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Mary Elliott Hill
Mary Elliott Hill (January 5, 1907 – February 12, 1969) was one of the earliest African-American women to become a chemist. She was known as both an organic and analytical chemist. Hill worked on the properties of ultraviolet light, developing analytic methodology, and, in collaboration with her husband Carl McClellan Hill, developing ketene synthesis which supported the development of plastics. She is believed to be one of the first African-American women to be awarded with a master's degree in chemistry. Hill was an analytical chemist, designing spectroscopic methods and developing ways to track the progress of the reactions based on solubility. Early life and education Hill was born in the segregated small town of South Mills, North Carolina, on 5 January 1907 and had two brothers. Her mother was Frances Bass and her father, Robert Elliott, was a fireman. Hill began attending Virginia State College for Negroes, now Virginia State University (VSU), in 1925, gaining her ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
South Mills, North Carolina
South Mills is an unincorporated community and census-designated place (CDP) in Camden County, North Carolina, United States. Its population was 454 as of the 2010 census. South Mills has a post office with ZIP code 27976, which opened on March 2, 1840. The community is located near U.S. Route 17, and U.S. Route 17 Business and North Carolina Highway 343 pass through the community. The community derived its name from a watermill which operated near the original town site. The William Riley Abbott House, Dismal Swamp Canal, and Morgan House are listed on the National Register of Historic Places. Demographics 2020 census As of the 2020 United States census The United States census of 2020 was the twenty-fourth decennial United States census. Census Day, the reference day used for the census, was April 1, 2020. Other than a pilot study during the 2000 census, this was the first U.S. census to of ..., there were 362 people, 181 households, and 139 families residing ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Carl McClellan Hill
Carl McClellan Hill (July 27, 1907, Norfolk, Virginia – April 4, 1995, Hampton, Virginia) was an American educator and academic administrator who served as president of Kentucky State University from 1962 to 1975, and as the 11th president of Hampton University from 1976 to 1978. Early life Carl McClellan Hill was born July 27, 1907 in Norfolk, Virginia, to William Franklin and Sarah Rowe Hill. Education Hill attended Norfolk public schools. He earned a B.Sc. degree in organic chemistry from Hampton Institute in 1931. During the 1930s, Hill taught science at the George P. Phenix Laboratory School, a high school associated with the Hampton Institute. After working briefly as an assistant professor of chemistry at Hampton Institute (1939-1940), Hill returned to the high school as principal (1940-1941). Hill received his M.Sc. degree in organic chemistry from Cornell University in Ithaca, New York in 1935. His master's thesis was on ''The action of Grignard reagents on lpha ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1907 Births
Nineteen or 19 may refer to: * 19 (number), the natural number following 18 and preceding 20 * one of the years 19 BC, AD 19, 1919, 2019 Films * ''19'' (film), a 2001 Japanese film * ''Nineteen'' (film), a 1987 science fiction film Music * 19 (band), a Japanese pop music duo Albums * ''19'' (Adele album), 2008 * ''19'', a 2003 album by Alsou * ''19'', a 2006 album by Evan Yo * ''19'', a 2018 album by MHD * ''19'', one half of the double album ''63/19'' by Kool A.D. * ''Number Nineteen'', a 1971 album by American jazz pianist Mal Waldron * ''XIX'' (EP), a 2019 EP by 1the9 Songs * "19" (song), a 1985 song by British musician Paul Hardcastle. * "Nineteen", a song by Bad4Good from the 1992 album '' Refugee'' * "Nineteen", a song by Karma to Burn from the 2001 album ''Almost Heathen''. * "Nineteen" (song), a 2007 song by American singer Billy Ray Cyrus. * "Nineteen", a song by Tegan and Sara from the 2007 album '' The Con''. * "XIX" (song), a 2014 song by Slipk ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Myron B
Myron of Eleutherae ( grc, Μύρων, ''Myrōn'' ), working c. 480–440 BC, was an Athenian sculptor from the mid-5th century BC. He was born in Eleutherae on the borders of Boeotia and Attica. According to Pliny's '' Natural History'', Ageladas of Argos was his teacher. None of his original sculptures are known to survive, but there are many of what are believed to be later copies in marble, mostly Roman. Reputation Myron worked almost exclusively in bronze and his fame rested principally upon his representations of athletes (including his iconic ''Diskobolos''), in which he made a revolution, according to commentators in Antiquity, by introducing greater boldness of pose and a more perfect rhythm, subordinating the parts to the whole. Pliny's remark that Myron's works were ''numerosior'' than those of Polycleitus and "more diligent" seem to suggest that they were considered more harmonious in proportions (''numeri'') and at the same time more convincing in realism: ''dili ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Beta Kappa Chi
Beta Kappa Chi () is a scholastic honor society that recognizes academic achievement among students in the fields of natural science and mathematics. The society was founded at Lincoln University in 1923 and was admitted to the Association of College Honor Societies in 1961. Beta Kappa Chi honor society has 67 active chapters across the United States, and a total membership of approximately 60,000.Per thnational website accessed 20 Sept 2021. See also * Association of College Honor Societies The Association of College Honor Societies (ACHS) is a predominantly American, voluntary association that serves a number of functions with respect to national collegiate and post-graduate honor societies. ACHS coordinates member organizations, faci ... References External links * ACHS Beta Kappa Chi entry {{authority control Association of College Honor Societies Honor societies Student organizations established in 1923 1923 establishments in Pennsylvania ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Alpha Kappa Alpha
Alpha Kappa Alpha Sorority, Inc. () is the first intercollegiate historically African American sorority. The sorority was founded on January 15, 1908, at the historically black Howard University in Washington, D.C., by a group of sixteen students led by Ethel Hedgeman Lyle. Forming a sorority broke barriers for African-American women in areas where they had little power or authority due to a lack of opportunities for minorities and women in the early 20th century. Alpha Kappa Alpha was incorporated on January 29, 1913. The sorority is one of the nation's largest Greek-letter organizations, having had more than 300,000 members in 1,024 chapters in the United States and several other countries. Women may join through undergraduate chapters at a college or university, or they may be invited to join by a graduate chapter after acquiring an undergraduate or advanced college degree. Alpha Kappa Alpha is part of the National Pan-Hellenic Council (NPHC). The current International Pr ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Institute Of Science
The National Institute of Science (NIS) is a non-profit professional organization with the goal of supporting science education and research at historically Black colleges and universities. The organization is one of the oldest professional groups for Black scientists, and was founded as the National Association of Science Teachers in Negro Colleges and Affiliated Institutions in 1943. It was renamed the National Institute of Science in 1944. History Foundations The initial idea for what would become the National Institute of Science began with Hubert Branch Crouch (1906–1980), a biology teacher at Kentucky State College (now Kentucky State University). In 1931, Crouch attended the third annual National Association for Research in Science Teaching meeting in 1931, and there was inspired to create a group to address various issues he saw within the science curriculums at historically Black colleges and universities (HBCUs), such as intellectual isolation between instituti ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Chemical Society
The American Chemical Society (ACS) is a scientific society based in the United States that supports scientific inquiry in the field of chemistry. Founded in 1876 at New York University, the ACS currently has more than 155,000 members at all degree levels and in all fields of chemistry, chemical engineering, and related fields. It is one of the world's largest scientific societies by membership. The ACS is a 501(c) organization, 501(c)(3) non-profit organization and holds a congressional charter under Title 36 of the United States Code. Its headquarters are located in Washington, D.C., and it has a large concentration of staff in Columbus, Ohio. The ACS is a leading source of scientific information through its peer-reviewed scientific journals, national conferences, and the Chemical Abstracts Service. Its publications division produces over 60 Scientific journal, scholarly journals including the prestigious ''Journal of the American Chemical Society'', as well as the weekly tra ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Polymerization
In polymer chemistry, polymerization (American English), or polymerisation (British English), is a process of reacting monomer, monomer molecules together in a chemical reaction to form polymer chains or three-dimensional networks. There are many forms of polymerization and different systems exist to categorize them. In chemical compounds, polymerization can occur via a variety of reaction mechanisms that vary in complexity due to the functional groups present in the reactants and their inherent steric effects. In more straightforward polymerizations, alkenes form polymers through relatively simple free-radical reaction, radical reactions; in contrast, reactions involving substitution at a carbonyl group require more complex synthesis due to the way in which reactants polymerize. Alkanes can also be polymerized, but only with the help of strong acids. As alkenes can polymerize in somewhat straightforward radical reactions, they form useful compounds such as polyethylene and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Non-aqueous
An aqueous solution is a Solution (chemistry), solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula. For example, a solution of table salt, or sodium chloride (NaCl), in water would be represented as . The word ''aqueous'' (which comes from ''aqua'') means pertaining to, related to, similar to, or solvation, dissolved in, water. As water is an excellent solvent and is also naturally abundant, it is a ubiquitous solvent in chemistry. Since water is frequently used as the solvent in experiments, the word solution refers to an aqueous solution, unless the solvent is specified. A ''non-aqueous solution'' is a solution in which the solvent is a liquid, but is not water. (See also Solvent and Inorganic nonaqueous solvent.) Characteristics Substances that are ''hydrophobic'' ('water-fearing') do not dissolve well in water, whereas those that are ''hydrophilic'' ('water-friendly') do. An example of a hydrop ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ultraviolet Spectroscopy
Ultraviolet (UV) is a form of electromagnetic radiation with wavelength from 10 nm (with a corresponding frequency around 30 PHz) to 400 nm (750 THz), shorter than that of visible light, but longer than X-rays. UV radiation is present in sunlight, and constitutes about 10% of the total electromagnetic radiation output from the Sun. It is also produced by electric arcs and specialized lights, such as mercury-vapor lamps, tanning lamps, and black lights. Although long-wavelength ultraviolet is not considered an ionizing radiation because its photons lack the energy to ionize atoms, it can cause chemical reactions and causes many substances to glow or fluoresce. Consequently, the chemical and biological effects of UV are greater than simple heating effects, and many practical applications of UV radiation derive from its interactions with organic molecules. Short-wave ultraviolet light damages DNA and sterilizes surfaces with which it comes into contact. For huma ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectroscopy
Spectroscopy is the field of study that measures and interprets the electromagnetic spectra that result from the interaction between electromagnetic radiation and matter as a function of the wavelength or frequency of the radiation. Matter waves and acoustic waves can also be considered forms of radiative energy, and recently gravitational waves have been associated with a spectral signature in the context of the Laser Interferometer Gravitational-Wave Observatory (LIGO) In simpler terms, spectroscopy is the precise study of color as generalized from visible light to all bands of the electromagnetic spectrum. Historically, spectroscopy originated as the study of the wavelength dependence of the absorption by gas phase matter of visible light dispersed by a prism. Spectroscopy, primarily in the electromagnetic spectrum, is a fundamental exploratory tool in the fields of astronomy, chemistry, materials science, and physics, allowing the composition, physical structure and e ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
