Claud E. Cleeton
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Claud E. Cleeton
Claud Edwin Cleeton (December 11, 1907 – April 16, 1997) was an American physicist notable for his groundbreaking work, with Neal H. Williams, on the microwave spectroscopy of ammonia. This was the groundwork that led to the eventual development of the radar. Education In 1935 he completed his PhD at the University of Michigan, under Neal H. Williams, with a thesis entitled: ''Electromagnetic-Waves of 1.1 cm Wavelength and the Absorption Spectrum of Ammonia.'' The 1934 paper by Cleeton and Williams has over 260 citations and was important in the development of microwave spectroscopy. Career After obtaining his PhD, Cleeton went to work for the Navy and during World War II he was with the Naval Research Laboratory, where he improved radar systems. After the war, he conceived and developed a space surveillance system that detected Soviet satellites. Honors For his wartime efforts, Cleeton received the President's Certificate of Merit from Harry Truman in 1946 and the Meritori ...
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Schuyler County, Missouri
Schuyler County is a County (United States), county located in the northeastern portion of the U.S. state of Missouri. As of the 2020 United States census, 2020 census, its population was 4,032, making it the fourth-least populous county in Missouri. Its county seat is Lancaster, Missouri, Lancaster. The county was organized February 14, 1845, from Adair County, Missouri, Adair County, and named for General Philip Schuyler, delegate to the Continental Congress and U.S. Senator from New York (state), New York. Schuyler County is part of the Kirksville, Missouri, Kirksville, MO Kirksville micropolitan area, Micropolitan Statistical Area. , a World War II-era cargo ship, was named in part for Schuyler County, Missouri. Geography According to the U.S. Census Bureau, the county has a total area of , of which is land and (0.3%) is water. It is the second-smallest county in Missouri by area. Schuyler County borders Iowa to the north. Adjacent counties *Appanoose County, Iowa (nor ...
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World War II
World War II or the Second World War (1 September 1939 – 2 September 1945) was a World war, global conflict between two coalitions: the Allies of World War II, Allies and the Axis powers. World War II by country, Nearly all of the world's countries participated, with many nations mobilising all resources in pursuit of total war. Tanks in World War II, Tanks and Air warfare of World War II, aircraft played major roles, enabling the strategic bombing of cities and delivery of the Atomic bombings of Hiroshima and Nagasaki, first and only nuclear weapons ever used in war. World War II is the List of wars by death toll, deadliest conflict in history, causing World War II casualties, the death of 70 to 85 million people, more than half of whom were civilians. Millions died in genocides, including the Holocaust, and by massacres, starvation, and disease. After the Allied victory, Allied-occupied Germany, Germany, Allied-occupied Austria, Austria, Occupation of Japan, Japan, a ...
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University Of Michigan Alumni
A university () is an educational institution, institution of tertiary education and research which awards academic degrees in several Discipline (academia), academic disciplines. ''University'' is derived from the Latin phrase , which roughly means "community of teachers and scholars". Universities typically offer both undergraduate education, undergraduate and postgraduate education, postgraduate programs. The first universities in Europe were established by Catholic Church, Catholic monks. The University of Bologna (), Italy, which was founded in 1088, is the first university in the sense of: *being a high degree-awarding institute. *using the word (which was coined at its foundation). *having independence from the ecclesiastic schools and issuing secular as well as non-secular degrees (with teaching conducted by both clergy and non-clergy): grammar, rhetoric, logic, theology, canon law and notarial law.Hunt Janin: "The university in medieval life, 1179–1499", McFarland, 2 ...
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1997 Deaths
This is a list of lists of deaths of notable people, organized by year. New deaths articles are added to their respective month (e.g., Deaths in ) and then linked below. 2025 2024 2023 2022 2021 2020 2019 2018 2017 2016 2015 2014 2013 2012 2011 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 Earlier years ''Deaths in years earlier than this can usually be found in the main articles of the years.'' See also * Lists of deaths by day * Deaths by year (category) {{DEFAULTSORT:deaths by year ...
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1907 Births
Events January * January 14 – 1907 Kingston earthquake: A 6.5 Mw earthquake in Kingston, Jamaica, kills between 800 and 1,000. February * February 9 – The " Mud March", the first large procession organised by The National Union of Women's Suffrage Societies ( NUWSS), takes place in London. * February 11 – The French warship ''Jean Bart'' sinks off the coast of Morocco. * February 12 – The steamship ''Larchmont'' collides with the ''Harry Hamilton'' in Long Island Sound; 183 lives are lost. * February 16 – SKF, a worldwide mechanical parts manufacturing brand (mainly, bearings and seals), is founded in Gothenburg, Sweden. * February 21 – The English mail steamship ''Berlin'' is wrecked off the Hook of Holland; 142 lives are lost. * February 24 – The Austrian Lloyd steamship ''Imperatrix'', from Trieste to Bombay, is wrecked on Cape of Crete and sinks; 137 lives are lost. March * March ** The steamship ''Congo'' collide ...
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Ammonia
Ammonia is an inorganic chemical compound of nitrogen and hydrogen with the chemical formula, formula . A Binary compounds of hydrogen, stable binary hydride and the simplest pnictogen hydride, ammonia is a colourless gas with a distinctive pungent smell. It is widely used in fertilizers, refrigerants, explosives, cleaning agents, and is a precursor for numeous chemicals. Biologically, it is a common nitrogenous waste, and it contributes significantly to the nutritional needs of terrestrial organisms by serving as a precursor to fertilisers. Around 70% of ammonia produced industrially is used to make fertilisers in various forms and composition, such as urea and diammonium phosphate. Ammonia in pure form is also applied directly into the soil. Ammonia, either directly or indirectly, is also a building block for the synthesis of many chemicals. In many countries, it is classified as an List of extremely hazardous substances, extremely hazardous substance. Ammonia is toxic, cau ...
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Trigonal Pyramidal Molecular Geometry
In chemistry, a trigonal pyramid is a molecular geometry with one atom at the apex and three atoms at the corners of a trigonal base, resembling a tetrahedron (not to be confused with the tetrahedral geometry). When all three atoms at the corners are identical, the molecule belongs to point group ''C3v''. Some molecules and ions with trigonal pyramidal geometry are the pnictogen hydrides (XH3), xenon trioxide (XeO3), the chlorate ion, , and the sulfite ion, . In organic chemistry, molecules which have a trigonal pyramidal geometry are sometimes described as sp3 hybridized. The AXE method for VSEPR theory states that the classification is AX3E1. Trigonal pyramidal geometry in ammonia The nitrogen in ammonia has 5 valence electrons and bonds with three hydrogen atoms to complete the octet. This would result in the geometry of a regular tetrahedron with each bond angle equal to arccos(−) ≈ 109.5°. However, the three hydrogen atoms are repelled by the e ...
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IEEE
The Institute of Electrical and Electronics Engineers (IEEE) is an American 501(c)(3) organization, 501(c)(3) public charity professional organization for electrical engineering, electronics engineering, and other related disciplines. The IEEE has a corporate office in New York City and an operations center in Piscataway, New Jersey. The IEEE was formed in 1963 as an amalgamation of the American Institute of Electrical Engineers and the Institute of Radio Engineers. History The IEEE traces its founding to 1884 and the American Institute of Electrical Engineers. In 1912, the rival Institute of Radio Engineers was formed. Although the AIEE was initially larger, the IRE attracted more students and was larger by the mid-1950s. The AIEE and IRE merged in 1963. The IEEE is headquartered in New York City, but most business is done at the IEEE Operations Center in Piscataway, New Jersey, opened in 1975. The Australian Section of the IEEE existed between 1972 and 1985, after which it s ...
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Harry Truman
Harry S. Truman (May 8, 1884December 26, 1972) was the 33rd president of the United States, serving from 1945 to 1953. As the 34th vice president in 1945, he assumed the presidency upon the death of Franklin D. Roosevelt that year. Subsequently, Truman implemented the Marshall Plan in the aftermath of World War II to rebuild the economy of Western Europe, and established both the Truman Doctrine and NATO to contain the expansion of Soviet communism. A member of the Democratic Party, he proposed numerous New Deal coalition liberal domestic reforms, but few were enacted by the conservative coalition that dominated the United States Congress. Truman was raised in Independence, Missouri, and during World War I fought in France as a captain in the Field Artillery. Returning home, he opened a haberdashery in Kansas City, Missouri, and was elected as a judge of Jackson County in 1922. Truman was elected to the U.S. Senate for Missouri in 1934. Between 1940 and 1944, he ga ...
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Radar
Radar is a system that uses radio waves to determine the distance ('' ranging''), direction ( azimuth and elevation angles), and radial velocity of objects relative to the site. It is a radiodetermination method used to detect and track aircraft, ships, spacecraft, guided missiles, motor vehicles, map weather formations, and terrain. The term ''RADAR'' was coined in 1940 by the United States Navy as an acronym for "radio detection and ranging". The term ''radar'' has since entered English and other languages as an anacronym, a common noun, losing all capitalization. A radar system consists of a transmitter producing electromagnetic waves in the radio or microwave domain, a transmitting antenna, a receiving antenna (often the same antenna is used for transmitting and receiving) and a receiver and processor to determine properties of the objects. Radio waves (pulsed or continuous) from the transmitter reflect off the objects and return to the receiver, giving ...
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Bellevue, Washington
Bellevue ( ) is a city in the Eastside (King County, Washington), Eastside region of King County, Washington, United States, located across Lake Washington from Seattle. It is the third-largest city in the Seattle metropolitan area, and the fifth-largest city in Washington (state), Washington. It has variously been characterized as a satellite city, a suburb, a boomburb, or an edge city. The population was 151,854 at the 2020 United States census, 2020 census. The city's name is derived from the French term ("beautiful view"). Bellevue is home to some of the world's largest technology companies. Before and after the 2008 recession, its downtown area has been undergoing rapid change with many high-rise projects being constructed. Downtown Bellevue is currently the second-largest city center in Washington state, with 1,300 businesses, 45,000 employees, and 10,200 residents. In a 2018 estimate, the city's median household income was among the top five cities in the state of Wash ...
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