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Robert Brattain
R. Robert Brattain (May 21, 1911 – November 17, 2002) was an American physicist at Shell Development Company. He was involved in a number of secret projects during World War II. He is recognized as one of America's leading infrared spectroscopists for his work in designing several models of spectrophotometer, and for using the infrared spectrophotometer to determine the β-lactam structure of penicillin. His instrumentation work was essential to the subsequent study and understanding of structures in organic chemistry. Biography R. Robert Brattain was born May 21, 1911, to Ross R. Brattain and Ottilie Houser Brattain. Both parents were graduates of Whitman College; Ottilie Houser Brattain was a gifted mathematician. During much of Robert Brattain's childhood, the family lived on a cattle ranch near Tonasket, Washington. Brattain attended Whitman College in Walla Walla, Washington, following his older brother, Walter Houser Brattain. He then completed a master's degree in p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walter Houser Brattain
Walter Houser Brattain (; February 10, 1902 – October 13, 1987) was an American physicist at Bell Labs who, along with fellow scientists John Bardeen and William Shockley, invented the point-contact transistor in December 1947. They shared the 1956 Nobel Prize in Physics for their invention. Brattain devoted much of his life to research on surface states. Biography Walter Brattain was born in Amoy (now Xiamen), Fujian, Qing China, to American parents Ross R. Brattain and Ottilie Houser Brattain. Ross R. Brattain was a teacher at the Ting-Wen Institute, a private school for Chinese boys; Ottilie Houser Brattain was a gifted mathematician. Both were graduates of Whitman College. Ottilie and baby Walter returned to the United States in 1903, and Ross followed shortly afterward. The family lived for several years in Spokane, Washington, then settled on a cattle ranch near Tonasket, Washington in 1911. Brattain attended high school in Washington, spending one year at Queen A ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Walla Walla, Washington
Walla Walla is a city in Walla Walla County, Washington, where it is the largest city and county seat. It had a population of 34,060 at the 2020 census, estimated to have decreased to 33,927 as of 2021. The population of the city and its two suburbs, the town of College Place and unincorporated Walla Walla East, is about 45,000. Walla Walla is in the southeastern region of Washington, approximately four hours away from Portland, Oregon, and four and a half hours from Seattle. It is located only north of the Oregon border. History Native history and early settlement Walla Walla's history starts in 1806 when the Lewis and Clark expedition encountered the Walawalałáma (Walla Walla people) near the mouth of Walla Walla River. Other inhabitants of the valley included the Liksiyu (Cayuse), Imatalamłáma (Umatilla), and Niimíipu (Nez Perce) indigenous peoples. In 1818, Fort Walla Walla (originally Fort Nez Percés), a fur trading outpost run by Hudson's Bay Company (HBC) ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Arnold Orville Beckman
Arnold Orville Beckman (April 10, 1900 – May 18, 2004) was an American chemist, inventor, investor, and philanthropist. While a professor at California Institute of Technology, he founded Beckman Instruments based on his 1934 invention of the pH meter, a device for measuring acidity (and alkalinity), later considered to have "revolutionized the study of chemistry and biology". He also developed the DU spectrophotometer, "probably the most important instrument ever developed towards the advancement of bioscience". Beckman funded the Shockley Semiconductor Laboratory, the first silicon transistor company in California, thus giving rise to Silicon Valley. After retirement, he and his wife Mabel (1900–1989) were numbered among the top philanthropists in the United States. Early life Beckman was born in Cullom, Illinois, a village of about 500 people in a farming community. He was the youngest son of George Beckman, a blacksmith, and his second wife Elizabeth Ellen Jewkes. He w ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
American Physical Society
The American Physical Society (APS) is a not-for-profit membership organization of professionals in physics and related disciplines, comprising nearly fifty divisions, sections, and other units. Its mission is the advancement and diffusion of knowledge of physics. The society publishes more than a dozen scientific journals, including the prestigious '' Physical Review'' and ''Physical Review Letters'', and organizes more than twenty science meetings each year. APS is a member society of the American Institute of Physics. Since January 2021 the organization has been led by chief executive officer Jonathan Bagger. History The American Physical Society was founded on May 20, 1899, when thirty-six physicists gathered at Columbia University for that purpose. They proclaimed the mission of the new Society to be "to advance and diffuse the knowledge of physics", and in one way or another the APS has been at that task ever since. In the early years, virtually the sole activity of the AP ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
N-butane
Butane () or ''n''-butane is an alkane with the formula C4H10. Butane is a gas at room temperature and atmospheric pressure. Butane is a highly flammable, colorless, easily liquefied gas that quickly vaporizes at room temperature. The name butane comes from the root but- (from butyric acid, named after the Greek word for butter) and the suffix -ane. It was discovered by the chemist Dr. Walter Snelling in 1912. It was found dissolved in crude petroleum in 1864 by Edmund Ronalds, who was the first to describe its properties. Butane is one of a group of liquefied petroleum gases (LP gases). The others include propane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. Butane burns more cleanly than gasoline and coal. Density The density of butane is highly dependent on temperature and pressure in the reservoir. For example, the density of liquid phase is 571.8±1 kg/m3 (for pressures up to 2MPa and temperature 27±0.2 °C), while the density of liquid ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Isobutane
Isobutane, also known as ''i''-butane, 2-methylpropane or methylpropane, is a chemical compound with molecular formula HC(CH3)3. It is an isomer of butane. Isobutane is a colourless, odourless gas. It is the simplest alkane with a tertiary carbon atom. Isobutane is used as a precursor molecule in the petrochemical industry, for example in the synthesis of isooctane. Production Isobutane is obtained by isomerization of butane. : Uses Isobutane is the principal feedstock in alkylation units of refineries. Using isobutane, gasoline-grade "blendstocks" are generated with high branching for good combustion characteristics. Typical products created with isobutane are 2,4-dimethylpentane and especially 2,2,4-trimethylpentane. Solvent In the Chevron Phillips slurry process for making high-density polyethylene, isobutane is used as a diluent. As the slurried polyethylene is removed, isobutane is "flashed" off, and condensed, and recycled back into the loop reactor for this purpose. Prec ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harvard University
Harvard University is a private Ivy League research university in Cambridge, Massachusetts. Founded in 1636 as Harvard College and named for its first benefactor, the Puritan clergyman John Harvard, it is the oldest institution of higher learning in the United States and one of the most prestigious and highly ranked universities in the world. The university is composed of ten academic faculties plus Harvard Radcliffe Institute. The Faculty of Arts and Sciences offers study in a wide range of undergraduate and graduate academic disciplines, and other faculties offer only graduate degrees, including professional degrees. Harvard has three main campuses: the Cambridge campus centered on Harvard Yard; an adjoining campus immediately across Charles River in the Allston neighborhood of Boston; and the medical campus in Boston's Longwood Medical Area. Harvard's endowment is valued at $50.9 billion, making it the wealthiest academic institution in the world. Endowment inco ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harold Gershinowitz
Harold may refer to: People * Harold (given name), including a list of persons and fictional characters with the name * Harold (surname), surname in the English language * András Arató, known in meme culture as "Hide the Pain Harold" Arts and entertainment * ''Harold'' (film), a 2008 comedy film * ''Harold'', an 1876 poem by Alfred, Lord Tennyson * ''Harold, the Last of the Saxons'', an 1848 book by Edward Bulwer-Lytton, 1st Baron Lytton * ''Harold or the Norman Conquest'', an opera by Frederic Cowen * ''Harold'', an 1885 opera by Eduard Nápravník * Harold, a character from the cartoon ''The Grim Adventures of Billy & Mandy'' * Harold & Kumar, a US movie; Harold/Harry is the main actor in the show. Places ;In the United States * Alpine, Los Angeles County, California, an erstwhile settlement that was also known as Harold * Harold, Florida, an unincorporated community * Harold, Kentucky, an unincorporated community * Harold, Missouri, an unincorporated community ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Butane
Butane () or ''n''-butane is an alkane with the formula C4H10. Butane is a gas at room temperature and atmospheric pressure. Butane is a highly flammable, colorless, easily liquefied gas that quickly vaporizes at room temperature. The name butane comes from the root but- (from butyric acid, named after the Greek word for butter) and the suffix -ane. It was discovered by the chemist Dr. Walter Snelling in 1912. It was found dissolved in crude petroleum in 1864 by Edmund Ronalds, who was the first to describe its properties. Butane is one of a group of liquefied petroleum gases (LP gases). The others include propane, propylene, butadiene, butylene, isobutylene, and mixtures thereof. Butane burns more cleanly than gasoline and coal. Density The density of butane is highly dependent on temperature and pressure in the reservoir. For example, the density of liquid phase is 571.8±1 kg/m3 (for pressures up to 2MPa and temperature 27±0.2 °C), while the density of liq ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Emeryville, California
Emeryville is a city located in northwest Alameda County, California, in the United States. It lies in a corridor between the cities of Berkeley and Oakland, with a border on the shore of San Francisco Bay. The resident population was 12,905 as of 2020. Its proximity to San Francisco, the Bay Bridge, the University of California, Berkeley, and Silicon Valley has been a catalyst for recent economic growth. It is the home to Pixar Animation Studios, Peet's Coffee & Tea, the Center for Investigative Reporting, Alternative Tentacles and Clif Bar. In addition, several well-known tech and software companies are located in Emeryville: LeapFrog, Sendmail, MobiTV, Novartis (formerly Chiron before April 2006), and BigFix (now HCL). Emeryville attracts many weekday commuters due to its position as a regional employment center. Emeryville has some features of an edge city; however, it is located within the inner urban core of Oakland/the greater East Bay. It was industrialized before the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Otto Beeck
Otto is a masculine German given name and a surname. It originates as an Old High German short form (variants ''Audo'', ''Odo'', ''Udo'') of Germanic names beginning in ''aud-'', an element meaning "wealth, prosperity". The name is recorded from the 7th century ( Odo, son of Uro, courtier of Sigebert III). It was the name of three 10th-century German kings, the first of whom was Otto I the Great, the first Holy Roman Emperor, founder of the Ottonian dynasty. The Gothic form of the prefix was ''auda-'' (as in e.g. '' Audaþius''), the Anglo-Saxon form was ''ead-'' (as in e.g. ''Eadmund''), and the Old Norse form was '' auð-''. The given name Otis arose from an English surname, which was in turn derived from ''Ode'', a variant form of ''Odo, Otto''. Due to Otto von Bismarck, the given name ''Otto'' was strongly associated with the German Empire in the later 19th century. It was comparatively frequently given in the United States (presumably in German American families) during ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Great Depression
The Great Depression (19291939) was an economic shock that impacted most countries across the world. It was a period of economic depression that became evident after a major fall in stock prices in the United States. The economic contagion began around September and led to the Wall Street stock market crash of October 24 (Black Thursday). It was the longest, deepest, and most widespread depression of the 20th century. Between 1929 and 1932, worldwide gross domestic product (GDP) fell by an estimated 15%. By comparison, worldwide GDP fell by less than 1% from 2008 to 2009 during the Great Recession. Some economies started to recover by the mid-1930s. However, in many countries, the negative effects of the Great Depression lasted until the beginning of World War II. Devastating effects were seen in both rich and poor countries with falling personal income, prices, tax revenues, and profits. International trade fell by more than 50%, unemployment in the U.S. rose to 23% and ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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