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Tor Hagfors
Tor Hagfors (18 December 1930 – 17 January 2007) was a Norwegian scientist, radio astronomer, radar expert and a pioneer in the studies of the interactions between electromagnetic waves and plasma. In the early 1960s he was one of a handful of pioneering theorists that independently developed a theory that explained the scattering of radio waves by the free electrons in a plasma and applied the result to the ionosphere. He became founding director of the new EISCAT facilities that were then under construction in 1975, by which time he already been director at most of the other incoherent scatter radar facilities in the world. The asteroid 1985 VD1 is named 7279 Hagfors after him. Early life Tor Hagfors was born in Oslo in 1930. He studied at the Norwegian Institute of Technology (NTH) and received his doctorate degree in 1959 from the University of Oslo. Scientific work Hagfors worked at the Norwegian Defence Research Establishment from 1955 to 1963, interrupted by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tor Hagfors
Tor Hagfors (18 December 1930 – 17 January 2007) was a Norwegian scientist, radio astronomer, radar expert and a pioneer in the studies of the interactions between electromagnetic waves and plasma. In the early 1960s he was one of a handful of pioneering theorists that independently developed a theory that explained the scattering of radio waves by the free electrons in a plasma and applied the result to the ionosphere. He became founding director of the new EISCAT facilities that were then under construction in 1975, by which time he already been director at most of the other incoherent scatter radar facilities in the world. The asteroid 1985 VD1 is named 7279 Hagfors after him. Early life Tor Hagfors was born in Oslo in 1930. He studied at the Norwegian Institute of Technology (NTH) and received his doctorate degree in 1959 from the University of Oslo. Scientific work Hagfors worked at the Norwegian Defence Research Establishment from 1955 to 1963, interrupted by a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sabbatical
A sabbatical (from the Hebrew: (i.e., Sabbath); in Latin ; Greek: ) is a rest or break from work. The concept of the sabbatical is based on the Biblical practice of ''shmita'' (sabbatical year), which is related to agriculture. According to , Jews in the Land of Israel must take a year-long break from working the fields every seven years. Starting with Harvard University in 1880, many universities and other institutional employers of scientists, physicians, and academics offer the opportunity to qualify for paid sabbatical as an employee benefit, called ''sabbatical leave''. Early academic sabbatical policies were designed to aid their faculty in resting and recovering, but were also provided in order to facilitate "advancements in knowledge in vogue elsewhere...an intellectual and practical necessity" for both the professors and university education more broadly. Present day academic sabbaticals typically excuse the grantee from day to day teaching and departmental duties, t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lurigancho
Lurigancho-Chosica is a district of Lima Province, Peru, located in the valley of the Rímac River which it shares with neighboring Chaclacayo and Ate districts. It was created on January 2, 1857. Its capital is the town of Chosica. The district has a total land area of . Its administrative center is located above sea level. According to a 2002 estimate by the INEI, the district has 125,088 inhabitants and a population density of 529 persons/km². In 1999, there were 32,327 households in the district. Its capital, Chosica, is located in the extreme east of the district, near the Huarochirí county line. Lurigancho counts on a Minor Populated Center inside the urban core of Lima, which is Santa María de Huachipa which is located in the extreme west of the district and adjacent to San Juan de Lurigancho. Other notable urban areas in this zone are Jicamarca and Cajamarquilla, where one of the principal zinc refineries of the country is located. In the mountain zone in proximity to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jicamarca Radio Observatory
The Jicamarca Radio Observatory (JRO) is the equatorial anchor of the Western Hemisphere chain of Incoherent Scatter Radar (ISR) observatories extending from Lima, Peru to Søndre Strømfjord, Greenland. JRO is the premier scientific facility in the world for studying the equatorial ionosphere. The observatory is about half an hour drive inland (east) from Lima and 10 km from the Central Highway (, 520 meters ASL). The magnetic dip angle is about 1°, and varies slightly with altitude and year. The radar can accurately determine the direction of the Earth's magnetic field (B) and can be pointed perpendicular to B at altitudes throughout the ionosphere. The study of the equatorial ionosphere is rapidly becoming a mature field due, in large part, to the contributions made by JRO in radio science. JRO's main antenna is the largest of all the incoherent scatter radars in the world. The main antenna is a cross-polarized square array composed of 18,432 half-wavelength dipoles occup ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Illinois
The University of Illinois Urbana-Champaign (U of I, Illinois, University of Illinois, or UIUC) is a public land-grant research university in Illinois in the twin cities of Champaign and Urbana. It is the flagship institution of the University of Illinois system and was founded in 1867. Enrolling over 56,000 undergraduate and graduate students, the University of Illinois is one of the largest public universities by enrollment in the country. The University of Illinois Urbana-Champaign is a member of the Association of American Universities and is classified among "R1: Doctoral Universities – Very high research activity". In fiscal year 2019, research expenditures at Illinois totaled $652 million. The campus library system possesses the second-largest university library in the United States by holdings after Harvard University. The university also hosts the National Center for Supercomputing Applications and is home to the fastest supercomputer on a university campus. The u ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
UCSD
The University of California, San Diego (UC San Diego or colloquially, UCSD) is a public university, public Land-grant university, land-grant research university in San Diego, California. Established in 1960 near the pre-existing Scripps Institution of Oceanography, UC San Diego is the southernmost of the ten campuses of the University of California, and offers over 200 undergraduate and graduate degree programs, enrolling 33,096 undergraduate and 9,872 graduate students. The university occupies near the coast of the Pacific Ocean, with the main campus resting on approximately . UC San Diego is ranked among the best universities in the world by major college and university rankings. UC San Diego consists of twelve undergraduate, graduate and professional schools as well as seven undergraduate residential colleges. It received over 140,000 applications for undergraduate admissions in Fall 2021, making it the second most applied-to university in the United States. UC San Diego H ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jules Fejer
Jules Fejer ( hu, Fejer Gyula Endre; 22 January 1914 – 21 December 2002) was a Hungarian-born physicist. Fejer was born in Budapest, Austria-Hungary on 22 January 1914, son of Ernest Fejer and Stella Popper. As an engineer with South Africa's National Institute for Telecommunications Research (NITR), He published the first estimate of the life expectancy of the recently launched Sputnik in Nature. His prediction was far more accurate than those made by the Russians, British and Americans. In the late 1950s he wrote a fundamental paper on incoherent backscatter, explaining why the width of the backscattered echo was determined primarily by the ion thermal velocity rather than by the electron thermal velocity. He was one of a group of ionospheric physicists brought together by Henry G. Booker to start what became the Electrical and Computer Engineering department at the University of California, San Diego. He was elected a Fellow of the American Geophysical Union The Am ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard
Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States and one of the most prestigious and highly ranked universities in the world. The university is composed of ten academic faculties plus Harvard Radcliffe Institute. The Faculty of Arts and Sciences offers study in a wide range of undergraduate and graduate academic disciplines, and other faculties offer only graduate degrees, including professional degrees. Harvard has three main campuses: the Cambridge campus centered on Harvard Yard; an adjoining campus immediately across Charles River in the Allston neighborhood of Boston; and the medical campus in Boston's Longwood Medical Area. Harvard's endowment is valued at $50.9 billion, making it the wealthiest academic institution in the world. Endowment inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ron Woodman
Ron is a shortening of the name Ronald. Ron or RON may also refer to: Arts and media * Big Ron (''EastEnders''), a TV character * Ron (''King of Fighters''), a video game character *Ron Douglas, the protagonist in ''Lucky Stiff'' played by Joe Alasky *Ron Weasley, a character in ''Harry Potter.'' Language * Ron language, spoken in Plat State, Nigeria * Romanian language (ISO 639-3 code ron) People Mononym *Ron (singer), Rosalino Cellamare (born 1953), Italian singer Given name *Ron (given name) Surname *Dana Ron (born 1964), Israeli computer scientist and professor * Elaine Ron (1943-2010), American epidemiologist *Emri Ron (born 1936), Israeli politician *Ivo Ron (born 1967), Ecuadorian football player * Jason De Ron (born 1973), Australian musician * José Ron (born 1981), Mexican actor * Liat Ron, actress, dancer and dance instructor * * Lior Ron (born 1982), Israeli-American film and trailer composer and musician * Michael Ron (born 1932), Israeli fencer * Michael Røn ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cornell
Cornell University is a private statutory land-grant research university based in Ithaca, New York. It is a member of the Ivy League. Founded in 1865 by Ezra Cornell and Andrew Dickson White, Cornell was founded with the intention to teach and make contributions in all fields of knowledge—from the classics to the sciences, and from the theoretical to the applied. These ideals, unconventional for the time, are captured in Cornell's founding principle, a popular 1868 quotation from founder Ezra Cornell: "I would found an institution where any person can find instruction in any study." Cornell is ranked among the top global universities. The university is organized into seven undergraduate colleges and seven graduate divisions at its main Ithaca campus, with each college and division defining its specific admission standards and academic programs in near autonomy. The university also administers three satellite campuses, two in New York City and one in Education City, Qatar. ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
John Dougherty (physicist)
John Dougherty may refer to: *John Dougherty (author) (born 1964), Northern Irish author * John Dougherty (journalist), American investigative journalist * John Dougherty (Missouri politician) (1857–1905), American politician * John Dougherty (Illinois politician) (1806–1879), American politician * John Dougherty (rugby league), Australian rugby league footballer * John Dougherty (bishop) (1932–2022), American prelate of the Roman Catholic Church * John Joseph Dougherty (1907–1986), American prelate of the Roman Catholic Church *Johnny Dougherty John J. "Johnny Doc" Dougherty is a prominent labor leader in Philadelphia. As a leader within the Philadelphia organized labor scene, Dougherty is a prominent political figure who helps Democratic candidates get elected by directing donations and ..., or Johnny Doc, American labor leader and politician See also * John Doherty (other) * Jack Daugherty (other) {{hndis, Dougherty, John ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Don Farley
Don, don or DON and variants may refer to: Places *County Donegal, Ireland, Chapman code DON * Don (river), a river in European Russia * Don River (other), several other rivers with the name * Don, Benin, a town in Benin * Don, Dang, a village and hill station in Dang district, Gujarat, India * Don, Nord, a ''commune'' of the Nord ''département'' in northern France *Don, Tasmania, a small village on the Don River, located just outside Devonport, Tasmania *Don, Trentino, a commune in Trentino, Italy * Don, West Virginia, a community in the United States *Don Republic, a temporary state in 1918–1920 *Don Jail, a jail in Toronto, Canada People Role or title * Don (honorific), a Spanish, Portuguese, and Italian title, given as a mark of respect *Don, a crime boss, especially in the Mafia , ''Don Konisshi'' (コニッシー) *Don, a resident assistant at universities in Canada and the U.S. *University don, in British and Irish universities, especially at Oxford, Cambridge ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
