Einstein

Albert Einstein
Albert Einstein in 1921
Born	(1879-03-14)14 March 1879 Ulm, Kingdom of Württemberg, German Empire
Died	18 April 1955(1955-04-18) (aged 76) Princeton, New Jersey, U.S.
Residence	Germany, Italy, Switzerland, Austria (present-day Czech Republic), Belgium, United States
Citizenship	Subject of the Kingdom of Württemberg during the German Empire (1879–1896) Stateless (1896–1901) Citizen of Switzerland (1901–1955) Austrian subject of the Austro-Hungarian Empire (1911–1912) Subject of the Kingdom of Prussia during the German Empire (1914–1918) German citizen of the Free State of Prussia (Weimar Republic, 1918–1933) Citizen of the United States (1940–1955)
Fields	Physics, philosophy
Institutions	Swiss Patent Office (Bern) (1902–1909) University of Bern (1908–1909) University of Zurich (1909–1911) Charles University in Prague (1911–1912) ETH Zurich (1912–1914) Prussian Academy of Sciences (1914–1933) Humboldt University of Berlin (1914–1917) Kaiser Wilhelm Institute (director, 1917–1933) German Physical Society (president, 1916–1918) Leiden University (visits, 1920) Institute for Advanced Study (1933–1955) Caltech (visits, 1931–1933)
Education	Swiss Federal Polytechnic (1896–1900; B.A., 1900) University of Zurich (Ph.D., 1905)
Thesis	Eine neue Bestimmung der Moleküldimensionen (A New Determination of Molecular Dimensions) (1905)
Doctoral advisor	Alfred Kleiner
Other academic advisors	Heinrich Friedrich Weber
Known for	General relativity and special relativity Photoelectric effect E=mc2 Theory of Brownian motion Einstein field equations Bose–Einstein statistics Bose–Einstein condensate Gravitational wave Cosmological constant Unified field theory EPR paradox
Influenced	Ernst G. Straus Nathan Rosen Leó Szilárd
Notable awards	Barnard Medal (1920) Nobel Prize in Physics (1921) Matteucci Medal (1921) ForMemRS (1921) Copley Medal (1925) Gold Medal of the Royal Astronomical Society (1926) Max Planck Medal (1929) Time Person of the Century (1999)
Spouse	Mileva Marić (1903–1919) Elsa Löwenthal (1919–1936)
Children	"Lieserl" (1902–1903?) Hans Albert (1904–1973) Eduard "Tete" (1910–1965)
Signature

Albert Einstein (/ˈaɪnstaɪn/;German: [ˈalbɛɐ̯t ˈaɪnʃtaɪn]; 14 March 1879 – 18 April 1955) was a German-born theoretical physicist. He developed the theory of relativity, one of the two pillars of modern physics (alongside quantum mechanics). Einstein's work is also known for its influence on the philosophy of science. Einstein is best known in popular culture for his mass–energy equivalence formula E = mc² (which has been dubbed "the world's most famous equation"). He received the 1921 Nobel Prize in Physics "for his services to theoretical physics, and especially for his discovery of the law of the photoelectric effect", a pivotal step in the evolution of quantum theory.

Near the beginning of his career, Einstein thought that Newtonian mechanics was no longer enough to reconcile the laws of classical mechanics with the laws of the electromagnetic field. This led him to develop his special theory of relativity. He realized, however, that the principle of relativity could also be extended to gravitational fields, and with his subsequent theory of gravitation in 1916, he published a paper on general relativity. He continued to deal with problems of statistical mechanics and quantum theory, which led to his explanations of particle theory and the motion of molecules. He also investigated the thermal properties of light which laid the foundation of the photon theory of light. In 1917, Einstein applied the general theory of relativity to model the large-scale structure of the universe.