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Elmer Imes
Elmer Samuel Imes (October 12, 1883 – September 11, 1941) was an internationally renowned American physicist who made important contributions in quantum, demonstrating for the first time that Quantum Theory could be applied to the rotational energy states of molecules, as well as the vibration and electronic levels, Imes' work provided an early verification of Quantum Theory, and his spectroscopy instrumentation inventions, which include one of the earliest applications of high resolution infrared spectroscopy led to development of the field of study of molecular structure through infrared spectroscopy; he was also the second African American to earn a Ph.D. in physics and the first in the 20th century. He was among the first known African-American scientists to make important contributions to modern physics, others' prior work unrecorded or uncredited. While working in industry, he gained four patents for instruments to be used for measuring magnetic and electric properties. As a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Memphis, Tennessee
Memphis is a city in the U.S. state of Tennessee. It is the seat of Shelby County in the southwest part of the state; it is situated along the Mississippi River. With a population of 633,104 at the 2020 U.S. census, Memphis is the second-most populous city in Tennessee, after Nashville. Memphis is the fifth-most populous city in the Southeast, the nation's 28th-largest overall, as well as the largest city bordering the Mississippi River. The Memphis metropolitan area includes West Tennessee and the greater Mid-South region, which includes portions of neighboring Arkansas, Mississippi and the Missouri Bootheel. One of the more historic and culturally significant cities of the Southern United States, Memphis has a wide variety of landscapes and distinct neighborhoods. The first European explorer to visit the area of present-day Memphis was Spanish conquistador Hernando de Soto in 1541. The high Chickasaw Bluffs protecting the location from the waters of the Mississipp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Normal, Alabama
Normal, Alabama is the home of Alabama Agricultural and Mechanical University (AAMU), the largest HBCU in Alabama. The university is situated in Huntsville, Alabama's northern city limits in Madison County. Normal was established in 1890, when AAMU was then known as State Normal and Industrial School of Huntsville. It was designated a land grant college of Alabama. At that time student enrollment was 300 with 11 teachers. That same year, a United States Post Office A post office is a public facility and a retailer that provides mail services, such as accepting letters and parcels, providing post office boxes, and selling postage stamps, packaging, and stationery. Post offices may offer additional serv ... was established there. Normal's ZIP Code is 35762. Students were called "Normalites". References AAMU Public Relations Office Geography of Madison County, Alabama Geography of Huntsville, Alabama Populated places established in 1890 1890 establishments in Alabama< ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harlem
Harlem is a neighborhood in Upper Manhattan, New York City. It is bounded roughly by the Hudson River on the west; the Harlem River and 155th Street (Manhattan), 155th Street on the north; Fifth Avenue on the east; and 110th Street (Manhattan), Central Park North on the south. The greater Harlem area encompasses several other neighborhoods and extends west and north to 155th Street, east to the East River, and south to Martin Luther King, Jr., Boulevard (Manhattan), Martin Luther King Jr. Boulevard, Central Park, and 96th Street (Manhattan), East 96th Street. Originally a Netherlands, Dutch village, formally organized in 1658, it is named after the city of Haarlem in the Netherlands. Harlem's history has been defined by a series of economic boom-and-bust cycles, with significant population shifts accompanying each cycle. Harlem was predominantly occupied by Jewish American, Jewish and Italian American, Italian Americans in the 19th century, but African-American residents began to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Jersey City, New Jersey
Jersey City is the second-most populous city in the U.S. state of New Jersey, after Newark.The Counties and Most Populous Cities and Townships in 2010 in New Jersey: 2000 and 2010 , . Accessed November 7, 2011. It is the of and the county's largest city. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harlem Renaissance
The Harlem Renaissance was an intellectual and cultural revival of African American music, dance, art, fashion, literature, theater, politics and scholarship centered in Harlem, Manhattan, New York City, spanning the 1920s and 1930s. At the time, it was known as the "New Negro Movement", named after ''The New Negro'', a 1925 anthology edited by Alain Locke. The movement also included the new African American cultural expressions across the urban areas in the Northeast and Midwest United States affected by a renewed militancy in the general struggle for civil rights, combined with the Great Migration of African American workers fleeing the racist conditions of the Jim Crow Deep South, as Harlem was the final destination of the largest number of those who migrated north. Though it was centered in the Harlem neighborhood, many francophone black writers from African and Caribbean colonies who lived in Paris were also influenced by the movement, which spanned from about 1918 until ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nella Larsen
Nellallitea "Nella" Larsen (born Nellie Walker; April 13, 1891 – March 30, 1964) was an American novelist. Working as a nurse and a librarian, she published two novels, ''Quicksand'' (1928) and '' Passing'' (1929), and a few short stories. Though her literary output was scant, she earned recognition by her contemporaries. A revival of interest in her writing has occurred since the late 20th century, when issues of racial and sexual identity have been studied. Her works have been the subjects of numerous academic studies, and she is now widely lauded as "not only the premier novelist of the Harlem Renaissance, but also an important figure in American modernism."Bone, Martyn (2011), "Nella Larsen", in ''The Encyclopedia of Twentieth-Century Fiction'', Wiley-Blackwell, pp. 658–659. Early life Nella Larsen was born Nellie Walker, in a poor district of south Chicago known as the Levee, on April 13, 1891. Her mother was Pederline Marie Hansen, a Danish immigrant, born 1868 in Br ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Yale University
Yale University is a private research university in New Haven, Connecticut. Established in 1701 as the Collegiate School, it is the third-oldest institution of higher education in the United States and among the most prestigious in the world. It is a member of the Ivy League. Chartered by the Connecticut Colony, the Collegiate School was established in 1701 by clergy to educate Congregational ministers before moving to New Haven in 1716. Originally restricted to theology and sacred languages, the curriculum began to incorporate humanities and sciences by the time of the American Revolution. In the 19th century, the college expanded into graduate and professional instruction, awarding the first PhD in the United States in 1861 and organizing as a university in 1887. Yale's faculty and student populations grew after 1890 with rapid expansion of the physical campus and scientific research. Yale is organized into fourteen constituent schools: the original undergraduate col ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Edward Bouchet
Edward Alexander Bouchet (September 15, 1852 – October 28, 1918) was an American physicist and educator and was the first African American to earn a Ph.D. from any American university, completing his dissertation in physics at Yale University, Yale in 1876. On the basis of his academic record he was elected to the Phi Beta Kappa Society. In 1874, he became one of the first African Americans to graduate from Yale College. Although Bouchet was elected to Phi Beta Kappa along with other members of the Yale class of 1874, the official induction did not take place until 1884, when the Yale chapter was reorganized after thirteen years of inactivity. Because of the circumstances, Bouchet was not the first African American elected to Phi Beta Kappa, as many historical accounts state; that honor belongs to George Washington Henderson (University of Vermont). Bouchet was also among the first 20 Americans (of any race) to receive a Ph.D. in physics and was the sixth to earn a Ph.D. in phys ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Diatomic Molecule
Diatomic molecules () are molecules composed of only two atoms, of the same or different chemical elements. If a diatomic molecule consists of two atoms of the same element, such as hydrogen () or oxygen (), then it is said to be homonuclear. Otherwise, if a diatomic molecule consists of two different atoms, such as carbon monoxide () or nitric oxide (), the molecule is said to be heteronuclear. The bond in a homonuclear diatomic molecule is non-polar. The only chemical elements that form stable homonuclear diatomic molecules at standard temperature and pressure (STP) (or typical laboratory conditions of 1 bar and 25 °C) are the gases hydrogen (), nitrogen (), oxygen (), fluorine (), and chlorine (). The noble gases (helium, neon, argon, krypton, xenon, and radon) are also gases at STP, but they are monatomic. The homonuclear diatomic gases and noble gases together are called "elemental gases" or "molecular gases", to distinguish them from other gases that are chemical c ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Spectrum
A spectrum (plural ''spectra'' or ''spectrums'') is a condition that is not limited to a specific set of values but can vary, without gaps, across a continuum. The word was first used scientifically in optics to describe the rainbow of colors in visible light after passing through a prism. As scientific understanding of light advanced, it came to apply to the entire electromagnetic spectrum. It thereby became a mapping of a range of magnitudes (wavelengths) to a range of qualities, which are the perceived "colors of the rainbow" and other properties which correspond to wavelengths that lie outside of the visible light spectrum. Spectrum has since been applied by analogy to topics outside optics. Thus, one might talk about the " spectrum of political opinion", or the "spectrum of activity" of a drug, or the "autism spectrum". In these uses, values within a spectrum may not be associated with precisely quantifiable numbers or definitions. Such uses imply a broad range of condition ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Science
Science is a systematic endeavor that builds and organizes knowledge in the form of testable explanations and predictions about the universe. Science may be as old as the human species, and some of the earliest archeological evidence for scientific reasoning is tens of thousands of years old. The earliest written records in the history of science come from Ancient Egypt and Mesopotamia in around 3000 to 1200 BCE. Their contributions to mathematics, astronomy, and medicine entered and shaped Greek natural philosophy of classical antiquity, whereby formal attempts were made to provide explanations of events in the physical world based on natural causes. After the fall of the Western Roman Empire, knowledge of Greek conceptions of the world deteriorated in Western Europe during the early centuries (400 to 1000 CE) of the Middle Ages, but was preserved in the Muslim world during the Islamic Golden Age and later by the efforts of Byzantine Greek scholars who brought Greek ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mobile, Alabama
Mobile ( , ) is a city and the county seat of Mobile County, Alabama, United States. The population within the city limits was 187,041 at the 2020 United States census, 2020 census, down from 195,111 at the 2010 United States census, 2010 census. It is the fourth-most-populous city in Alabama, after Huntsville, Alabama, Huntsville, Birmingham, Alabama, Birmingham, and Montgomery, Alabama, Montgomery. Alabama's only saltwater port, Mobile is located on the Mobile River at the head of Mobile Bay on the north-central Gulf Coast. The Port of Mobile has always played a key role in the economic health of the city, beginning with the settlement as an important trading center between the French colonization of the Americas, French colonists and Native Americans in the United States, Native Americans, down to its current role as the 12th-largest port in the United States.Drechsel, Emanuel. ''Mobilian Jargon: Linguistic and Sociohistorical Aspects of a Native American Pidgin''. New York: ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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