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Angus Ewan Cameron
Angus Ewan Cameron (14 October 1906 - 27 September 1981) was an American chemist known for his work on isotopic enrichment of uranium-235 for the purpose of building atomic bombs and his research on mass spectrometry. Career and Research Cameron was born in Sylvania, Pennsylvania and graduated from Oberlin College in 1928 (magna cum laude) and received his PhD from the University of Minnesota in physical chemistry in 1932. After working at the University of Rochester, he joined Kodak Research Laboratories to work on photographic processing. In 1943 he moved to what is now the Oak Ridge National Laboratory (at the time US AEC site). Much of his work was classified and not published at the time. Cameron was involved in the effort to enrich the isotope uranium-235 by electromagnetic isotope separation, where he led a division of over 300 people and provided measurements of the isotopes of various uranium materials employed in the Manhattan Project during World War II. After the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Sylvania, Pennsylvania
Sylvania is a borough in Bradford County, Pennsylvania. It is part of Northeastern Pennsylvania. The population was 216 at the 2020 census. Children residing in the borough are assigned to attend the Troy Area School District. Geography Sylvania is located at (41.805563, -76.855353). According to the U.S. Census Bureau, the borough has a total area of , all land. Demographics 2010 At the 2010 census there were 219 people, 82 households, and 61 families living in the borough. The population density was 199.1 people per square mile (77.8/km2). There were 88 housing units at an average density of 80 per square mile (31.2/km2). The racial makeup of the borough was 96.3% White, 0.5% American Indian, 0.9% Asian and 2.3% two or more races. There were 82 households, 37.8% had children under the age of 18 living with them, 56.1% were married couples living together, 9.8% had a female householder with no husband present, and 25.6% were non-families. 23.2% of households were made up of ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Time Of Flight Mass Spectrometer
Time-of-flight mass spectrometry (TOFMS) is a method of mass spectrometry in which an ion's mass-to-charge ratio is determined by a time of flight measurement. Ions are accelerated by an electric field of known strength. This acceleration results in an ion having the same kinetic energy as any other ion that has the same charge. The velocity of the ion depends on the mass-to-charge ratio (heavier ions of the same charge reach lower speeds, although ions with higher charge will also increase in velocity). The time that it subsequently takes for the ion to reach a detector at a known distance is measured. This time will depend on the velocity of the ion, and therefore is a measure of its mass-to-charge ratio. From this ratio and known experimental parameters, one can identify the ion. Theory The potential energy of a charged particle in an electric field is related to the charge of the particle and to the strength of the electric field: where ''E''p is potential energy, ''q'' ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
University Of Minnesota Alumni
A university () is an educational institution, institution of higher education, higher (or Tertiary education, tertiary) education and research which awards academic degrees in several Discipline (academia), academic disciplines. Universities typically offer both undergraduate education, undergraduate and postgraduate education, postgraduate programs. In the United States, the designation is reserved for colleges that have a graduate school. The word ''university'' is derived from the Latin ''universitas magistrorum et scholarium'', which roughly means "community of teachers and scholars". The first universities were created in Europe by Catholic Church monks. The University of Bologna (''Università di Bologna''), founded in 1088, is the first university in the sense of: *Being a high degree-awarding institute. *Having independence from the ecclesiastic schools, although conducted by both clergy and non-clergy. *Using the word ''universitas'' (which was coined at its foundation ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Oberlin College Alumni
Oberlin may refer to: ; Places in the United States * Oberlin Township, Decatur County, Kansas ** Oberlin, Kansas, a city in the township * Oberlin, Louisiana, a town * Oberlin, Ohio, a city * Oberlin, Licking County, Ohio, a ghost town * Oberlin, Pennsylvania, a census-designated place * Mount Oberlin, Glacier National Park, Montana ; Schools * Oberlin University, a private university in Machida, Tokyo, Japan * Oberlin College Oberlin College is a Private university, private Liberal arts colleges in the United States, liberal arts college and conservatory of music in Oberlin, Ohio. It is the oldest Mixed-sex education, coeducational liberal arts college in the United S ..., a liberal arts college in Oberlin, Ohio * Oberlin High School (Louisiana), Oberlin, Louisiana, United States * Oberlin High School (Ohio), Oberlin, Ohio, United States * Oberlin High School, Jamaica ; People * Oberlin (surname) * Oberlin Smith (1840–1926), American engineer {{disambig, geo, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Squash (sport)
Squash is a racket-and- ball sport played by two or four players in a four-walled court with a small, hollow, rubber ball. The players alternate in striking the ball with their rackets onto the playable surfaces of the four walls of the court. The objective of the game is to hit the ball in such a way that the opponent is not able to play a valid return. There are about 20 million people who play squash regularly world-wide in over 185 countries. The governing body of Squash, the World Squash Federation (WSF), is recognized by the International Olympic Committee (IOC), but the sport is not part of the Olympic Games, despite a number of applications. Supporters continue to lobby for its incorporation in a future Olympic program. The Professional Squash Association (PSA) organizes the pro tour. History Squash has its origins in the older game of rackets which was played in London's prisons in the 19th century. Later, around 1830, boys at Harrow School noticed that a punctured b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carbon-12
Carbon-12 (12C) is the most abundant of the two stable isotopes of carbon (carbon-13 being the other), amounting to 98.93% of element carbon on Earth; its abundance is due to the triple-alpha process by which it is created in stars. Carbon-12 is of particular importance in its use as the standard from which atomic masses of all nuclides are measured, thus, its atomic mass is exactly 12 daltons by definition. Carbon-12 is composed of 6 protons, 6 neutrons, and 6 electrons. History Before 1959, both the IUPAP and IUPAC used oxygen to define the mole; the chemists defining the mole as the number of atoms of oxygen which had mass 16 g, the physicists using a similar definition but with the oxygen-16 isotope only. The two organizations agreed in 1959/60 to define the mole as follows. ''Mole is the amount of substance of a system which contains as many elementary entities as there are atoms in 12 gram of carbon 12; its symbol is "mol".'' This was adopted by the CIPM (Inte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
IUPAC
The International Union of Pure and Applied Chemistry (IUPAC ) is an international federation of National Adhering Organizations working for the advancement of the chemical sciences, especially by developing nomenclature and terminology. It is a member of the International Science Council (ISC). IUPAC is registered in Zürich, Switzerland, and the administrative office, known as the "IUPAC Secretariat", is in Research Triangle Park, North Carolina, United States. This administrative office is headed by IUPAC's executive director, currently Lynn Soby. IUPAC was established in 1919 as the successor of the International Congress of Applied Chemistry for the advancement of chemistry. Its members, the National Adhering Organizations, can be national chemistry societies, national academies of sciences, or other bodies representing chemists. There are fifty-four National Adhering Organizations and three Associate National Adhering Organizations. IUPAC's Inter-divisional Committee on ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mars
Mars is the fourth planet from the Sun and the second-smallest planet in the Solar System, only being larger than Mercury (planet), Mercury. In the English language, Mars is named for the Mars (mythology), Roman god of war. Mars is a terrestrial planet with a thin atmosphere (less than 1% that of Earth's), and has a crust primarily composed of elements similar to Earth's crust, as well as a core made of iron and nickel. Mars has surface features such as impact craters, valleys, dunes and polar ice caps. It has two small and irregularly shaped moons, Phobos (moon), Phobos and Deimos (moon), Deimos. Some of the most notable surface features on Mars include Olympus Mons, the largest volcano and List of tallest mountains in the Solar System, highest known mountain in the Solar System and Valles Marineris, one of the largest canyons in the Solar System. The North Polar Basin (Mars), Borealis basin in the Northern Hemisphere covers approximately 40% of the planet and may be a la ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Viking Mission
The ''Viking'' program consisted of a pair of identical American space probes, ''Viking 1'' and ''Viking 2'', which landed on Mars in 1976. Each spacecraft was composed of two main parts: an orbiter designed to photograph the surface of Mars from orbit, and a lander designed to study the planet from the surface. The orbiters also served as communication relays for the landers once they touched down. The Viking program grew from NASA's earlier, even more ambitious, Voyager Mars program, which was not related to the successful Voyager deep space probes of the late 1970s. ''Viking 1'' was launched on August 20, 1975, and the second craft, ''Viking 2'', was launched on September 9, 1975, both riding atop Titan IIIE rockets with Centaur upper stages. ''Viking 1'' entered Mars orbit on June 19, 1976, with ''Viking 2'' following on August 7. After orbiting Mars for more than a month and returning images used for landing site selection, the orbiters and landers detached; the lande ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Gas Chromatography–mass Spectrometry
Gas chromatography–mass spectrometry (GC-MS) is an analytical method that combines the features of gas-chromatography and mass spectrometry to identify different substances within a test sample. Applications of GC-MS include drug detection, fire investigation, environmental analysis, explosives investigation, and identification of unknown samples, including that of material samples obtained from planet Mars during probe missions as early as the 1970s. GC-MS can also be used in airport security to detect substances in luggage or on human beings. Additionally, it can identify trace elements in materials that were previously thought to have disintegrated beyond identification. Like liquid chromatography–mass spectrometry, it allows analysis and detection even of tiny amounts of a substance. GC-MS has been regarded as a "gold standard" for forensic substance identification because it is used to perform a 100% specific test, which positively identifies the presence of a particular ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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