NationMaster - Encyclopedia: Louis de Broglie

Louis-Victor-Pierre-Raymond, 7th duc de Broglie, generally known as Louis de Broglie (August 15, 1892–March 19, 1987), was a French physicist and Nobel Prize laureate. Jump to: navigation, search August 15 is the 227th day of the year in the Gregorian Calendar (228th in leap years), with 138 days remaining. ... Jump to: navigation, search 1892 was a leap year starting on Friday (see link for calendar). ... Jump to: navigation, search March 19 is the 78th day of the year in the Gregorian calendar (79th in leap years). ... Jump to: navigation, search 1987 is a common year starting on Thursday of the Gregorian calendar. ... A physicist is a scientist trained in physics. ... Sir Edward Appletons medal Photographs of Nobel Prize Medals. ...

He was born in Dieppe (Seine-Maritime), younger son of Victor, 5th duc de Broglie. In 1960, upon the death without heir of his older brother, Maurice, 6th duc de Broglie, also a physicist, he became the 7th duc de Broglie. He never married. When he died in Louveciennes (Yvelines), he was succeeded as duke by a distant cousin, Victor-François, 8th duc de Broglie. Dieppe is a town and commune in the Seine-Maritime département of Haute-Normandie (eastern Normandy), France. ... Seine-Maritime is a French département in Normandy. ... Louis-Alphonse-Victor, 5th duc de Broglie (30 October 1846–26 August 1906), was a French aristocrat. ... Jump to: navigation, search 1960 was a leap year starting on Friday (link will take you to calendar). ... Louis-César-Victor-Maurice, 6th duc de Broglie, generally known as Maurice de Broglie (April 27, 1875–July 14, 1960), was a French physicist. ... Arms of the ducs de Broglie (or, a saltire anchory azure) The title of Duc de Broglie was a French peerage belonging to a family of Piedmontese origin, which emigrated to France in the year 1643. ... Jump to: navigation, search Louveciennes is a village and commune in the Yvelines dÃ©partement, in France, in the western suburbs of Paris, between Versailles and Saint-Germain-en-Laye, and adjacent to Marly-le-Roi. ... Yvelines is a French dÃ©partement in the rÃ©gion of ÃŽle-de-France. ... The term duke is a title of nobility which refers to the sovereign male ruler of a Continental European duchy, to a nobleman of the highest grade of the British peerage, or to the highest rank of nobility in various other European countries, including Portugal, Spain and France (in Italy... Jump to: navigation, search Victor-FranÃ§ois Marie LÃ©on, 8th duc de Broglie (b. ...

He had originally intended a career as a humanist, and received his first degree in history. Afterwards, though, he turned his attention—probably under his brother's influence—toward mathematics and physics. With the outbreak of the First World War in 1914, he offered his services to the army in the development of radio communications. The humanities are a group of academic subjects united by a commitment to studying aspects of the human condition and a qualitative approach that generally prevents a single paradigm from coming to define any discipline. ... One of the most famous quotations about history and the value of studying history by Spanish philosopher, George Santayana, reads: Those who cannot remember the past are condemned to repeat it. ... Jump to: navigation, search World War I was primarily a European conflict with many facets: immense human sacrifice, stalemate trench warfare, and the use of new, devastating weapons - tanks, aircraft, machineguns, and poison gas. ... Jump to: navigation, search 1914 is a common year starting on Thursday. ...

Unlike his brother Maurice, who was primarily an experimental physicist, Louis de Broglie had the mind of a theoretician rather than that of an experimenter or engineer. His 1924 doctoral thesis, Recherches sur la théorie des quanta (Research on Quantum Theory), introduced his theory of electron waves. This included the wave-particle duality theory of matter, based on the work of Einstein and Planck. This research culminated in the de Broglie hypothesis stating that any moving particle or object had an associated wave. Louis de Broglie thus created a new field in physics, the mécanique ondulatoire, or wave mechanics, uniting the physics of light and matter. For this he won the Nobel Prize in Physics in 1929. Among the applications of this work has been the development of electron microscopes to get much better image resolution than optical ones, because of shorter wavelengths of electrons compared with photons. Jump to: navigation, search 1924 was a leap year starting on Tuesday (link will take you to calendar). ... Jump to: navigation, search In physics, wave-particle duality holds that light and matter can exhibit properties of both waves and of particles. ... For other topics related to Einstein see Einstein (disambiguation). ... This article is about Planck, the German physicist. ... In 1923 Louis de Broglie claimed that all matter has a wave-like nature and related its wavelength and momentum by the equation: where: is the particles wavelength is Plancks constant is the particles momentum is the particles mass is the particles velocity The greater... Sir Edward Appletons medal Photographs of Nobel Prize Medals. ... Since antiquity, people have tried to understand the behavior of matter: why unsupported objects drop to the ground, why different materials have different properties, and so forth. ... Jump to: navigation, search 1929 was a common year starting on Tuesday (link will take you to calendar). ... Jump to: navigation, search A transmission electron microscope. ... In physics, the photon (from Greek φοτος, meaning light) is a quantum of excitation of the quantised electromagnetic field and is one of the elementary particles studied by quantum electrodynamics (QED) which is the oldest part of the Standard Model of particle physics. ...

In his later career, Louis de Broglie worked to develop a causal explanation of wave mechanics, in opposition to the wholly probabilistic models which dominate quantum mechanical theory. Although causality, the relationship between causes and effects, is often examined in the fields of philosophy, computer science, and statistics, it has a place in the study of physics as well. ... The word probability derives from the Latin probare (to prove, or to test). ... Fig. ...

In addition to strictly scientific work, Louis de Broglie thought and wrote about the philosophy of science, including the value of modern scientific discoveries. Jump to: navigation, search The philosophy of science is the branch of philosophy which studies the philosophical foundations, assumptions, and implications of science, including the natural sciences such as physics and biology, and the social sciences, such as psychology and economics. ...

Louis de Broglie became a member of the Académie des sciences in 1933, and was the academy's perpetual secretary from 1942. On 12 October 1944, he was elected to the Académie française, replacing mathematician Émile Picard. Because of the deaths and imprisonments of Académie members during the occupation and other effects of the war, the Académie was unable to meet the quorum of twenty members for his election; due to the exceptional circumstances, however, his unanimous election by the seventeen members present was accepted. In an event unique in the history of the Académie, he was received as a member by his own brother Maurice, who had been elected in 1934. UNESCO awarded him the first Kalinga Prize in 1952 for his work in popularizing scientific knowledge, and he was elected a Fellow of the Royal Society of London on 23 April 1953. In 1961 he received the title of Knight of the Grand Cross in the Légion d'honneur. The French Academy of Sciences (AcadÃ©mie des sciences) is a learned society, founded in 1666 by Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French scientific research. ... Jump to: navigation, search 1933 was a common year starting on Sunday (link will take you to calendar). ... Jump to: navigation, search This article is about the year. ... Jump to: navigation, search October 12 is the 285th day of the year in the Gregorian calendar (286th in leap years). ... Jump to: navigation, search 1944 was a leap year starting on Saturday (link will take you to calendar). ... The AcadÃ©mie franÃ§aise, or French Academy, is the pre-eminent French learned body on matters pertaining to the French language. ... Charles Ã‰mile Picard (July 24, 1856 - December 11, 1941) was a leading French mathematician. ... Jump to: navigation, search 1934 was a common year starting on Monday (link will take you to calendar). ... Jump to: navigation, search UNESCO logo The United Nations Educational, Scientific and Cultural Organization, commonly known as UNESCO, is a specialized agency of the United Nations system established in 1945. ... Jump to: navigation, search 1952 was a leap year starting on Tuesday (link will take you to calendar). ... The Royal Society of London is claimed to be the oldest learned society still in existence and was founded in 1660. ... Jump to: navigation, search April 23 is the 113th day of the year in the Gregorian Calendar (114th in leap years). ... Jump to: navigation, search 1953 is a common year starting on Thursday. ... Jump to: navigation, search 1961 was a common year starting on Sunday (link will take you to calendar). ... Jump to: navigation, search Knights badge of the Legion of Honour The LÃ©gion dhonneur (Legion of Honor (AmE) or Legion of Honour (ComE)) is an Order of Chivalry first established by NapolÃ©on Bonaparte, First Consul of the French Republic, on May 19, 1802. ...

Note on pronunciation

Note: in French "de Broglie" is pronounced [dœ bʀœj], which sounds close to "de Broy". This is an alteration of the Italian pronunciation of "gl" (sound like "ll"); the original name was "Broglia", and was gallicized in 1654 [1]. Jump to: navigation, search Events April 5 - Signing of the Treaty of Westminster, ending the First Anglo-Dutch War. ...

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Image File history File links i would like to see some quotations by or about goebbels. ... Wikiquote logo Wikiquote is a sister project of Wikipedia, using the same MediaWiki software. ... BITCH!111 ...

Categories: Nobel Prize in Physics winners | Members of the Académie française | Members of the Académie des sciences | Fellows of the Royal Society | French nobility | French physicists | Ducs de Broglie | 1892 births | 1987 deaths Charles Ã‰mile Picard (July 24, 1856 - December 11, 1941) was a leading French mathematician. ... This is a list of members of the AcadÃ©mie franÃ§aise (French Academy) by seat number. ... The AcadÃ©mie franÃ§aise, or French Academy, is the pre-eminent French learned body on matters pertaining to the French language. ... Jump to: navigation, search 1944 was a leap year starting on Saturday (link will take you to calendar). ... Jump to: navigation, search 1987 is a common year starting on Thursday of the Gregorian calendar. ... Michel DebrÃ©, French politician Michel DebrÃ© (January 15, 1912 - August 2, 1996) was a French politician. ...

Note on pronunciation GA_googleFillSlot("encyclopedia_square");

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Note on pronunciation