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	Broglie, Louis Victor, duc de on Encyclopedia.com (Site not responding. Last check: 2007-10-22)
		De Broglie hypothesized (1924) that particles should also exhibit certain wavelike properties, a prediction that led to the development of wave mechanics, a form of quantum mechanics.
		The existence of these matter waves was confirmed experimentally in 1927, and de Broglie received the 1929 Nobel Prize in Physics for his theory.
		Marguerite de France as Minerva: a sixteenth-century Limoges painted enamel by Jean de Court in the Wallace Collection.(Critical Essay)
	www.encyclopedia.com /html/B/BroglieL1V1.asp (345 words)

	Louis-Victor de Broglie (Site not responding. Last check: 2007-10-22)
		De Broglie had a mind of a theoretician rather than one of an experimenter or engineer.
		De Broglie was a Fellow of the Royal Society of London.
		De Broglie's 1924 doctoral thesis Recherches sur la théorie des quanta (tr.
	www.sciencedaily.com /encyclopedia/louis_victor_de_broglie (336 words)

	Louis, 7th duc de Broglie -- Facts, Info, and Encyclopedia article (Site not responding. Last check: 2007-10-22)
		For this he won the (An annual award for outstanding contributions to chemistry or physics or physiology and medicine or literature or economics or peace) Nobel Prize in (The science of matter and energy and their interactions) Physics in 1929.
		Louis de Broglie became a member of the (Click link for more info and facts about Académie des sciences) Académie des sciences in 1933, and was the academy's perpetual secretary from 1942.
		Note: in (The Romance language spoken in France and in countries colonized by France) French "de Broglie" is pronounced, which sounds close to "de Broy".
	www.absoluteastronomy.com /encyclopedia/l/lo/louis,_7th_duc_de_broglie.htm (742 words)

	Broglie, Louis-Victor, 7^e duc (duke) de,
		Broglie was the second son of a member of the French nobility.
		Louis occasionally joined his brother in his work, but it was the purely conceptual side of physics that attracted him.
		Broglie's interest in what he called the "mysteries" of atomic physics--namely, unsolved conceptual problems of the science--was aroused when he learned from his brother about the work of the German physicists Max Planck and Albert Einstein, but the decision to take up the profession of physicist was long in coming.
	www.britannica.com /nobel/micro/87_61.html (1032 words)

	Broglie (Site not responding. Last check: 2007-10-22)
		De Broglie's doctoral thesis Recherches sur la théorie des quanta (Researches on the quantum theory) of 1924 put forward this theory of electron waves, based on the work of Einstein and Planck.
		De Broglie's theory of electron matter waves was later used by Schrödinger, Dirac and others to develop wave mechanics.
		In 1933 de Broglie was elected to the
	www-groups.dcs.st-and.ac.uk /~history/Mathematicians/Broglie.html (1458 words)

	de Broglie, Louis (1892-1987) (Site not responding. Last check: 2007-10-22)
		Louis de Broglie was the first to propose that particles can, in some circumstances, behave as waves.
		Influenced by the work of Einstein on the photoelectric effect, de Broglie suggested in 1923 that particles, such as electrons, might in some circumstances behave as waves and, in consequence, be diffracted.
		The success of this equation attested to the brilliance of de Broglie's idea and his work was recognized in 1929 when he was awarded the Nobel Prize for Physics.
	www.rdg.ac.uk /physicsnet/units/flap/glossary/biogs/bdebrogl.htm (251 words)

	[No title] (Site not responding. Last check: 2007-10-22)
		His brother Maurice de Broglie was at that time carrying out experimental work on X-rays and this proved a considerable interest to de Broglie during the first few years of the 1920s during which he worked for his doctorate (O’Connor & Robertson).
		De Broglie's doctoral thesis of 1924 put forward this theory of electron waves, based on the work of Einstein and Planck.
		The central question in de Broglie's life was whether the statistical nature of atomic physics reflects an ignorance of the underlying theory or whether statistics is all that can be known (Rueff).
	home.earthlink.net /~gurkha711/debroglie.doc (810 words)

	Louis Victor Pierre Raymond duc de Broglie (Site not responding. Last check: 2007-10-22)
		De Broglie was best known for his particle-wave duality theory that matter has the properties of both particles and waves.
		De Broglie's theory of electron matter waves was later used by Schrödinger to develop wave mechanics.
		The central question in de Broglie's life was whether the statistical nature of atomic physics reflects an ignorance of the underlying theory or whether statistics is all that can be known.
	uk.geocities.com /magoos_universe/broglie.htm (427 words)

	Prince Louis de Broglie (Site not responding. Last check: 2007-10-22)
		Thesis, Louis de Broglie (he was of the French aristocracy - hence the title "Prince") argued that since light could be seen to behave under some conditions as particles (photoelectric effect) and other times as waves (diffraction), we can also consider that matter has the same ambiguity of possessing both particle and wave properties.
		de Broglie suggested that when an electron is confined in an atom, its wave properties are quantized also.
		de Broglie's leap of faith was in asserting that this same expression should apply to particles.
	www.cobalt.chem.ucalgary.ca /ziegler/educmat/chm386/rudiment/tourquan/broglie.htm (402 words)

	Broglie, Louis Victor de, 7th Duc de Broglie (Site not responding. Last check: 2007-10-22)
		De Broglie's discovery of wave-particle duality enabled physicists to view Einstein's conviction that matter and energy are interconvertible as being fundamental to the structure of matter.
		De Broglie was born in Dieppe and educated at the Sorbonne, where he stayed on until 1928.
		Throughout his life, de Broglie was concerned with the philosophical issues of physics and he was the author of a number of books on this subject.
	www.cartage.org.lb /en/themes/Biographies/MainBiographies/B/Broglie/1.html (222 words)

	Maurice DeBroglie Biography (Site not responding. Last check: 2007-10-22)
		Louis-César-Victor-Maurice de Broglie, known as Maurice, was a distinguished physicist who made many contributions to the study of X-rays.
		This was the first observation of an absorption edge (de Broglie, 1913), though some further experiments were required to correctly interpret the absorption edges.
		Maurice thus set a precedent of scientific work in the de Broglie family, which was followed by his younger brother, Louis (born in 1892, seventeen years after Maurice).
	www.todayinsci.com /D/DeBroglie_Maurice/DeBroglieMauriceBio.htm (957 words)

	MSN Encarta - Search Results - Louis de Broglie (Site not responding. Last check: 2007-10-22)
		Broglie, Louis Victor, Prince de (1892-1987), French physicist and Nobel laureate, who made major contributions to the theory of quantum mechanics...
		Louis de Buade, Comte de Palluau et de Frontenac
		Portrait of Louis XIII by Philippe de Champaigne
	ca.encarta.msn.com /Louis_de_Broglie.html (144 words)

	Isis Abstracts: Vol. 88, No. 3 (Site not responding. Last check: 2007-10-22)
		Louis de Broglie received the Nobel Prize in Physics in 1929 following experimental confirmation of his theory of the wave properties of the electron.
		De Broglie was an anomaly among twentieth-century physicists: he was a prince by birth who would become the seventh duc de Broglie.
		This essay explores aristocratic culture in France in the early twentieth century and examines the family life, education, scientific practices, and social values of Louis de Broglie, his brother Maurice, who was a distinguished experimental physicist, and their sister Pauline, who became a well-known novelist and literary scholar after her scientifc interests were discouraged.
	www.journals.uchicago.edu /Isis/abstracts/883nye.html (113 words)

	Quantum Physics: Louis de Broglie: Confirming de Broglie's Matter Waves / WaveLength of Quantum Physics Biography
		Louis de Broglie's realization that standing waves exist at discrete frequencies and thus energies is obviously true and important to Quantum Mechanics, yet he continued with the error of the particle concept and thus imagined particles moving in a wavelike manner!
		Louis de Broglie had originally intended a career as a humanist, and received his first degree in history.
		De Broglie noted that relativity theory predicts that, when such a particle is set in motion, its total relativistic energy will increase, tending to infinity as the speed of light is approached.
	www.spaceandmotion.com /Physics-Louis-de-Broglie.htm (4106 words)

	Wave Mechanics; Prince Louis de Broglie
		De Broglie presented a more detailed exposition of the ideas contained in his 1923 note in the first chapter of his doctoral thesis Recherches sur la théorie des Quanta (University of Paris, 1924).
		A consequence of de Broglie's reasoning is that a phase wave, often referred to as the "pilot" wave, appears to accompany the particle.
		Given de Broglie's assumptions, quantum mechanics, which is to say the study of the behavior and interpretation of the phase wave, is the study of an inherently relativistic phenomenon.
	www.davis-inc.com /physics (869 words)

	Louis, 7th duc de Broglie - Wikipedia, the free encyclopedia
		When he died in Louveciennes (Yvelines), he was succeeded as duke by a distant cousin, Victor-François, 8th duc de Broglie.
		Note: in French "de Broglie" is pronounced [dœ bʀœj], which sounds close to "de Broy".
		Recherches sur la théorie des quanta (Researches on the quantum theory), Thesis, Paris, 1924.
	en.wikipedia.org /wiki/Louis-Victor_de_Broglie (703 words)

	Broglie on Encyclopedia.com (Site not responding. Last check: 2007-10-22)
		King Louis XV conferred on him the ducal title inherited by his son Victor François, duc de Broglie, 1718-1804, marshal of France, who distinguished himself in the War of the Austrian Succession and the Seven Years War.
		Charles François, comte de Broglie, 1719-81, brother of Victor François, was ambassador to Poland (1752) and later headed the “secret cabinet” of Louis XV, the king's secret organization of political advisers and spies.
		Achille Charles Léon Victor, duc de Broglie, 1785-1870, grandson of Victor François, was a statesman and diplomat under Emperor Napoleon I and a leader of the moderate liberals after the Restoration.
	www.encyclopedia.com /html/b/broglie-fam.asp (615 words)

	Planck, Einstein, and de Broglie
		Louis de Broglie proposed that Planck's energy-frequency relationship be extended to all kinds of particles.
		De Broglie's hypothesis was inspired by the fact that wave frequency and wavenumber are components of the same four-vector according to the theory of relativity, and are therefore closely related to each other.
		Planck, Einstein, and de Broglie had extensive backgrounds in classical mechanics, in which the concepts of energy, momentum, and mass have precise meaning.
	www.physics.nmt.edu /~raymond/classes/ph13xbook/node73.html (503 words)

	Matter Waves
		An alternative picture began to emerge in the 1920's when Louis de Broglie suggested in his doctoral thesis (1923) that, just as electromagnetic radiation can have both wave and particle properties, the components of matter may have a wavelike as well as a particle-like character.
		Louis de Broglie was born into an aristocratic family and began to study history (at the Sorbonne in Paris) as preparation for a career in diplomacy.
		Louis de Broglie had suggested that a stream of electrons passing through a narrow aperture should exhibit measurable diffraction effects and Einstein predicted (in 1925) that a beam of atoms should behave similarly.
	laser.phys.ualberta.ca /~egerton/dbroglie.htm (1735 words)

	Broglie, Louis-Victor (-Pierre-Raymond), 7{sup e} duc de
		In choosing science as a profession, Louis de Broglie broke with family tradition, as had his brother Maurice (from whom, after his death, Louis inherited the title of duc).
		A wave confined within boundaries imposed by the nuclear charge would be restricted in shape and, thus, in motion, for any wave shape that did not fit within the atomic boundaries would interfere with itself and be canceled out.
		The first publications of Broglie's idea of "matter waves" had drawn little attention from other physicists, but a copy of his doctoral thesis chanced to reach Albert Einstein, whose response was enthusiastic.
	www.phy.bg.ac.yu /web_projects/giants/de_broglie.html (933 words)

	The Wave Nature of Matter
		At first, de Broglie had no idea what he meant by matter being waves, either; it was just a mathematical construct that unexpectedly turned out to be very helpful.
		What de Broglie did was to assume that any particle--an electron, an atom, a bowling ball, whatever--had a "wavelength" that was equal to Planck's constant divided by its momentum...
		According to de Broglie, the wavelength is equal to Planck's constant divided by the object's momentum; Planck's constant is very, very, very tiny, and the momentum of a bowling ball, relatively speaking, is huge.
	www.colorado.edu /physics/2000/quantumzone/debroglie.html (1020 words)

	[No title]
		Louis de Broglie (born 1892) became interested in quantum theory while he was a student of history at the University of Paris.
		Similar situation was in the contacts or rather in the lack of contacts with Göttingen and Munich. Louis de Broglie was invited by Lorentz to give a lecture on wave mechanics and its interpretation at the Solvay Congress of 1927.
		Einstein alone gave him slight encouragement by approving of the direction of de Broglie's research in his outline of the interpretation problems of the wave function.
	hps.elte.hu /~szegedi/cikkek/loser.doc (2722 words)

	Louis de Broglie - Biography
		Prince Louis-Victor de Broglie of the French Academy, Permanent Secretary of the Academy of Sciences, and Professor at the Faculty of Sciences at Paris University, was born at Dieppe (Seine Inférieure) on 15th August, 1892, the son of Victor, Duc de Broglie and Pauline d'Armaillé.
		The incumbent of the chair of theoretical physics at the Faculty of Sciences at the University of Paris since 1932, Louis de Broglie runs a course on a different subject each year at the Institut Henri Poincaré, and several of these courses have been published.
		After crowning Louis de Broglie's work on two occasions, the Academie des Sciences awarded him in 1929 the Henri Poincaré medal (awarded for the first time), then in 1932, the Albert I of Monaco prize.
	nobelprize.org /physics/laureates/1929/broglie-bio.html (888 words)

	Broglie, Louis de (Site not responding. Last check: 2007-10-22)
		English] Title Heisenberg's uncertainties and the probabilistic interpretation of wave mechanics : with critical notes of the author / by Louis de Broglie ; with a foreword by Asim Barut ; preface and supplementary notes by Georges Lochak ; translated by Alwyn van der Merwe.
		Series Fundamental theories of physics ISBN 9027716641 Language English Note Proceedings of an international symposium sponsored by the Louis de Broglie Foundation and the University of Perugia, and held in Perugia, Apr. 22-30, 1982.
		A tribute to Professor Louis de Broglie, Nobel laureate, on the 50th anniversary of the discovery of the wave nature of the electron.
	www.geocities.com /paultabaka/broglie.html (1724 words)

	de Broglie wave -- Encyclopædia Britannica
		By analogy with the wave and particle behaviour of light that had already been established experimentally, the French physicist Louis de Broglie suggested (1924) that particles might have wave properties in addition...
		In 1923, about two decades after the discovery that what had been regarded as waves exhibited properties of particles, Louis de Broglie advanced the hypothesis that the converse might also be true, that what had been regarded as particles might exhibit the properties of waves.
		In 1924 the French physicist Louis de Broglie suggested that electron beams might be regarded as a form of wave motion, similar to light.
	www.britannica.com /eb/article-9029586?tocId=9029586 (821 words)

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