Russian Physicist and Mathematician. He is best known for his pioneering theory that the universe was expanding, governed by a set of equations he developed now known as the Friedmann equations. Alexander Friedmann was born to the composer and ballet dancer Alexander Friedmann (who was a son of a baptized Jewish cantonist) and the pianist Ludmila Ignatievna Voyachek. Friedmann was baptized into the Russian Orthodox Church as an infant, and lived much of his life in Saint Petersburg. Friedmann fought in World War I on behalf of Imperial Russia, as an army aviator, an instructor and eventually, under the revolutionary regime, as the head of an airplane factory. Friedmann became a professor at Perm State University in 1918. Friedmann in 1922 introduced the idea of an expanding universe that contained moving matter; Belgian astronomer Georges Lemaître would later independently reach the same conclusion in 1927. In June 1925 he was given the job of the director of Main Geophysical Observatory in Leningrad. In July 1925 he participated in a record-setting balloon flight, reaching the elevation of 7,400 m (24,300 ft). In 1911, he married Ekaterina Dorofeyeva, though he later divorced her. He married Natalia Malinina in the last years of his life. They had a religious wedding ceremony, though both were far from religious. Friedmann died on September 16, 1925, at the age of 37, from typhoid fever that he contracted while returning from a vacation in Crimea.
Russian Physicist and Mathematician. He is best known for his pioneering theory that the universe was expanding, governed by a set of equations he developed now known as the Friedmann equations. Alexander Friedmann was born to the composer and ballet dancer Alexander Friedmann (who was a son of a baptized Jewish cantonist) and the pianist Ludmila Ignatievna Voyachek. Friedmann was baptized into the Russian Orthodox Church as an infant, and lived much of his life in Saint Petersburg. Friedmann fought in World War I on behalf of Imperial Russia, as an army aviator, an instructor and eventually, under the revolutionary regime, as the head of an airplane factory. Friedmann became a professor at Perm State University in 1918. Friedmann in 1922 introduced the idea of an expanding universe that contained moving matter; Belgian astronomer Georges Lemaître would later independently reach the same conclusion in 1927. In June 1925 he was given the job of the director of Main Geophysical Observatory in Leningrad. In July 1925 he participated in a record-setting balloon flight, reaching the elevation of 7,400 m (24,300 ft). In 1911, he married Ekaterina Dorofeyeva, though he later divorced her. He married Natalia Malinina in the last years of his life. They had a religious wedding ceremony, though both were far from religious. Friedmann died on September 16, 1925, at the age of 37, from typhoid fever that he contracted while returning from a vacation in Crimea.
Bio courtesy of: Wikipedia
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ФРИДМАН
АЛЕКСАНДР
АЛЕКСАНДРОВИЧ
1888 - 1925 ВЫДАЮЩИЙСЯ УЧЕНЫЙ, СОЗДАТЕЛЬ
ТЕОРИИ НЕСТАЦИОНАРНОЙ ВОЕЛЕнной. ВЫПУСКНИК ВТОРОЙ САНКТ-ПЕТЕРБУРТСКОЙ
ГИМНАЗИИ.
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