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Robert Jemison Van de Graaff (December 20, 1901 – January 16, 1967) was an American physicist, noted for his design and construction of high-voltage Van de Graaff generators. He taught at Princeton University and Massachusetts Institute of Technology. ==Biography== Robert Jemison Van de Graaff was born at the Jemison-Van de Graaff Mansion in Tuscaloosa, Alabama. His parents were of Dutch descent. His three older brothers Adrian, Hargrove, and William were all All-Southern college football players for the Alabama Crimson Tide. William was known as "Bully" and was Alabama's first All-American. In Tuscaloosa, Robert received his BS and master's degrees from The University of Alabama where he was a member of The Castle Club (later became Mu Chapter〔(【引用サイトリンク】title=Chapter History )〕 of Theta Tau). After a year at the Alabama Power Company, Van de Graaff studied at the Sorbonne. In 1926 he earned a second BS at Oxford University on a Rhodes Scholarship, completing his PhD in 1928. Van de Graaff was the inventor of the Van de Graaff generator, a device which produces high voltages. In 1929 he developed his first generator, producing 80,000 volts, with help from Nicholas Burke at Princeton University. By 1931 he had constructed a larger generator generating 7 million volts. Van de Graaff was a National Research Fellow, and from 1931 to 1934 a research associate at the Massachusetts Institute of Technology. He became an associate professor in 1934 (staying there until 1960). He was awarded the Elliott Cresson Medal in 1936. During WWII Van de Graaff was director of the High Voltage Radiographic Project. After WWII he co-founded the High Voltage Engineering Corporation (HVEC) with John G. Trump, uncle of real estate magnate Donald Trump. During the 1950s he invented the insulating-core transformer, producing high-voltage direct current. He also developed tandem generator technology. The American Physical Society awarded him the T. Bonner prize (1965) for the development of electrostatic accelerators. Van de Graaff died on January 16, 1967 in Boston, Massachusetts. 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「Robert J. Van de Graaff」の詳細全文を読む スポンサード リンク
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