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Ferdinand Graft Brickwedde
Ferdinand Graft Brickwedde (26 March 1903 – 29 March 1989), a physicist at the National Bureau of Standards (now the National Institute of Standards and Technology), in 1931 produced the first sample of hydrogen in which the spectrum of its heavy isotope, deuterium, could be observed. This was a critical step in the discovery of deuterium, for which Brickwedde's collaborator, Harold Urey, was awarded the Nobel Prize in Chemistry in 1934. Biography He was born on 26 March 1903 in Baltimore, Maryland. His parents were the photographer Ferdinand Henry (* 1878 in New York) and Virginia (Graft) Brickwedde (* 1874 in Illinois). He was married to physicist Marion Langhorne Howard Birckwedde. Brickwedde was educated at Johns Hopkins University, B.A. 1922, M.A. 1924, and Ph.D. 1925. A endowed lectureship in his nameis maintained there. In 1925 he joined the National Bureau of Standards as a postdoctoral Mansell Research Associate, was promoted to Chief of its Low Temperature Labor ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Marion Langhorne Howard Brickwedde (1909-1997) With Ferdinand G
Marion or MARION may refer to: Arts and entertainment *Marion (band), a British alternative rock group * ''Marion'' (miniseries), a 1974 miniseries * ''Marion'' (1920 film), an Italian silent film * ''Marion'' (2024 film), a UK short People and fictional characters * Marion (given name), a list of people and fictional characters with the given name * Marion (surname), a list of people with the surname Places Australia * City of Marion, a local government area in South Australia * Marion, South Australia, a suburb of Adelaide ** Marion railway station United States * Marion, Alabama, a city * Marion, Arkansas, a city * Marion, Connecticut, a neighborhood of the town of Southington * Marion, Georgia, an unincorporated community * Marion, Illinois, a city * Marion, Indiana, a city ** Marion station (Amtrak), a former train station ** Marion station (Pittsburgh, Cincinnati, Chicago and St. Louis Railroad), a former train station of the Pennsylvania Railroad * Marion, Shelby C ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
National Institute Of Standards And Technology
The National Institute of Standards and Technology (NIST) is an agency of the United States Department of Commerce whose mission is to promote American innovation and industrial competitiveness. NIST's activities are organized into Outline of physical science, physical science laboratory programs that include Nanotechnology, nanoscale science and technology, engineering, information technology, neutron research, material measurement, and physical measurement. From 1901 to 1988, the agency was named the National Bureau of Standards. History Background The Articles of Confederation, ratified by the colonies in 1781, provided: The United States in Congress assembled shall also have the sole and exclusive right and power of regulating the alloy and value of coin struck by their own authority, or by that of the respective states—fixing the standards of weights and measures throughout the United States. Article 1, section 8, of the Constitution of the United States, ratified i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Hydrogen
Hydrogen is a chemical element; it has chemical symbol, symbol H and atomic number 1. It is the lightest and abundance of the chemical elements, most abundant chemical element in the universe, constituting about 75% of all baryon, normal matter. Under standard conditions, hydrogen is a gas of diatomic molecules with the chemical formula, formula , called dihydrogen, or sometimes hydrogen gas, molecular hydrogen, or simply hydrogen. Dihydrogen is colorless, odorless, non-toxic, and highly combustible. Stars, including the Sun, mainly consist of hydrogen in a plasma state, while on Earth, hydrogen is found as the gas (dihydrogen) and in molecular forms, such as in water and organic compounds. The most common isotope of hydrogen (H) consists of one proton, one electron, and no neutrons. Hydrogen gas was first produced artificially in the 17th century by the reaction of acids with metals. Henry Cavendish, in 1766–1781, identified hydrogen gas as a distinct substance and discovere ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Deuterium
Deuterium (hydrogen-2, symbol H or D, also known as heavy hydrogen) is one of two stable isotopes of hydrogen; the other is protium, or hydrogen-1, H. The deuterium nucleus (deuteron) contains one proton and one neutron, whereas the far more common H has no neutrons. The name ''deuterium'' comes from Greek '' deuteros'', meaning "second". American chemist Harold Urey discovered deuterium in 1931. Urey and others produced samples of heavy water in which the H had been highly concentrated. The discovery of deuterium won Urey a Nobel Prize in 1934. Nearly all deuterium found in nature was synthesized in the Big Bang 13.8 billion years ago, forming the primordial ratio of H to H (~26 deuterium nuclei per 10 hydrogen nuclei). Deuterium is subsequently produced by the slow stellar proton–proton chain, but rapidly destroyed by exothermic fusion reactions. The deuterium–deuterium reaction has the second-lowest energy threshold, and is the most astrophysically acce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Harold Urey
Harold Clayton Urey ( ; April 29, 1893 – January 5, 1981) was an American physical chemist whose pioneering work on isotopes earned him the Nobel Prize in Chemistry in 1934 for the discovery of deuterium. He played a significant role in the development of the Nuclear weapon, atom bomb, as well as contributing to theories on the Miller–Urey experiment, development of organic life from non-living matter. Born in Walkerton, Indiana, Urey studied thermodynamics under Gilbert N. Lewis at the University of California, Berkeley. After he received his PhD in 1923, he was awarded a fellowship by the American-Scandinavian Foundation to study at the Niels Bohr Institute in Copenhagen. He was a research associate at Johns Hopkins University before becoming an associate professor of chemistry at Columbia University. In 1931, he began work with the separation of isotopes that resulted in the discovery of deuterium. During World War II, Urey turned his knowledge of isotope separation to ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Johns Hopkins University
The Johns Hopkins University (often abbreviated as Johns Hopkins, Hopkins, or JHU) is a private university, private research university in Baltimore, Maryland, United States. Founded in 1876 based on the European research institution model, Johns Hopkins is considered to be the first research university in the U.S. The university was named for its first benefactor, the American entrepreneur and Quakers, Quaker philanthropist Johns Hopkins. Hopkins's $7 million bequest (equivalent to $ in ) to establish the university was the largest Philanthropy, philanthropic gift in U.S. history up to that time. Daniel Coit Gilman, who was inaugurated as :Presidents of Johns Hopkins University, Johns Hopkins's first president on February 22, 1876, led the university to revolutionize higher education in the U.S. by integrating teaching and research. In 1900, Johns Hopkins became a founding member of the Association of American Universities. The university has led all Higher education in the U ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Philosophical Society Of Washington
Founded in 1871, the Philosophical Society of Washington is the oldest scientific society in Washington, D.C. It continues today as PSW Science. Since 1887, the Society has met regularly in the assembly hall of the Cosmos Club. In the Club's present location since 1951, the assembly hall is now called the John Wesley Powell auditorium. Meetings are roughly every other Friday, except in the summer. Meetings are free and open to the public. A lecture is given by a scientist at each meeting. In 1931, the Society established the ongoing Joseph Henry Lecture series. The lectures present speakers at who have reached the pinnacles of their respective fields, and in recent years have included Nobel laureates Baruch Blumberg, William D. Phillips, John C. Mather, and Craig Mello. History The Saturday Club In 1846, the Smithsonian Institution was founded and its Regents elected Joseph Henry as the Institution’s first Secretary. In 1855, the Smithsonian Castle was completed, wi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pennsylvania State University
The Pennsylvania State University (Penn State or PSU) is a Public university, public Commonwealth System of Higher Education, state-related Land-grant university, land-grant research university with campuses and facilities throughout Pennsylvania, United States. Founded in 1855 as Farmers' High School of Pennsylvania, Penn State was named the state's first land-grant university eight years later, in 1863. Its primary campus, known as Penn State University Park, is located in State College, Pennsylvania, State College and College Township, Pennsylvania, College Township. Penn State enrolls more than 89,000 students, of which more than 74,000 are undergraduates and more than 14,000 are postgraduates. In addition to its land-grant designation, the university is a National Sea Grant College Program, sea-grant, National Space Grant College and Fellowship Program, space-grant, and one of only six Sun Grant Association, sun-grant universities. It is Carnegie Classification of Instit ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Linwood, New Jersey
Linwood is a City (New Jersey), city in Atlantic County, New Jersey, Atlantic County, in the U.S. state of New Jersey. As of the 2020 United States census, the city's population was 6,971, a decrease of 121 (−1.7%) from the 2010 United States census, 2010 census count of 7,092, which in turn reflected a decline of 80 (−1.1%) from the 7,172 counted in the 2000 United States census, 2000 census. Linwood was originally incorporated as a borough (New Jersey), borough by an act of the New Jersey Legislature on February 20, 1889, from portions of Egg Harbor Township, New Jersey, Egg Harbor Township, based on the results of a referendum held the previous day. Linwood was reincorporated as a city on April 27, 1931.Snyder, John P''The Story of New Jersey's Civil Boundaries: 1606-1968'' Bureau of Geology and Topography; Trenton, New Jersey; 1969. p. 69. Accessed May 29, 2024. The area had been called Leedsville until 1880, when a post office was being established. The United States Po ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1903 Births
Events January * January 1 – Edward VII is proclaimed Emperor of India. * January 10 – The Aceh Sultanate was fully annexed by the Dutch East Indies, Dutch forces, deposing the last sultan, marking the end of the Aceh War that have lasted for almost 30 years. * January 19 – The first west–east transatlantic radio broadcast is made from the United States to England (the first east–west broadcast having been made in 1901#December, 1901). February * February 13 – Venezuelan crisis of 1902–03, Venezuelan crisis: After agreeing to arbitration in Washington, the United Kingdom, Germany and Italy reach a settlement with Venezuela resulting in the Washington Protocols. The naval blockade that began in 1902 ends. * February 23 – Cuba leases Guantánamo Bay to the United States "in perpetuity". March * March 2 – In New York City, the Martha Washington Hotel, the first hotel exclusively for women, opens. * March 3 – The British Admir ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
1989 Deaths
1989 was a turning point in political history with the " Revolutions of 1989" which ended communism in Eastern Bloc of Europe, starting in Poland and Hungary, with experiments in power-sharing coming to a head with the opening of the Berlin Wall in November, the Velvet Revolution in Czechoslovakia and the overthrow of the communist dictatorship in Romania in December; the movement ended in December 1991 with the dissolution of the Soviet Union. Revolutions against communist governments in Eastern Europe mainly succeeded, but the year also saw the suppression by the Chinese government of the 1989 Tiananmen Square protests in Beijing. It was the year of the first Brazilian direct presidential election in 29 years, since the end of the military government in 1985 that ruled the country for more than twenty years, and marked the redemocratization process's final point. F. W. de Klerk was elected as State President of South Africa, and his regime gradually dismantled th ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
