the growing season and a light-hue inorganic layer in the dry season. Each pair of layers is called a varve and represents one year. The sediments of the Green River Formation present a continuous record of six million years. The mean thickness of a varve here is 0.18 mm, with a minimum thickness of 0.014 mm and maximum of 9.8 mm.Bradley, W. H. The varves and climate of the Green River epoch: U.S. Geol. Survey Prof. Paper 158, pp 87–110, 1929. The sedimentary layers were formed in a large area named for the Green River, a tributary of the Colorado River. The three separate basins lie around the Uinta Mountains (north, east, and south) of northeastern Utah: * an area in northwestern Colorado east ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Knightia
''Knightia'' is an extinct genus of clupeid bony fish that lived in the freshwater lakes and rivers of North America and Asia during the Eocene epoch. The genus was erected by David Starr Jordan in 1907, in honor of the late University of Wyoming professor Wilbur Clinton Knight, "an indefatigable student of the paleontology of the Rocky Mountains." It is the official state fossil of Wyoming, and the most commonly excavated fossil fish in the world. ''Knightia'' belongs to the same taxonomic family as herring and sardines, and resembled the former closely enough that both ''Knightia alta'' and ''Knightia eocaena'' were originally described as species of true herring in the genus ''Clupea''. As with modern-day clupeids, ''Knightia'' spp. likely fed on algae and diatoms, as well as insects and occasionally smaller fish. Anatomy In ''Knightia'' fish, rows of dorsal and ventral scutes run from the back of the head to the medial fins. They had heavy scales and small conical teeth ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PGM-11 Redstone
The PGM-11 Redstone was the first large American ballistic missile. A short-range ballistic missile (SRBM), it was in active service with the United States Army in West Germany from June 1958 to June 1964 as part of NATO's Cold War defense of Western Europe. It was the first US missile to carry a live nuclear warhead, in the 1958 Pacific Ocean weapons test, Hardtack Teak. The Redstone was a direct descendant of the German V-2 rocket, developed primarily by a team of German rocket engineers brought to the United States after World War II. The design used an upgraded engine from Rocketdyne that allowed the missile to carry the W39 warhead which weighed with its reentry vehicle to a range of about . Redstone's prime contractor was the Chrysler Corporation. The Redstone spawned the Redstone rocket family which holds a number of firsts in the US space program, notably launching the first US astronaut. It was retired by the Army in 1964 and replaced by the solid-fueled MGM-31 Per ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PARI Pano2
Pari or PARI may refer to: Places * Pari, Estonia, a village in Vastseliina Parish, Võru County, Estonia * Pari, Hamadan or Piruz, a village in Hamadan Province, Iran * Pari, Iran, a village in Zanjan Province, Iran * Pari, Civitella Paganico, a village in Grosseto, Tuscany, Italy * Pari, Gilgit Baltistan, a village in Skardu district, Pakistan * Pari, Raebareli, a village in Uttar Pradesh, India * Piruz, Iran, also known as Pari Film * ''Pari'' (1995 film), an Iranian production * ''Pari'' (2018 Pakistani film) * ''Pari'' (2018 Indian film), a Hindi film People * Akilan Pari (born 1989), Indian basketball player * Claudio Pari (1574-1619), Italian composer * Pari Saberi (born 1932), Iranian drama and theatre director * Vēl Pāri, an ancient Tamil king * Pari people, an ethnic group in Sudan Acronym * People's Archive of Rural India, a digital journalism platform in India * Philippine Association of the Record Industry * Pisgah Astronomical Research Institute, an astron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spy Satellite
A reconnaissance satellite or intelligence satellite (commonly, although unofficially, referred to as a spy satellite) is an Earth observation satellite or communications satellite deployed for military or intelligence applications. The first generation type (i.e., Corona and Zenit) took photographs, then ejected canisters of photographic film which would descend back down into Earth's atmosphere. Corona capsules were retrieved in mid-air as they floated down on parachutes. Later, spacecraft had digital imaging systems and downloaded the images via encrypted radio links. In the United States, most information available about reconnaissance satellites is on programs that existed up to 1972, as this information has been declassified due to its age. Some information about programs before that time is still classified information, and a small amount of information is available on subsequent missions. A few up-to-date reconnaissance satellite images have been declassified o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Western North Carolina
Western North Carolina (often abbreviated as WNC) is the region of North Carolina which includes the Appalachian Mountains; it is often known geographically as the state's Mountain Region. It contains the highest mountains in the Eastern United States, with 125 peaks rising to over 5,000 feet (1,500 meters) in elevation. Mount Mitchell at 6,684 feet (2,037 meters), is the highest peak of the Appalachian Mountains and mainland eastern North America. The population of the region, as measured by the 2010 U.S. Census, is 1,473,241, which is approximately 15% of North Carolina's total population. Located east of the Tennessee state line and west of the Piedmont, Western North Carolina contains few major urban centers. Asheville, located in the region's center, is the area's largest city and most prominent commercial hub. The Foothills region of the state is loosely defined as the area along Western North Carolina's eastern boundary; this region consists of a transitional terrain of hi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planetarium
A planetarium ( planetariums or ''planetaria'') is a theatre built primarily for presenting educational and entertaining shows about astronomy and the night sky, or for training in celestial navigation. A dominant feature of most planetariums is the large dome-shaped projection screen onto which scenes of stars, planets, and other celestial objects can be made to appear and move realistically to simulate their motion. The projection can be created in various ways, such as a star ball, slide projector, video, fulldome projector systems, and lasers. Typical systems can be set to simulate the sky at any point in time, past or present, and often to depict the night sky as it would appear from any point of latitude on Earth. Planetaria range in size from the 37 meter dome in St. Petersburg, Russia (called “Planetarium No 1”) to three-meter inflatable portable domes where attendees sit on the floor. The largest planetarium in the Western Hemisphere is the Jennifer Chalsty Plan ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
