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221pp , ABOUT THE AUTHORS :: Leopold Infeld ( August 20, 1898 , Krakow January 15, 1968 , Warsaw ) was a Polish physicist who worked mainly in Poland and Canada (1938 1950). He was professor at the University of Cambridge (1933 1934) and member of the Polish Academy of Sciences . Born into a family of Polish Jews of Krakow, then part of the Austro - Hungarian Empire and from 1918 part of present-day Poland . Studied physics at the Jagiellonian University where he earned his doctorate in 1921. He was interested in the theory of relativity , having worked with Albert Einstein at Princeton University (1936 1938 ) , with which cooperate in the formulation of the equations describing the motion of the stars. He also worked as an assistant and lecturer at the University of Lviv (1930 1933 ) and the University of Toronto from 1939 to 1950. After the first attacks with nuclear weapons in 1945 , Infeld , like Einstein, became an activist for peace. Because of their activities was unjustly accused of sympathizing with communism. In 1950 he left Canada to return to communist Poland in order to help improve science in their home country , devastated by World War II . In the harsh anti -communist times, the media and some politicians feared Canada , working in a communist country , could reveal secrets related to nuclear weapons weather. Therefore , he retired Canadian citizenship and was accused of treason . Actually , Infeld had specialized in aspects of the theory of relativity not directly related to nuclear weapons research . After his return to Poland , Infeld requested a temporary leave the University of Toronto , but being denied had to resign his professorship . In 1995 , the University of Toronto recognized him posthumously with the title of professor emeritus . Once in Poland, Infeld worked as a professor at the University of Warsaw , since where he remained until his death in 1968. In 1955 , Infeld was one of the signatories eleven Russell-Einstein Man
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Book Description Salvat, España, 1986. Tapa Blanda. Condition: Bien. 8434583976|Salvat|España|1986|18x13cm.|221pp.|Tapa blanda|Estado=Bien|Leves señales de uso en cubiertas. Puntos de óxido y manchas en cortes. Seller Inventory # 50490