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Xinjiang Astronomical Observatory
Xinjiang Astronomical Observatory (XAO; ) of the Chinese Academy of Sciences was known as Ürümqi Astronomical Observatory before it was renamed in January 2011. The current research at XAO spans many fields of astronomy. It consists of radio astronomy, optical astronomy and applications of astronomy, especially pulsars, star formation and evolution, galaxies and cosmology, high energy astrophysics, microwave receiver, digital technology, GPS, and so on. The Radio Astrophysics Laboratory of XAO is a member of the radio astronomy key laboratories in the Chinese Academy of Sciences, and has also been awarded the status of Key Laboratory of Xinjiang Uygur Autonomous Region. XAO operates the Nanshan site, Kashgar site, Qitai site and other two independent ground stations. Facilities The observatory's facilities include the Nanshan Radio Telescope (see List of radio telescopes#Asia), located in Gangou Township, Ürümqi County (). The 25 m, telescope site in Nanshan of XAO is one o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Chinese Academy Of Sciences
The Chinese Academy of Sciences (CAS); ), known by Academia Sinica in English until the 1980s, is the national academy of the People's Republic of China for natural sciences. It has historical origins in the Academia Sinica during the Republican era and was formerly also known by that name. Collectively known as the "Two Academies (两院)" along with the Chinese Academy of Engineering, it functions as the national scientific think tank and academic governing body, providing advisory and appraisal services on issues stemming from the national economy, social development, and science and technology progress. It is headquartered in Xicheng District, Beijing, with branch institutes all over mainland China. It has also created hundreds of commercial enterprises, Lenovo being one of the most famous. CAS is the world's largest research organization. It had 60,000 researchers in 2018 and 114 institutes in 2016, and has been consistently ranked among the top research organizations ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Radio Telescopes
This is a list of radio telescopes – over one hundred – that are or have been used for radio astronomy. The list includes both single dishes and interferometric arrays. The list is sorted by region, then by name; unnamed telescopes are in reverse size order at the end of the list. The first radio telescope was invented in 1932, when Karl Jansky at Bell Telephone Laboratories observed radiation coming from the Milky Way. Africa Antarctica Asia Australia Europe North America South America Arctic Ocean Atlantic Ocean Indian Ocean Pacific Ocean Space-based Under construction or planned construction Proposed telescopes Gallery of big dishes File:FastTelescope*8sep2015.jpg, alt=Five hundred meter Aperture Spherical Telescope under construction, The 500 meter Five hundred meter Aperture Spherical Telescope (FAST), under construction, China (2016) File:GBT.png, alt=Green Bank Telescope, The 100 meter Green Bank Telescope, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ürümqi County
Ürümqi County is a county of Xinjiang Uyghur Autonomous Region, Northwest China, it is under the administration of the prefecture-level city of Ürümqi, the capital of Xinjiang. It contains an area of 4,601 km² and according to the 2002 census has a population of 80,000. According to Xingjian geographic graduate school of Chinese Section College, the geographical midpoint of Asia The location of the geographical centre of Asia (russian: Центр Азии; tyv, Азияның Төвү; ) depends on the definition of the borders of Asia, mainly whether remote islands are included to define the extreme points of Asia, and ... is located within the county. Urumqi Glacier No.1, the glacier closest to an urban area in the world is also in the county. References External links * http://www.wlmqx.gov.cn/ - Ürümqi County official website County-level divisions of Xinjiang Ürümqi {{Xinjiang-geo-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Very-long-baseline Interferometry
Very-long-baseline interferometry (VLBI) is a type of astronomical interferometer, astronomical interferometry used in radio astronomy. In VLBI a signal from an astronomical radio source, such as a quasar, is collected at multiple radio telescopes on Earth or in space. The distance between the radio telescopes is then calculated using the time difference between the arrivals of the radio signal at different telescopes. This allows observations of an object that are made simultaneously by many radio telescopes to be combined, emulating a telescope with a size equal to the maximum separation between the telescopes. Data received at each antenna in the array include arrival times from a local atomic clock, such as a hydrogen maser. At a later time, the data are correlated with data from other antennas that recorded the same radio signal, to produce the resulting image. The resolution achievable using interferometry is proportional to the observing frequency. The VLBI technique e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qitai Radio Telescope
The Xinjiang Qitai 110m Radio Telescope (QTT) is a planned radio telescope to be built in Qitai County in Xinjiang, China. Upon completion, which is scheduled for 2023, it will be the world's largest fully steerable single-dish radio telescope. It is intended to operate at 300 MHz to 117 GHz. The construction of the antenna project is under the leadership of the Xinjiang Astronomical Observatory of the Chinese Academy of Sciences. The fully steerable dish of the QTT will allow it to observe 75% of the stars in the sky at any given time. The QTT and the Five-hundred-meter Aperture Spherical Telescope (FAST), also located in China, can both observe frequencies in the " water hole" that has traditionally been favored by scientists engaged in the Search for Extraterrestrial Intelligence (SETI), meaning that each observatory could provide follow-up observations of putative signals from extraterrestrials detected in this quiet part of the radio spectrum at the other observ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Qitai County
Qitai County () as the official romanized name, also transliterated from Uyghur as Guqung County or Gucheng County (; ), is a county in the Xinjiang Uyghur Autonomous Region of China under the administration of the Changji Hui Autonomous Prefecture. It covers an area of and had a population of 230,000. Qitai County's county seat is in Qitai Town. Gucheng Township is nearby. History Located on one of the main routes of the Silk Road, the old Gucheng (often referred in the European writing of the past as "Ku Ch'eng-tze", Kucheng, Kuchengtze, etc., using Wade-Giles or Postal Romanization systems), was the western terminal for one of the caravan routes across the Gobi Desert. Owen Lattimore in ''The Desert Road to Turkestan'' leaves an account of his travel along this route in 1926-27. "Under the special circumstances of the caravan trade, camel traffic usually overshoots Hami the most easterly point on the arterial cart roads of Chinese Turkestan” going on all the way to K ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
List Of Astronomical Observatories
This is a list of astronomical observatories ordered by name, along with initial dates of operation (where an accurate date is available) and location. The list also includes a final year of operation for many observatories that are no longer in operation. While other sciences, such as volcanology and meteorology, also use facilities called observatories for research and observations, this list is limited to observatories that are used to observe celestial objects. Astronomical observatories are mainly divided into four categories: space-based, airborne, ground-based, and underground-based. Many modern telescopes and observatories are located in space to observe astronomical objects in wavelengths of the electromagnetic spectrum that cannot penetrate the Earth's atmosphere (such as ultraviolet radiation, X-rays, and gamma rays) and are thus impossible to observe using ground-based telescopes. Being above the atmosphere, these space observatories can also avoid the effects of atmo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Astronomical Observatories In China
Astronomy () is a natural science that studies celestial objects and phenomena. It uses mathematics, physics, and chemistry in order to explain their origin and evolution. Objects of interest include planets, moons, stars, nebulae, galaxies, and comets. Relevant phenomena include supernova explosions, gamma ray bursts, quasars, blazars, pulsars, and cosmic microwave background radiation. More generally, astronomy studies everything that originates beyond Earth's atmosphere. Cosmology is a branch of astronomy that studies the universe as a whole. Astronomy is one of the oldest natural sciences. The early civilizations in recorded history made methodical observations of the night sky. These include the Babylonians, Greeks, Indians, Egyptians, Chinese, Maya, and many ancient indigenous peoples of the Americas. In the past, astronomy included disciplines as diverse as astrometry, celestial navigation, observational astronomy, and the making of calendars. Nowadays, professional ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Buildings And Structures In Ürümqi
A building, or edifice, is an enclosed structure with a roof and walls standing more or less permanently in one place, such as a house or factory (although there's also portable buildings). Buildings come in a variety of sizes, shapes, and functions, and have been adapted throughout history for a wide number of factors, from building materials available, to weather conditions, land prices, ground conditions, specific uses, prestige, and aesthetic reasons. To better understand the term ''building'' compare the list of nonbuilding structures. Buildings serve several societal needs – primarily as shelter from weather, security, living space, privacy, to store belongings, and to comfortably live and work. A building as a shelter represents a physical division of the human habitat (a place of comfort and safety) and the ''outside'' (a place that at times may be harsh and harmful). Ever since the first cave paintings, buildings have also become objects or canvasses of much artis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Research Institutes Of The Chinese Academy Of Sciences
Research is " creative and systematic work undertaken to increase the stock of knowledge". It involves the collection, organization and analysis of evidence to increase understanding of a topic, characterized by a particular attentiveness to controlling sources of bias and error. These activities are characterized by accounting and controlling for biases. A research project may be an expansion on past work in the field. To test the validity of instruments, procedures, or experiments, research may replicate elements of prior projects or the project as a whole. The primary purposes of basic research (as opposed to applied research) are documentation, discovery, interpretation, and the research and development (R&D) of methods and systems for the advancement of human knowledge. Approaches to research depend on epistemologies, which vary considerably both within and between humanities and sciences. There are several forms of research: scientific, humanities, artistic, econom ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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