Albert Einstein

Albert Einstein
Name	Albert Einstein
Caption	Einstein in 1921
Birth date	14 March 1879
Birth place	Ulm, Kingdom of Württemberg, German Empire
Death date	18 April 1955
Death place	Princeton, New Jersey, United States
Nationality	German (1879–1933), Stateless (1933–1940), Swiss (1901–1955), American (1940–1955)
Alma mater	Swiss Federal Polytechnic (ETH Zurich)
Known for	Theory of relativity; Photoelectric effect; Brownian motion
Awards	Nobel Prize in Physics (1921)

Albert Einstein

Albert Einstein was a theoretical physicist whose work reshaped physics and influenced philosophy and technology. He developed the special and general theories of relativity and provided explanations for the photoelectric effect and Brownian motion, profoundly affecting cosmology, quantum mechanics, and statistical mechanics. His public persona connected him with pacifism, Zionism, and scientific humanism across Europe and the United States.

Early life and education

Einstein was born in Ulm in the Kingdom of Württemberg into a Jewish family that later moved to Munich where he attended the Luitpold Gymnasium. He showed early interest in mathematics and science, influenced by texts such as works by Euclid and lectures associated with the Polytechnic. In 1895 he attempted the entrance exam for the Swiss Federal Polytechnic in Zurich and subsequently enrolled, studying under instructors linked to traditions represented by figures like Heinrich Friedrich Weber and peers including Marcel Grossmann. He graduated with a teaching diploma and later worked at the Swiss Patent Office in Bern, while interacting with contemporaries from the Olympia Academy informal circle.

Scientific career and major contributions

While at the Swiss Patent Office, Einstein published in 1905 a cluster of papers in the Annalen der Physik that addressed the photoelectric effect, explained Brownian motion, and introduced the special theory of relativity, challenging Newtonian mechanics and drawing on notions from James Clerk Maxwell's electromagnetism and Hendrik Lorentz's electron theory. In 1915 he completed the general theory of relativity, formulating field equations that generalized Isaac Newton's law of gravitation and predicting phenomena such as gravitational lensing observed in Eddington's 1919 eclipse expedition and later in studies of galaxy clusters. Einstein's work stimulated developments in quantum theory through debates with figures like Niels Bohr and influenced the formulation of Bose–Einstein statistics in collaboration with Satyendra Nath Bose. He addressed unified field pursuits linking gravitation and electromagnetism, engaging with mathematical tools advanced by Bernhard Riemann and Marcel Grossmann, and his ideas fueled research by later scientists including Kaluza, Klein, Schrödinger, Dirac, and Wheeler.

Personal life and relationships

Einstein married Mileva Marić, a fellow student from ETH Zurich, and had children including Hans Albert Einstein and Eduard Einstein; his marital history later included a marriage to Elsa Löwenthal, his cousin. Personal correspondences reveal exchanges with scientists such as Max Planck and Arnold Sommerfeld, cultural figures like Charlie Chaplin, and political leaders including Woodrow Wilson and Franklin D. Roosevelt. His family life intersected with medical and psychological contexts involving institutions in Zurich and Princeton Hospital, and his relationships impacted custody and emigration choices during periods of upheaval in Germany and Europe.

Political views and activism

Einstein advocated for pacifism and internationalism in the aftermath of World War I, aligning with organizations such as the League of Nations's intellectual circles and later supporting civil rights causes in the United States, including collaborations with activists associated with W. E. B. Du Bois and Paul Robeson. He spoke on issues of nationalism during the rise of the Nazi Party and emigrated to the United States where he worked at the Institute for Advanced Study in Princeton, New Jersey. Though a committed pacifist, Einstein signed a letter to Franklin D. Roosevelt urging attention to nuclear chain reactions, which intersected with developments leading to the Manhattan Project; he later campaigned for nuclear disarmament, supported United Nations initiatives, and endorsed aspects of Zionism while critiquing some policies of the Yishuv and later State of Israel leaders.

Later years and legacy

In his later years Einstein continued correspondence and collaboration with scientists such as Leo Szilard, John Archibald Wheeler, and Erwin Schrödinger while pursuing unified field theories and commenting on quantum foundations, famously debating Niels Bohr and articulating thought experiments like the EPR paradox co-authored with Boris Podolsky and Nathan Rosen. His public image became emblematic in media representations alongside figures like Time (magazine) and institutions including the Princeton University Press, influencing popular culture from caricatures to biographies by authors such as Walter Isaacson. Einstein's scientific legacy endures across cosmology—informing models like the Big Bang and black hole research—and in technologies relying on relativistic corrections such as the Global Positioning System.

Honors and recognitions

Einstein received the Nobel Prize in 1921 for the photoelectric effect, honors from academies including the Prussian Academy of Sciences and the Royal Society, and awards such as the Max Planck Medal and memberships in institutions like the National Academy of Sciences and the Académie des Sciences. Universities conferred honorary degrees from entities including Oxford University, University of Paris, and Hebrew University of Jerusalem, and numerous scientific prizes, medals, and eponymous institutions—such as the Einstein Papers Project and various museums—commemorate his impact. Posthumous recognitions include monuments, archives at the Albert Einstein Archives and memorials in Princeton and Ulm.

Category:1879 births Category:1955 deaths Category:German physicists Category:Swiss scientists Category:American physicists