The Langevin family is a French family with some prominent scientists. French psychiatrist

Philippe Pinel Philippe Pinel (; 20 April 1745 – 25 October 1826) was a French physician, precursor of psychiatry and incidentally a zoologist. He was instrumental in the development of a more humane psychological approach to the custody and care of ps ...

, and French physicist

Paul Langevin Paul Langevin (; ; 23 January 1872 – 19 December 1946) was a French physicist who developed Langevin dynamics and the Langevin equation. He was one of the founders of the ''Comité de vigilance des intellectuels antifascistes'', an ant ...

, both members of the

French Academy of Sciences The French Academy of Sciences (French: ''Académie des sciences'') is a learned society, founded in 1666 by Louis XIV of France, Louis XIV at the suggestion of Jean-Baptiste Colbert, to encourage and protect the spirit of French Scientific me ...

, are the most prominent members.

Genealogy

(1745–1826),

psychiatrist A psychiatrist is a physician who specializes in psychiatry, the branch of medicine devoted to the diagnosis, prevention, study, and treatment of mental disorders. Psychiatrists are physicians and evaluate patients to determine whether their sy ...

** Louis Pinel, French soldier and Chinese general, son of Léon Pinel, grand-nephew of Philippe Pinel ** Marie-Adélaïde Pinel, teacher, daughter of Léon Pinel, grand-niece of Philippe Pinel x Victor-Charles Langevin, son of Joseph Langevin and Marie-Louise Maillet *** Victor Langevin *** Julien Langevin, wine salesman ***

(1872–1946),

physicist A physicist is a scientist who specializes in the field of physics, which encompasses the interactions of matter and energy at all length and time scales in the physical universe. Physicists generally are interested in the root or ultimate caus ...

, teacher at

Collège de France The Collège de France (), formerly known as the ''Collège Royal'' or as the ''Collège impérial'' founded in 1530 by François I, is a higher education and research establishment ('' grand établissement'') in France. It is located in Paris n ...

x Jeanne Desfosses, whose nephew was producer Pierre Bourgeois **** Jean Langevin (1899–1979),

x Edwige ''Vige'' Grandjouan, artist and teacher, daughter of Jules Grandjouan (1875–1968), artist, journalist, activist ***** Bernard ''Tiapa'' Langevin, mountain guide x Claire Chavannes, daughter of Fernand Chavannes and granddaughter of

Édouard Chavannes Émmanuel-Édouard Chavannes (5 October 1865 – 29 January 1918) was a French sinologist and expert on Chinese history and religion, and is best known for his translations of major segments of Sima Qian's ''Records of the Grand Historian' ...

(1865–1918),

archeologist Archaeology or archeology is the scientific study of human activity through the recovery and analysis of material culture. The archaeological record consists of Artifact (archaeology), artifacts, architecture, biofact (archaeology), biofacts ...

and

sinologist Sinology, or Chinese studies, is an academic discipline that focuses on the study of China primarily through Chinese philosophy, language, literature, culture and history and often refers to Western scholarship. Its origin "may be traced to the ex ...

, then X Annette Mirel, sociologist ****** Rémi Langevin (born 1950), mathematician,

topologist In mathematics, topology (from the Greek words , and ) is concerned with the properties of a geometric object that are preserved under continuous deformations, such as stretching, twisting, crumpling, and bending; that is, without closing h ...

geometer A geometer is a mathematician whose area of study is geometry. Some notable geometers and their main fields of work, chronologically listed, are: 1000 BCE to 1 BCE * Baudhayana (fl. c. 800 BC) – Euclidean geometry, geometric algebra * ...

****** Fanny Langevin, chemical engineer ***** Sylvestre ''Sylvio'' Langevin, naval architect x Annick Balaresque, artist ****** Églantine Langevin ****** Erwan Langevin ***** Noémie Koechlin, born Langevin,

biologist A biologist is a scientist who conducts research in biology. Biologists are interested in studying life on Earth, whether it is an individual Cell (biology), cell, a multicellular organism, or a Community (ecology), community of Biological inter ...

x Yves Koechlin,

, son of Charles Koechlin (1867–1950), composer ****** Marianne Koechlin, ceramist ****** Laurent Koechlin, astrophysicist **** André Langevin (1901–1977),

x Luce Langevin (1899–2002),

, teacher, activist ***** Aline Langevin, english teacher x

Roger Dajoz Roger Dajoz (22 August 1929 - 2019) was a French biologist, ecologist and entomologist, former student of the Ecole Normale Supérieure and a teacher at the Museum national d'histoire naturelle in Paris. Biography He published a lot of books ...

, biologist ****** Hélène Dajoz, mathematics teacher ****** Isabelle Dajoz, biologist ***** Michel Langevin (1926–1985),

, activist x Hélène Langevin-Joliot,

, daughter of Frederic Joliot (1900–1958),

, and Irene Curie (1897–1956),

****** Françoise Langevin ****** Yves Langevin (born 1951), astrophysicist **** Madeleine Langevin (1902–1977) x Albert Varloteau, ceramist and unionist ***** Jacques Varloteau, teacher x Béatrice Thuillier ****** Claire Varloteau ****** Lise Varloteau ****** Anne Varloteau **** Hélène Solomon-Langevin (1909–1995),

deputy Deputy or depute may refer to: * Steward (office) * Khalifa, an Arabic title that can signify "deputy" * Deputy (legislator), a legislator in many countries and regions, including: ** A member of a Chamber of Deputies, for example in Italy, Spai ...

, resistant x

Jacques Solomon Jacques Solomon (4 February 1908 – 23 May 1942) was a French physicist and Marxist who played a central role in the debate over quantum mechanics in France in the 1930s and 1940s. He was killed by firing squad at Fort Mont-Valérien in 1942. Ear ...

(1908–1942),

, then x André Parreaux, historian ***

x Eliane Montel (1898–1992),

****

Paul-Gilbert Langevin Paul-Gilbert Langevin ( Boulogne-Billancourt, 5 July 1933 – Paris, 4 July 1986) was a French musicologist, who was a specialist on Anton Bruckner, Franz Schubert and 19th-century classical music. History Paul-Gilbert Langevin was the son of ...

(1933–1986),

musicologist Musicology (from Greek μουσική ''mousikē'' 'music' and -λογια ''-logia'', 'domain of study') is the scholarly analysis and research-based study of music. Musicology departments traditionally belong to the humanities, although some mu ...

x Anne-Marie Desbat (1941–2016), physics teacher ***** Paul-Éric Langevin (born 1979), linguist and transcriber ***** Isabelle Langevin (born 1983), physiotherapist

Langevin family tree

Photographs

File:Paul Langevin. Photograph by Henri Manuel. Wellcome V0028151.jpg,

, photograph by

Henri Manuel Henri Manuel (24 April 1874 – 11 September 1947) was a French photographer who served as the official photographer of the French government from 1914 to 1944. Photography studio In 1900, Manuel opened a portrait studio in Paris with his br ...

. File:EinsteinEhrenfestKamerlingh-OnnesWeiss.jpg,

Albert Einstein Albert Einstein ( ; ; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist, widely acknowledged to be one of the greatest and most influential physicists of all time. Einstein is best known for developing the theory ...

Paul Ehrenfest Paul Ehrenfest (18 January 1880 – 25 September 1933) was an Austrian theoretical physicist, who made major contributions to the field of statistical mechanics and its relations with quantum mechanics, including the theory of phase transition a ...

, Paul Langevin,

Heike Kamerlingh Onnes Heike Kamerlingh Onnes (21 September 1853 – 21 February 1926) was a Dutch physicist and Nobel laureate. He exploited the Hampson–Linde cycle to investigate how materials behave when cooled to nearly absolute zero and later to liquefy heliu ...

and

Pierre Weiss Pierre-Ernest Weiss (25 March 1865, Mulhouse – 24 October 1940, Lyon) was a French physicist who specialized in magnetism. He developed the domain theory of ferromagnetism in 1907. Weiss domains and the Weiss magneton are named after him ...

, in Leyde in 1920. File:Lunch in honour of Albert Einstein, with (front row) Langevi Wellcome V0028220.jpg, Lunch in honour of Albert Einstein, circa 1923, including Paul Langevin, Albert Einstein,

Anna de Noailles Anna, Comtesse Mathieu de Noailles (Anna Elisabeth Bibesco-Bassaraba de Brancovan) (15 November 1876 – 30 April 1933) was a French writer of Romanian and Greek descent, a poet and a socialist feminist. Biography Personal life Born Princess ...

Paul Painlevé Paul Painlevé (; 5 December 1863 – 29 October 1933) was a French mathematician and statesman. He served twice as Prime Minister of the Third Republic: 12 September – 13 November 1917 and 17 April – 22 November 1925. His entry into politic ...

Paul Appell Paul may refer to: *Paul (given name), a given name (includes a list of people with that name) *Paul (surname), a list of people People Christianity * Paul the Apostle (AD c.5–c.64/65), also known as Saul of Tarsus or Saint Paul, early Chri ...

Émile Borel Félix Édouard Justin Émile Borel (; 7 January 1871 – 3 February 1956) was a French mathematician and politician. As a mathematician, he was known for his founding work in the areas of measure theory and probability. Biography Borel was ...

. File:1911 Solvay conference.jpg, The first

Solvay Conference The Solvay Conferences (french: Conseils Solvay) have been devoted to outstanding preeminent open problems in both physics and chemistry. They began with the historic invitation-only 1911 Solvay Conference on Physics, considered a turning point i ...

in 1911, Paul Langevin is the first standing on the right, next to Albert Einstein.

External links

* * (translated by J. B. Sykes, 1973 from the original French:
L'évolution de l'espace et du temps"
.

by Michel Barran. * * *

Charles Coulston Gillispie Charles Coulston Gillispie (; August 6, 1918 – October 6, 2015) was an American historian of science. He was the Dayton-Stockton Professor of History of Science, Emeritus at Princeton University. He was succeeded by Arno J. Mayer. Life The son ...

, ''Dictionary of scientific biography'', Vol. 8, biography written by

Francis Perrin Francis Perrin may refer to: * Francis Perrin (actor) (born 1947), French actor, screenwriter and director * Francis Perrin (physicist) (1901–1992), French physicist See also

* Perrin (disambiguation) {{hndis, Perrin, Francis ...

, New York, Scribner's sons, 1973.
Family of Paul Langevin
during the funeral, listening to Education minister Marcel Naegelen's talk, 21 December 1946 in France.
Family of Paul Langevin

Maurice Thorez Maurice Thorez (; 28 April 1900 – 11 July 1964) was a French politician and longtime leader of the French Communist Party (PCF) from 1930 until his death. He also served as Deputy Prime Minister of France from 1946 to 1947. Pre-War Thorez, ...

and Jacques Duclos, during the funeral, 21 December 1946 in France. * *{{wikisource author-inline, Paul Langevin French families Scientific families