|
Submillimetre Common-User Bolometer Array
Two instruments known as the Submillimetre Common-User Bolometer Array, or SCUBA, have been used for detecting submillimetre radiation on the James Clerk Maxwell Telescope in Hawaii. SCUBA-1 The older continuum single pixel UKT14 bolometer receiver was replaced in the 1990s by the Submillimeter Common-User Bolometer Array (SCUBA). The SCUBA project was green-lighted in 1987 by the JCMT board and was in development for nearly a decade before it saw first light on the telescope. While it was not the first bolometer array it was "unique in combining an unparallel sensitivity with an extensive wavelength range and field-of-view". SCUBA operated simultaneously at wavelengths of 450 and 850 micron (with 91 and 37 pixels, respectively), and was sensitive to the thermal emission from interstellar dust. SCUBA is ranked second only to the Hubble Space Telescope in terms of publication of high-impact astronomical research. SCUBA was retired from service in 2005, and it is now in the Nati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Submillimetre Radiation
Terahertz radiation – also known as submillimeter radiation, terahertz waves, tremendously high frequency (THF), T-rays, T-waves, T-light, T-lux or THz – consists of electromagnetic waves within the ITU-designated band of frequencies from 0.3 to 3 terahertz (THz), although the upper boundary is somewhat arbitrary and is considered by some sources as 30 THz. One terahertz is 1012 Hz or 1000 GHz. Wavelengths of radiation in the terahertz band correspondingly range from 1 mm to 0.1 mm = 100 µm. Because terahertz radiation begins at a wavelength of around 1 millimeter and proceeds into shorter wavelengths, it is sometimes known as the ''submillimeter band'', and its radiation as ''submillimeter waves'', especially in astronomy. This band of electromagnetic radiation lies within the transition region between microwave and far infrared, and can be regarded as either. Terahertz radiation is strongly absorbed by the gases of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Netherlands
) , anthem = ( en, "William of Nassau") , image_map = , map_caption = , subdivision_type = Sovereign state , subdivision_name = Kingdom of the Netherlands , established_title = Before independence , established_date = Spanish Netherlands , established_title2 = Act of Abjuration , established_date2 = 26 July 1581 , established_title3 = Peace of Münster , established_date3 = 30 January 1648 , established_title4 = Kingdom established , established_date4 = 16 March 1815 , established_title5 = Liberation Day (Netherlands), Liberation Day , established_date5 = 5 May 1945 , established_title6 = Charter for the Kingdom of the Netherlands, Kingdom Charter , established_date6 = 15 December 1954 , established_title7 = Dissolution of the Netherlands Antilles, Caribbean reorganisation , established_date7 = 10 October 2010 , official_languages = Dutch language, Dutch , languages_type = Regional languages , languages_sub = yes , languages = , languages2_type = Reco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Joint Astronomy Centre
The Joint Astronomy Centre (JAC) was a management organisation based in Hilo, Hawaii, which from c.1980-2015 operated two large telescopes at Mauna Kea Observatory on behalf of an international consortium from the United Kingdom, Canada and the Netherlands, and provided support for other telescopes and public outreach activities. The JAC also maintained the Starlink Project between 2006 and 2015. Following withdrawal of funding by the partner nations, on March 1, 2015, the Joint Astronomy Centre closed and the facility was handed over to the East Asian Observatory which now runs the James Clerk Maxwell Telescope. The major telescopes formerly operated by the JAC were: # The United Kingdom Infrared Telescope (UKIRT) - 3.8m diameter. # The James Clerk Maxwell Telescope - 15m diameter submillimeter telescope See also * List of astronomical observatories This is a list of astronomical observatories ordered by name, along with initial dates of operation (where an accurate date ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Douglas Scott (astronomer) , American choreographer
{{hndis, Scott, Douglas ...
Douglas Scott may refer to: * Douglas Scott (designer) (1913–1990), designer of the London Routemaster double-decker bus * Douglas Scott (politician) (1920–2012), Australian politician * Douglas Scott (writer) (born 1926), writer of thrillers * Doug Scott (1941–2020), British mountaineer * Doug Scott (Canadian football) (born 1955), CFL player * Douglas P. Scott (born 1960), mayor of Rockford, Illinois, United States * Douglas D. Scott, American archaeologist * George Douglas Scott or Doug Scott, chairman of TEDCO * Douglas Scott (choreographer) Douglas Scott is an American artistic director, choreographer and dancer. Scott has received numerous awards for his work and is the founder and Artistic Director of Full Radius Dance. Scott founded Dance Force, a traditional modern dance company, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Open University
The Open University (OU) is a British public research university and the largest university in the United Kingdom by number of students. The majority of the OU's undergraduate students are based in the United Kingdom and principally study off-campus; many of its courses (both undergraduate and postgraduate) can also be studied anywhere in the world. There are also a number of full-time postgraduate research students based on the 48-hectare university campus in Milton Keynes, where they use the OU facilities for research, as well as more than 1,000 members of academic and research staff and over 2,500 administrative, operational and support staff. The OU was established in 1969 and was initially based at Alexandra Palace, north London, using the television studios and editing facilities which had been vacated by the BBC. The first students enrolled in January 1971. The university administration is now based at Walton Hall, Milton Keynes, in Buckinghamshire, but has administratio ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Hertfordshire
The University of Hertfordshire (UH) is a public university in Hertfordshire, United Kingdom. The university is based largely in Hatfield, Hertfordshire. Its antecedent institution, Hatfield Technical College, was founded in 1948 and was identified as one of 25 Colleges of Technology in the United Kingdom in 1959. In 1992, Hatfield Polytechnic was granted university status by the British government and subsequently renamed University of Hertfordshire. It is one of the post-1992 universities. Hertfordshire is mainly based at two campuses - College Lane and de Havilland. As of 2021, it has over 25,130 students, including more than 5,200 international students that together represent 100 countries. The university is one of Hertfordshire's largest employers with over 2,700 staff, 812 of whom are academic members of staff. It has a turnover of more than £235 million. The university has 9 schools: Hertfordshire Business School, Computer Science, Creative Arts, Education, Health and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stephen Serjeant
Stephen or Steven is a common English first name. It is particularly significant to Christians, as it belonged to Saint Stephen ( grc-gre, Στέφανος ), an early disciple and deacon who, according to the Book of Acts, was stoned to death; he is widely regarded as the first martyr (or " protomartyr") of the Christian Church. In English, Stephen is most commonly pronounced as ' (). The name, in both the forms Stephen and Steven, is often shortened to Steve or Stevie. The spelling as Stephen can also be pronounced which is from the Greek original version, Stephanos. In English, the female version of the name is Stephanie. Many surnames are derived from the first name, including Stephens, Stevens, Stephenson, and Stevenson, all of which mean "Stephen's (son)". In modern times the name has sometimes been given with intentionally non-standard spelling, such as Stevan or Stevon. A common variant of the name used in English is Stephan ; related names that have found some curr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Microwave Background
In Big Bang cosmology the cosmic microwave background (CMB, CMBR) is electromagnetic radiation that is a remnant from an early stage of the universe, also known as "relic radiation". The CMB is faint cosmic background radiation filling all space. It is an important source of data on the early universe because it is the oldest electromagnetic radiation in the universe, dating to the epoch of recombination when the first atoms were formed. With a traditional optical telescope, the space between stars and galaxies (the background) is completely dark (see: Olbers' paradox). However, a sufficiently sensitive radio telescope shows a faint background brightness, or glow, almost uniform, that is not associated with any star, galaxy, or other object. This glow is strongest in the microwave region of the radio spectrum. The accidental discovery of the CMB in 1965 by American radio astronomers Arno Penzias and Robert Wilson was the culmination of work initiated in the 1940s, and earned the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cosmic Background Explorer
The Cosmic Background Explorer (COBE ), also referred to as Explorer 66, was a NASA satellite dedicated to cosmology, which operated from 1989 to 1993. Its goals were to investigate the cosmic microwave background radiation (CMB or CMBR) of the universe and provide measurements that would help shape our understanding of the cosmos. COBE's measurements provided two key pieces of evidence that supported the Big Bang theory of the universe: that the CMB has a near-perfect black-body spectrum, and that it has very faint anisotropies. Two of COBE's principal investigators, George F. Smoot and John C. Mather, received the Nobel Prize in Physics in 2006 for their work on the project. According to the Nobel Prize committee, "the COBE project can also be regarded as the starting point for cosmology as a precision science". COBE was the second cosmic microwave background satellite, following RELIKT-1, and was followed by two more advanced spacecraft: the Wilkinson Microwave Anisotropy ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arcseconds
A minute of arc, arcminute (arcmin), arc minute, or minute arc, denoted by the symbol , is a unit of angular measurement equal to of one degree. Since one degree is of a turn (or complete rotation), one minute of arc is of a turn. The nautical mile (nmi) was originally defined as the arc length of a minute of latitude on a spherical Earth, so the actual Earth circumference is very near . A minute of arc is of a radian. A second of arc, arcsecond (arcsec), or arc second, denoted by the symbol , is of an arcminute, of a degree, of a turn, and (about ) of a radian. These units originated in Babylonian astronomy as sexagesimal subdivisions of the degree; they are used in fields that involve very small angles, such as astronomy, optometry, ophthalmology, optics, navigation, land surveying, and marksmanship. To express even smaller angles, standard SI prefixes can be employed; the milliarcsecond (mas) and microarcsecond (μas), for instance, are commonly used in astron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Boulder Daily Camera
The ''Daily Camera'' is a newspaper in Boulder, Colorado, United States. It is owned by Prairie Mountain Publishing, a division of Digital First Media. History Frederick P. Johnson and Bert Bell founded the weekly ''Boulder Camera'' in 1890, and it became a daily in 1891. Ownership has changed over the years. The paper has been owned by Ridder (1969–1974), Knight Ridder (1974–1997), Scripps (1997–2009) and MediaNews Group (2009–present). In 2013 MediaNews Group and Digital First Media MNG Enterprises, Inc., doing business as Digital First Media and MediaNews Group, is a Denver, Colorado-based newspaper publisher owned by Alden Global Capital. The company has been growing its portfolio and as of May 2021, owns over 100 newspa ... merged under the Digital First Media name. The official name of this newspaper at various times has been the ''Boulder Camera'', the ''Boulder Daily Camera'', the ''Daily Camera'', the ''Camera'', and most recently the ''Daily Camera'' once ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
