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Mary Clem
Mary A. Clem (née Mary A. McLaughlin; 19051979) was an American mathematician, and a human computer. She was a staff member at Iowa State University, and was recognized for inventing the “zero check” technique for detecting errors. Biography Clem was born on October 19, 1905 in the small town of Nevada, in Story County, western Iowa. She completed her high school degree and found employment for several years with the Iowa State Highway Commission The Iowa Department of Transportation (Iowa DOT) is the government organization in the U.S. state of Iowa responsible for the organization, construction, and maintenance of the primary highway system. Located in Ames, Iowa, DOT is also respons ... and Iowa State College as a computing clerk, auditing clerk, and bookkeeper. In 1931, she joined the Mathematics Statistical Service of the Mathematics Department of Iowa State College to work as a human computer under the supervision of George Snedecor. Although she complained t ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Nevada, Iowa
Nevada ( ) is a city in, and the county seat of, Story County, Iowa, United States. The population was 6,925 in the 2020 census, an increase from 6,658 in 2000. Nevada is part of the Ames, Iowa Metropolitan Statistical Area, which is a part of the larger Ames- Boone, Iowa Combined Statistical Area. Nevada is the second-most populous city in Story County. The city's name is pronounced differently from the U.S. state of Nevada. History Nevada was platted in 1853. It was named after the Sierra Nevada mountains. On October 11, 1853 the T. E. Alderman family moved into the first structure in Nevada. This Structure served as Pioneer Store, Post office, and Court Room. A post office has been in operation in Nevada since 1854. Historic properties in Nevada include Briggs Terrace Evergreen Lane Property, completed in 1879, and the Nevada Downtown Historic District, listed on the National Register of Historic Places in 2003. In 2019, the district became the 54th Main Street Iowa co ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Atomic Bombings Of Hiroshima And Nagasaki
The United States detonated two atomic bombs over the Japanese cities of Hiroshima and Nagasaki on 6 and 9 August 1945, respectively. The two bombings killed between 129,000 and 226,000 people, most of whom were civilians, and remain the only use of nuclear weapons in armed conflict so far. In the final year of World War II, the Allies of World War II, Allies prepared for a costly Operation Downfall, invasion of the Japanese mainland. This undertaking was preceded by a Air raids on Japan, conventional and firebombing campaign that devastated 64 Japanese cities. The European theatre of World War II, war in the European theatre concluded when Germany German Instrument of Surrender, surrendered on 8 May 1945, and the Allies turned their full attention to the Pacific War. By July 1945, the Allies' Manhattan Project had produced two types of atomic bombs: "Fat Man", a plutonium implosion-type nuclear weapon; and "Little Boy", an enriched uranium gun-type fission weapon. The 509th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Women Mathematicians
American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, people who self-identify their ancestry as "American" ** American English, the set of varieties of the English language native to the United States ** Native Americans in the United States, indigenous peoples of the United States * American, something of, from, or related to the Americas, also known as "America" ** Indigenous peoples of the Americas * American (word), for analysis and history of the meanings in various contexts Organizations * American Airlines, U.S.-based airline headquartered in Fort Worth, Texas * American Athletic Conference, an American college athletic conference * American Recordings (record label), a record label previously known as Def American * American University, in Washington, D.C. Sports teams Soccer ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Mathematicians From Iowa
A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, structure, space, models, and change. History One of the earliest known mathematicians were Thales of Miletus (c. 624–c.546 BC); he has been hailed as the first true mathematician and the first known individual to whom a mathematical discovery has been attributed. He is credited with the first use of deductive reasoning applied to geometry, by deriving four corollaries to Thales' Theorem. The number of known mathematicians grew when Pythagoras of Samos (c. 582–c. 507 BC) established the Pythagorean School, whose doctrine it was that mathematics ruled the universe and whose motto was "All is number". It was the Pythagoreans who coined the term "mathematics", and with whom the study of mathematics for its own sake begins. The first woman mathematician recorded by history was Hypat ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Iowa State University People
Iowa () is a state in the Midwestern region of the United States, bordered by the Mississippi River to the east and the Missouri River and Big Sioux River to the west. It is bordered by six states: Wisconsin to the northeast, Illinois to the east and southeast, Missouri to the south, Nebraska to the west, South Dakota to the northwest, and Minnesota to the north. During the 18th and early 19th centuries, Iowa was a part of French Louisiana and Spanish Louisiana; its state flag is patterned after the flag of France. After the Louisiana Purchase, people laid the foundation for an agriculture-based economy in the heart of the Corn Belt. In the latter half of the 20th century, Iowa's agricultural economy transitioned to a diversified economy of advanced manufacturing, processing, financial services, information technology, biotechnology, and green energy production. Iowa is the 26th most extensive in total area and the 31st most populous of the 50 U.S. states, with a p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Human Computers
The term "computer", in use from the early 17th century (the first known written reference dates from 1613), meant "one who computes": a person performing mathematical calculations, before electronic computers became commercially available. Alan Turing described the "human computer" as someone who is "supposed to be following fixed rules; he has no authority to deviate from them in any detail." Teams of people, often women from the late nineteenth century onwards, were used to undertake long and often tedious calculations; the work was divided so that this could be done in parallel. The same calculations were frequently performed independently by separate teams to check the correctness of the results. Since the end of the 20th century, the term "human computer" has also been applied to individuals with prodigious powers of mental arithmetic, also known as mental calculators. Origins in sciences Astronomers in Renaissance times used that term about as often as they called thems ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1970 Deaths
Year 197 ( CXCVII) was a common year starting on Saturday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Magius and Rufinus (or, less frequently, year 950 ''Ab urbe condita''). The denomination 197 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * February 19 – Battle of Lugdunum: Emperor Septimius Severus defeats the self-proclaimed emperor Clodius Albinus at Lugdunum (modern Lyon). Albinus commits suicide; legionaries sack the town. * Septimius Severus returns to Rome and has about 30 of Albinus's supporters in the Senate executed. After his victory he declares himself the adopted son of the late Marcus Aurelius. * Septimius Severus forms new naval units, manning all the triremes in Italy with heavily armed troops for war in the East. His soldiers ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1905 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 S ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Smithsonian (magazine)
''Smithsonian'' is the official journal published by the Smithsonian Institution in Washington, D.C. The first issue was published in 1970. History The history of ''Smithsonian'' began when Edward K. Thompson, the retired editor of ''Life'' magazine, was asked by the then-Secretary of the Smithsonian, S. Dillon Ripley, to produce a magazine "about things in which the Smithsonian nstitutionis interested, might be interested or ought to be interested." Thompson would later recall that his philosophy for the new magazine was that it "would stir curiosity in already receptive minds. It would deal with history as it is relevant to the present. It would present art, since true art is never dated, in the richest possible reproduction. It would peer into the future via coverage of social progress and of science and technology. Technical matters would be digested and made intelligible by skilled writers who would stimulate readers to reach upward while not turning them off with jargon ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Timeline Of Women In Computing
This is a timeline of women in computing. It covers the time when women worked as "human computers" and then as programmers of physical computers. Eventually, women programmers went on to write software, develop Internet technologies and other types of programming. Women have also been involved in computer science, various related types of engineering and computer hardware. 18th century 1757 * Nicole-Reine Etable de la Brière Lepaute worked on a team of human computers to determine the next visit of Halley's Comet. The methods they developed have been used by successive human computing teams. 19th century 1842 *Ada Lovelace was an analyst of Charles Babbage's analytical engine and is considered by many the "first computer programmer". 1849 *Maria Mitchell is hired by the U.S. Nautical Almanac Office to work as a computer on tables for the planet Venus. 1875 *Anna Winlock joined the Harvard computers, a group of women engaged in the production of astronomical data at ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Paul Homeyer
Paul Homeyer (26 October 1853 – 27 July 1908) was a German organist who had an active international concert career during the late 19th century and early 20th century. His repertoire encompassed works from a variety of musical periods from ancient to contemporary works. He was particularly admired for his performances of the compositions of Johann Sebastian Bach, Robert Schumann and Felix Mendelssohn. In 1903 he was given special recognition for his work by King George of Saxony. Life Born in Osterode am Harz, Homeyer began studying music at an early age with his father, organist Henry Homeyer, and his uncle, Josef Maria Homeyer. After attending high school in Hildesheim, he studied at Göttingen and at the Leipzig Conservatory. His teachers there were the professors Benjamin Robert Papperitz and Salomon Jadassohn. In 1881 he started appearing in concerts in Leipzig that were organized by Carl Riedel's music club. Three years later he began performing regularly at the Gew ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
