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Louis Winslow Austin (October 30, 1867 – June 27, 1932) was an American physicist known for his research on long-range radio transmissions. Austin was born in Orwell, Vermont, and educated at Middlebury College (class of 1889) and the University of Strasbourg (then in Germany), from which he received a Ph.D. in 1893. From 1893-1901, he taught physics as an instructor and assistant professor at the University of Wisconsin–Madison, then returned to Germany for two years at the Physikalisch-Technische Reichsanstalt in Berlin where he performed research on hot gases. In 1904 Austin joined the National Bureau of Standards to study radio propagation. After the United States Navy established its Naval Radio Telegraphic Laboratory (later the Naval Research Laboratory) within the bureau, Austin served as its director from 1908–1923, and from 1923-1932 as chief of the Radio Physics Laboratory. Austin's research focused on radio propagation and static, and more specifically the influence of temperature, humidity, magnetic storms, and sunspots on long-range radio transmissions. Under his direction, the Navy conducted long-distance wireless measurements in 1909 and 1910 between the USS Birmingham and USS Salem, as they steamed to Liberia and back, and Fessenden's station at Brant Rock, Massachusetts. Austin measured received impulses from the ships on the 3,750 and 1,000 meter wavelengths to determine the relationships between radio frequency, distance, and received signal strength. These measurements led Austin and collaborator Dr. Louis Cohen to develop the empirical Austin-Cohen formula for predicting radio signal strength at long distances. Austin joined the Institute for Radio Engineers (now IEEE) in 1913, in 1914 served as its third president, and in 1927 received its Medal of Honor "for his pioneer work in the quantitative measurement and correlation of factors involved in radio wave transmission." He also served as a U.S. representative at numerous international radio conferences. Austin died on June 27, 1932, in Washington, D.C. == Personal life == Louis Winslow Austin was born 30 October 1867 at Orwell, Addison Co., Vermont, USA. He was the only child of Lewis Augustine Austin and Mary Louise Austin née Taft. As a child, he lived with his parents at Manchester, Bennington Co., Vermont, USA 1868-1872 and Meriden, Sullivan Co., New Hampshire, USA 1872-1880. He lived at Middleburg, Vermont from 1880-1889. Strassburg, Germany (now France) 1889-1893. Madison, WI, 1893-1901, where he concluded as Assistant Professor of Physics at the University of Wisconsin. He married Laura Osborne (born 10 August 1875, McGregor, Clayton County, Iowa) on 16 August 1898 at La Crosse, La Crosse County, Wisconsin. Laura Alma Austin née Osborne was born 10 August 1875 at McGregor, Clayton Co., Iowa. She was the second of three children to Willis Leroy Osborne and Julia Livia Osborne née Colman. She lived with her parents at McGregor, Iowa 1875-1877 and La Crosse, Wisconsin 1877-1898 until her marriage. She was a student at the University of Wisconsin, graduating in the class of 1897 with a degree of Arts Bachelor. She was a member of Kappa Alpha Theta fraternity. Laura remained actively involved with her alma mater throughout her life. She was a life member of the Alumni Association of the University of Wisconsin and served several roles within the organisation. She frequently accompanied her husband in his travels (England, 1912; Panama, 1915; Puerto Rico, 1920; Europe, 1921; Europe, 1922; Japan, 1927). There were no children to the marriage. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Louis Winslow Austin」の詳細全文を読む スポンサード リンク
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