Skip to main content

Edwin mcmillan Biography

Edwin McMillan

(Edwin Mattison McMillan; Redondo Beach, 1907-El Cerrito, 1991) American nuclear physicist and chemist.Trained at the California Institute of Technology, McMillan received his doctorate from Princeton University in 1932.In 1946 he achieved a teaching position at the University of California, on the Berkeley campus.

Edwin McMillan

In the development of his studies on the fission of the atomic nucleus, he discovered neptunium, one of the decay products of the isotope 239 of uranium.In 1940, in collaboration with Philip H.Abelson, he succeeded in isolating this new element, the first belonging to the series of transurans in the periodic table, of particular importance in nuclear energy.

During World War II, McMillan collaborated in the improvement of sonar and spy radars, and participated in the manufacture of the first atomic bomb.In 1945 he managed to overcome the theoretical limits of the speeds of accelerated particles in a cyclotron and, independently of the Russian scientist Vladimir Veksler, he found a way to maintain synchronization for indefinite speeds.

From 1954 to 1958 he was part of the United States government commission for the study of atomic energy and, in 1958, he was appointed director of the Lawrence Radiation Laboratory, from where he launched several investigations.He also presided over the American National Academy of Sciences, between 1968 and 1971.

McMillan bet throughout his career for the progress of atomic energy and for its possible applications a posteriori .In recognition of his scientific work, he shared the Nobel Prize in Chemistry with his compatriot Glenn T.Seaborg, in the 1951 edition.He retired from academia in 1973 and, in 1976, published a memoir entitled Early days in the Lawrence Laboratory ( The first days in the Lawrence Laboratory ).A large part of his scientific theories were reflected in the collective work Lecture in nuclear physics ( Conferences on nuclear physics ), published in 1947.His work should also be mentioned The synchrotron.Proposal for a high-energy particle accelerator .

Labels:

Comments

Post a Comment

Popular posts from this blog

Jose Risueño Biography

José Risueño (Granada, 1665- id ., 1732) Spanish sculptor and painter.Follower of A.Cano, P.de Mena and D.de Mora, he worked in Granada, where he made the figures of the chapel of the Sacrament of the Carthusian monastery, the San Juan de Dios of the church of San Matías and the Crucified Christ of Sacromonte.It is famous for its polychrome baked clay figurines ( Penitent Magdalene ).
Post a Comment
Read more

The history of the lottery in the world and in Spain

The history of the lottery in the world and in Spain, anecdotes and dates that will leave you truly surprised since Who could imagine that the lottery and the games to do have been part of our life for so many years? Article index Emergence of the lottery The oldest known data on the emergence of the lottery, take us to 205 and 187 BC , and the Han Chinese dynasty., it has come to prove that the Great Wall of China was built with money raised by the lottery.There is evidence that Keno was played, which consists in guessing that numbers contain prizes and that it still exists today. There is also evidence that the Romans distributed lottery tickets, with different prizes.However, not all prizes were especially d That is, for example, Emperor Heliogabalo preferred to distribute chickpeas, slaves, snakes...and even death sentences! For his part, in the Republic of Genoa, certain senators were chosen at random In France, the lottery came somewhat later, in 1776, and even the ...
Post a Comment
Read more

Heinrich maier Biography

Heinrich Maier (Heidenheim, 1867-Berlin, 1933) German philosopher.He produced a "critical realism", along the lines of H.Driesch.He is the author, among other works, of Aristotle's syllogistics (1896-1900) and of The philosophy of reality (1926-1935).
Post a Comment
Read more

Andres Iniesta Biography

Andrés Iniesta (Andrés Iniesta Luján; Fuentealbilla, Albacete, 1984) Spanish footballer.Formed at La Masia azulgrana and linked from its origins to Futbol Club Barcelona, ​​he has been one of the fundamental pieces of Josep Guardiola's Barça, winner in 14 of the 18 competitions he played during the four years he served as coach (2008-2012).Equally decisive has been his contribution to the recent successes of the Spanish team: he scored in the final against the Netherlands the goal that gave the Red the World Cup in South Africa (2010) and was declared by UEFA the best player of the European Championship.2012, a trophy that Spain raised for the second time in a row, after also winning the 2008 edition. Andrés Iniesta Andrés y su Younger sister, Maribel, grew up in a working-class family.His father was a bricklayer and his mother helped his grandfather in the bar he ran in town.Always playing ball, at the age of eight his parents decided to enroll him in the selection tests to...
Post a Comment
Read more

François Mitterrand Biography

François Mitterrand (Jarnac, Charente, 1916-Paris, 1996) French socialist politician, president of the French republic between 1981 and 1995.Born into a middle-class Catholic family, he graduated in Law and Political Science in Paris.During World War II (1939-45) he was mobilized and taken prisoner by the Germans (1940); then he escaped and joined the collaborationist Vichy regime; from 1942 he was active in the Resistance, but without adhering directly to Charles De Gaulle.After his resignation, Mitterrand entered politics, being elected deputy by Nièvre in 1946, under a centrist label (only gradually would he evolve to the left). François Mitterrand Between 1947 and 1957 he held multiple positions in the changing ministerial combinations of the Fourth Republic: secretary of state for ex-combatants, secretary of State of Information, Undersecretary of the Presidency, Minister of Colonies, Minister of State, Minister delegated to the Council of Europe, Minister of the Interior a...
Post a Comment
Read more

Joseph radetzky Biography

Joseph Radetzky (Joseph Wenzeslaus, count of Radetzky) Austrian military man (Trebnitz, Bohemia, 1766-Milan, 1858).Born into an old aristocratic family of the Habsburg Empire, he entered the army at a young age and fought in the wars against Turkey (1788-89) and against France (1792-1814).He played a prominent role in the final offensive of the European allies against Napoleon, designing the strategy with which they won at the Battle of Leipzig (1813). After the war, the Congress of Vienna assigned to Austria the Italian territories around Venice and Milan, as well as a right of general control over Italy (1815).Radetzky was placed in command of the Austrian troops in Italy, with the task of maintaining the order established in the peninsula (1831).In 1836 he was appointed Marshal.The nationalist and liberal revolutions of 1848, whose main enemy was the Austrian occupier, forced him to withdraw with his troops. However, it did not take long to regain the initiative, defeating Ca...
Post a Comment
Read more

Angel Fole Biography

Ánxel Fole (Ánxel Fole Sánchez; Lugo, 1903-1986) Spanish narrator and playwright in Galician language.Belonging, along with Álvaro Cunqueiro and Rafael Dieste, to a generation of Galician writers trained before the Civil War, Fole chose not to go into exile after the war and was subjected to a total internal ostracism. Ánxel Fole He began studies of philosophy and letters and law in Valladolid and Madrid, but abandoned both careers.He began to publish in the Lugo newspaper La Provincia (1927) and later collaborated in El Pueblo Gallego, in which his first article in Galician (1934) would appear and began his journalistic series Andar y ver .During the Second Republic he intervened in politics; He was vice president of the Lugo Grouping of the Republican Party and later militated in the Galician Party.At the same time he directed the literary page of Guión, wrote in Resol and founded Yunque, magazines that disappeared at the beginning of the Civil War (1936-1939). In...
Post a Comment
Read more

Gregorio ferro Biography

Gregorio Ferro (Gregorio Ferro Requeijo; Santa María de Lamas, 1744-Madrid, 1812) Spanish painter.He was a chamber painter and general director of the Academia de San Fernando.His style is influenced by Mengs ( Sagrada Familia , The Count of Floridablanca ). Gregorio Ferro began painting techniques in Santiago de Compostela (La Coruña), under the tutelage of a Benedictine monk.He then moved to Madrid, where he was a disciple of Felipe de Castro, Corrado Giaquinto and Antonio Rafael Mengs, successively.He studied at the San Fernando Academy of Fine Arts in Madrid, and already in the 1760 Academy contest he won third prize, after Ramón Bayeu and Francisco de Goya, who won the first and second respectively. At the Academy of San Fernando he held the positions of lieutenant director (1788), director (1797) and director general (1804), and he was appointed chamber painter of Carlos IV.Little known but appreciable is his facet as an engraver and illustrator: he illustrated part of t...
Post a Comment
Read more

X-ray history

The X-rays were discovered in 1895 and from there they became a very revolutionary application in many branches of science, from astronomy to radiographs that we have not done so many times.the 120th anniversary of the X-rays knowing his inventor and the research that led him to such an important scientific advance. Article index Who invented the X-rays? The inventor or, rather, the person who discovered the X-rays was Wilhelm Conrad Rontgen , a German physicist who was focused on the field of electromagnetics Nothing else to present his discovery, Rontgen's theory received great attention from critics and public, and was translated into French, English or Russian. Although it is not a name as well known today as that of others you celebrate writers, the name of Wilhelm Conrad Rontgen is written in gold letters in the medical field, where he has had and has and numerous applications.The importance of his discovery was such in his day that he was the first Nobel Prize ...
Post a Comment
Read more