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Portrait de Albert Einstein

Albert Einstein

Albert Einstein

1879 — 1955

États-Unis, Suisse, Allemagne, république de Weimar, Royaume du Wurtemberg, apatride, Cisleithanie

SciencesScientifiqueMathématicien(ne)19th Century19th–20th centuries (1879–1955)

German-born physicist who became Swiss and later American (1879–1955), Albert Einstein revolutionized physics by developing the theories of special and general relativity. He is the author of the famous equation E=mc² and received the Nobel Prize in Physics in 1921 for his work on the photoelectric effect.

Émotions disponibles (6)

N

Neutre

par défaut

I

Inspiré

P

Pensif

S

Surpris

T

Triste

F

Fier

Famous Quotes

« Imagination is more important than knowledge. Knowledge is limited, imagination encircles the world. »
« Life is like riding a bicycle. To keep your balance, you must keep moving. »

Key Facts

  • 1905: publication of four groundbreaking papers, including the one on special relativity and the equation E=mc²
  • 1915: completion of the general theory of relativity, which redefined gravitation
  • 1921: awarded the Nobel Prize in Physics for his explanation of the photoelectric effect
  • 1933: fled to America in the face of the rising Nazi regime in Germany
  • 1939: played a role in alerting the United States to the risk of a German atomic bomb

Works & Achievements

Special theory of relativity (1905)

Einstein publishes his revolutionary theory showing that space and time are relative and interdependent. This theory introduces the fundamental concept that the speed of light is constant in all inertial frames of reference.

Equation E=mc² (1905)

Einstein derives this famous equation establishing the equivalence between mass and energy. It revolutionizes our understanding of physics and becomes a universal symbol of modern science.

General theory of relativity (1915)

Einstein develops his major theory of gravitation, describing gravity as a curvature of spacetime caused by mass. This theory transforms the understanding of the universe and replaces Newtonian mechanics.

Explanation of the photoelectric effect (1905)

Einstein provides a quantum explanation of the photoelectric effect, demonstrating that light behaves as particles called photons. This discovery earns him the Nobel Prize in Physics in 1921.

Contribution to quantum theory (1906-1920s)

Einstein contributes to the development of quantum mechanics, notably by developing the concept of photons and working on the wave-particle duality of light.

Letter to Franklin D. Roosevelt (1939)

Einstein writes a crucial letter to the American president warning of the risks of a German atomic bomb and recommending American research in nuclear physics, indirectly influencing the Manhattan Project.

Russell-Einstein Manifesto (1955)

Einstein co-signs this manifesto calling for nuclear disarmament and world peace, rallying the international scientific community against the atomic threat shortly before his death.

Anecdotes

In 1905, at just 26 years old, Albert Einstein was working as a clerk at the Patent Office in Bern, Switzerland. It was in this small office, far from prestigious universities, that he wrote four revolutionary papers that upended physics, including the one on special relativity. That year became famous under the name 'annus mirabilis' (miraculous year) and marked the beginning of his worldwide recognition.

Albert Einstein was known for his love of music and played the violin regularly from childhood. He claimed that music and physics were intimately linked in his mind, and he often played the violin while reflecting on complex scientific problems. The instrument became one of his most faithful companions throughout his life.

When the Nazi regime came to power in 1933, Einstein, who was Jewish, left Germany for good. He settled in the United States and worked at the Institute for Advanced Study in Princeton, New Jersey. Shortly before, the Nazi government had burned his books and announced a reward for his arrest.

In 1939, Einstein wrote a letter to U.S. President Franklin D. Roosevelt warning him that Nazi Germany might be developing an atomic bomb. This letter was one of the reasons that pushed the United States to launch the Manhattan Project, the secret nuclear research program. Later in his life, Einstein expressed regret over the indirect role he had played in the creation of nuclear weapons.

Albert Einstein was a committed political thinker who championed pacifism and civil rights. After World War II, he actively campaigned against the nuclear arms race and became one of the leading voices of the global disarmament movement. His moral engagement extended well beyond his scientific field and made him an iconic figure of the 20th century.

Primary Sources

On the Electrodynamics of Moving Bodies (Zur Elektrodynamik bewegter Körper) (1905)
The laws by which the states of physical systems change do not depend on whether these changes of state are referred to one or the other of two coordinate systems in uniform translatory motion relative to each other.
General Relativity (Die Feldgleichungen der Gravitation) (1915)
Matter tells space how to curve; space tells matter how to move.
Letter to Franklin D. Roosevelt (1939)
It has become conceivable that heavy elements may be broken down by neutron bombardment and that this process could be made into a chain reaction... This could also lead to the construction of extremely powerful bombs.
E=mc² (excerpt from "Does the Inertia of a Body Depend Upon Its Energy Content?") (1905)
If a body gives off energy L in the form of radiation, its mass diminishes by L/c². The fact that the energy radiated comes from matter shows us that matter possesses an extraordinary capacity for energy transformation.
The Princeton Address on Education (Education and the Crisis of Man) (1936)
The school should seek to develop in each young person a love of truth and independence of thought, rather than the mere accumulation of knowledge.

Key Places

Ulm

German city where Albert Einstein was born on March 14, 1879. His birth house has been turned into a museum dedicated to his life and scientific discoveries.

Munich

Bavarian capital where Einstein grew up and completed his secondary education before leaving Germany in 1895. The city hosted his early years of intellectual formation.

Zurich

Swiss city where Einstein studied at the Federal Polytechnic School and obtained Swiss citizenship. It is here that he pursued his research in theoretical physics and met his future colleagues.

Bern

Swiss capital where Einstein worked at the Federal Office of Intellectual Property (1902–1909). During this period, he developed the special theory of relativity in 1905.

Berlin

German city where Einstein served as director of the Kaiser Wilhelm Institute of Physics from 1914 to 1933. It is there that he completed his work on general relativity in 1915.

Princeton

City in New Jersey, United States, where Einstein settled in 1933 and worked at the Institute for Advanced Study until his death in 1955. He continued his research there and obtained American citizenship.

Typical Objects

Blackboard with equations

Symbol of Einstein's teaching and theoretical research. The physicist regularly used blackboards to develop his complex relativity equations and explain them to his students.

Characteristic disheveled hair

Einstein's distinctive and emblematic hairstyle, which became iconic in the 20th century. This unconventional appearance reflects the image of the eccentric and brilliant scientist of the early 20th century.

Pipe

A personal accessory closely associated with Einstein, who smoked it regularly. The pipe was a common attribute among intellectuals and scholars of his era.

Equation E=mc²

The most famous equation in modern physics and the ultimate symbol of Einstein's genius. It establishes the equivalence between mass and energy and revolutionized our understanding of the universe.

Optical telescope

An astronomical observation instrument representative of the theoretical and observational physics of the early 20th century. Einstein's work on general relativity was validated through astronomical observations.

Nobel Prize medal

The distinction awarded to Einstein in 1921 for his exceptional contribution to physics, particularly his work on the photoelectric effect. It symbolizes the international recognition of his discoveries.

Scientific notebook

A specimen of the notebooks and manuscripts in which Einstein developed his revolutionary theories. These documents reveal the intellectual creative process of the scientist.

Camera

Representative of the technological advances of the early 20th century and of scientific documentation. Photographs of Einstein and his experiments illustrate the contemporary era of his discoveries.

School Curriculum

Cycle 4 (5e-3e)Physique-Chimie
LycéePhysique-Chimie
LycéePhysique-Chimie — Relativité restreinte et dilatation du temps
LycéePhysique-Chimie — Équivalence masse-énergie (E=mc²)
LycéePhysique-Chimie — Effet photoélectrique et dualité onde-corpuscule
LycéePhysique-Chimie — Relativité générale et courbure de l'espace-temps
LycéePhysique-Chimie — Histoire de la physique moderne (XXe siècle)
LycéePhysique-Chimie — Contributions à la compréhension de l'univers et de la matière

Vocabulary & Tags

Key Vocabulary

special relativitygeneral relativityspacetimephotonmass-energy equivalencegravitationgravitational field

Tags

Albert Einsteinseconde-guerre-mondialeSeconde Guerre mondialerelativité restreinterelativité généraleespace-tempsphotonéquivalence masse-énergiegravitationchamp gravitationnelXIXe-XXe siècles (1879-1955)

Daily Life

Morning

Einstein generally wakes up around 7-8 AM and has a light breakfast of coffee and bread. He devotes the first hours of the day to theoretical thinking, often smoking his characteristic pipe during this period when his mind is freshest for tackling complex physics problems.

Afternoon

In the afternoon, he goes to his office or laboratory at the university (at Princeton after 1933), where he discusses ideas with colleagues and collaborators. He attends seminars, reviews student work, and continues his personal research, interspersed with breaks for stimulating conversations.

Evening

At the end of the day, Einstein unwinds by playing the violin — an instrument he has been deeply attached to since childhood — or by going for walks. He usually dines with family or intellectual friends, enjoying conversations on physics, philosophy, and contemporary social issues.

Food

Einstein follows a diet typical of the upper-middle class of the 1900s–1950s: bread, cheese, fruits, vegetables, occasional meat, and plenty of coffee. After his arrival in the United States, his eating habits become more Americanized while retaining his preference for simple, moderate food.

Clothing

Einstein is famous for his disheveled appearance: a dark suit often ill-fitting, wild uncombed hair, and a thick mustache. He shows little interest in fashion or formal appearance, which stood in contrast to the conventions of the academic circles of his time.

Housing

After modest beginnings, Einstein lives in comfortable apartments as a university professor, then in a respectable house in Princeton, New Jersey, after 1933. His interior is filled with books, scientific documents, and a few works of art, reflecting his intellectual priorities rather than ostentatious comfort.

Historical Timeline

1879Naissance d'Albert Einstein Ă  Ulm, en Allemagne.
1894Les Lumière inventent le cinématographe et présentent le premier film public.
1900Einstein obtient son diplôme à l'École polytechnique fédérale de Zurich.
1905Einstein publie quatre articles révolutionnaires, dont celui sur la relativité restreinte et l'équation E=mc².
1909Louis Blériot effectue la première traversée aérienne de la Manche.
1911Einstein devient professeur à l'université allemande de Prague.
1914Début de la Première Guerre mondiale; Einstein signe un manifeste pacifiste.
1915Einstein présente sa théorie de la relativité générale, révolutionnant notre compréhension de la gravité.
1919Une expédition confirme la relativité générale d'Einstein lors d'une éclipse solaire totale.
1921Einstein reçoit le prix Nobel de physique pour ses travaux sur l'effet photoélectrique.
1933Hitler arrive au pouvoir; Einstein, de confession juive, quitte l'Allemagne pour les États-Unis.
1939Einstein signe une lettre au président Roosevelt avertissant du danger d'une bombe atomique nazie.
1945Fin de la Seconde Guerre mondiale; les bombes atomiques sont larguées sur Hiroshima et Nagasaki.
1950Einstein publie son dernier article scientifique majeur.
1955Décès d'Albert Einstein à Princeton, aux États-Unis, à l'âge de 76 ans.

Period Vocabulary

Special Relativity — Theory developed by Einstein in 1905 explaining that space and time are relative and depend on the observer's motion, challenging Newton's ideas.
General Relativity — Theory published by Einstein in 1915 describing gravity not as a force, but as a curvature of spacetime caused by the presence of mass.
E=mc² — Einstein's famous equation showing the equivalence between energy (E) and mass (m), where c² represents the square of the speed of light.
Photoelectric Effect — Phenomenon whereby light releases electrons from a metal surface, the discovery for which Einstein received the Nobel Prize in 1921.
Quanta — Indivisible small packets of light energy; a fundamental concept of quantum physics developed in the early 20th century.
Newtonian Mechanics — The laws of motion and gravitation formulated by Isaac Newton in the 17th century, which Einstein's theories superseded.
Photon — Elementary particle of light or electromagnetic radiation, a key concept for understanding the photoelectric effect.
Light — In the scientific sense of the early 20th century, an electromagnetic wave also possessing particle properties according to Einstein's work.
Naturalization — Process by which a person acquires the nationality of a country different from their birth country; Einstein was naturalized as Swiss and later American.
Nobel Prize in Physics — International award given annually since 1901 for the greatest discoveries in physics; Einstein received it in 1921.
Spacetime — Concept according to which space and time form an inseparable continuum, fundamental to Einstein's theory of general relativity.
Planck's Constant — Fundamental constant in quantum physics introduced by Max Planck and used by Einstein in his work on the photoelectric effect.

Gallery

Erich BĂĽttner - Portrait of Albert Einstein, 1917

Erich BĂĽttner - Portrait of Albert Einstein, 1917

Emanuel Celler Painting

Emanuel Celler Painting

Einstein Portrait

Einstein Portrait

Solvay conference 1927 Version2

Solvay conference 1927 Version2

Albert Einstein Head cleaned

Albert Einstein Head cleaned

Wax statue-21-mothers wax museum-kolkata-India

Wax statue-21-mothers wax museum-kolkata-India

Statue d'Albert Einstein Ă  Berne, en Suisse

Statue d'Albert Einstein Ă  Berne, en Suisse

Sculpture of Albert Einstein in the hebrew univesity in Jerusalem

Sculpture of Albert Einstein in the hebrew univesity in Jerusalem

Einstein Board-Museum of Science History

Einstein Board-Museum of Science History


Legislative History, Public Law 89-544, H.R. 13881

Legislative History, Public Law 89-544, H.R. 13881

Visual Style

Un style mêlant l'illustration scientifique du début du XXe siècle avec des éléments Art Déco géométriques. L'ambiance combine rigueur technique et poésie cosmique, utilisant des sépia rétro illuminés par des bleus électriques et ors évoquant l'énergie et la lumière.

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AI Prompt
Early 20th century scientific illustration style inspired by physics diagrams and theoretical sketches. Art Deco geometric elements with ethereal, luminous quality. Soft sepia tones merged with electric blues and golds representing energy and light. Technical line drawings combined with watercolor washes. Vintage scientific poster aesthetic with dimensional perspective grids. Chiaroscuro lighting emphasizing cosmic themes, atoms, and light waves. References: vintage physics textbooks, Kandinsky's abstract compositions, and German Expressionist art. Dreamy yet precise, balancing rigorous scientific accuracy with artistic abstraction.

Sound Ambience

Une atmosphère sonore immersive de laboratoire de physique du début du XXe siècle, mêlant les sons discrets d'instruments de précision, les murmures de discussions académiques en allemand, et l'ambiance contemplative d'un lieu de recherche scientifique révolutionnaire.

AI Prompt
Early 20th century physics laboratory ambient soundscape. Soft ticking of precision scientific instruments, gentle hum of electrical equipment, faint crackle of blackboard chalk on slate. Occasional rustling of paper as theoretical equations are written. Distant murmur of academic discussions in German accent, soft footsteps on wooden floors. Subtle background of a European university setting from 1920s-1930s era. Light classical music playing faintly from a gramophone. Gentle wind through open windows, subtle urban sounds of Berlin or Princeton. Thoughtful, intellectual, contemplative atmosphere with occasional pencil scratching and pages turning.

Portrait Source

Wikimedia Commons — domaine public — Oren Jack Turner, Princeton, N — 1947