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* 1939 – Albert Einstein and Leó Szilárd write a letter to Franklin D. Roosevelt, urging him to begin the Manhattan Project to develop a nuclear weapon.
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Subsequent formalizations were framed as attempts to define " effective calculability " or " effective method "; those formalizations included the Gödel – Herbrand – Kleene recursive functions of 1930, 1934 and 1935, Alonzo Church's lambda calculus of 1936, Emil Post's " Formulation 1 " of 1936, and Alan Turing's Turing machines of 1936 – 7 and 1939.
* 1939 – NBC inaugurates its regularly scheduled television service in New York City, broadcasting President Franklin D. Roosevelt's N. Y. World's Fair opening day ceremonial address.
* 1939 – Edward Patten, American singer-songwriter and producer ( Gladys Knight & the Pips ) ( d. 2005 )
Eastern European theorists include Pyotr Stolypin ( 1862 – 1911 ) and Alexander Chayanov ( 1888 – 1939 ) in Russia ; Adolph Wagner ( 1835 – 1917 ), and Karl Oldenberg in Germany, and Bolesław Limanowski ( 1835 – 1935 ) in Poland.
1939 and Albert
The first practical electron microscope was constructed in 1938, at the University of Toronto, by Eli Franklin Burton and students Cecil Hall, James Hillier, and Albert Prebus ; and Siemens produced the first commercial transmission electron microscope ( TEM ) in 1939.
In August 1939 Leó Szilárd had prepared and Albert Einstein signed the famous letter warning President Franklin D. Roosevelt of the probability that the Nazis were planning to build an atomic bomb.
In 1917, Albert Einstein established the theoretical foundations for the laser and the maser in the paper Zur Quantentheorie der Strahlung ( On the Quantum Theory of Radiation ); via a re-derivation of Max Planck ’ s law of radiation, conceptually based upon probability coefficients ( Einstein coefficients ) for the absorption, spontaneous emission, and stimulated emission of electromagnetic radiation ; in 1928, Rudolf W. Ladenburg confirmed the existences of the phenomena of stimulated emission and negative absorption ; in 1939, Valentin A. Fabrikant predicted the use of stimulated emission to amplify “ short ” waves ; in 1947, Willis E. Lamb and R. C. Retherford found apparent stimulated emission in hydrogen spectra and effected the first demonstration of stimulated emission ; in 1950, Alfred Kastler ( Nobel Prize for Physics 1966 ) proposed the method of optical pumping, experimentally confirmed, two years later, by Brossel, Kastler, and Winter.
< tr bgcolor ="# FFE8E8 ">< td > 28 < td > Albert Ogilvie < td > Labor < td > 22 June 1934 < td > 11 June 1939
Sturges and Paramount producer Albert Lewin had some written disagreement in 1939 about the development of the script, with Lewin writing to Sturges, " the first two-thirds of the script, in spite of the high quality of your jokes, will require an almost one hundred percent rewrite.
He settled in New York in 1937, and shortly after the first From Spirituals to Swing concert, recorded pianists Albert Ammons and Meade Lux Lewis in 1939 during a one-day session in a rented studio.
Arno Breker's 1939 neoclassical sculpture Die Partei ( The Party ), which flanked one of the entrances to the Albert Speer designed Reich Chancellery # Reich Chancellery ( 1938 ) | Reich Chancellery of the Third Reich, encapsulated the National Socialist ideals of the Aryanism | Aryan master race, with Die Partei as the physical embodiment of the spirit of the Nazi Party.
Crain Highway, one of Glen Burnie's main thoroughfares ( named after State Senator Robert Crain ), opened in 1927 and Ritchie Highway ( Maryland Route 2, named for ex-Governor Albert C. Ritchie ) followed in 1939.
Irving " Knadles " Nitzberg, who was " imported " by the Brooklyn " Combination " from ( the ) Bronx, was put on trial for the January 9, 1939, murder of Albert (" Plug ") Shuman in Brooklyn based on the testimony of three accomplices, Abe Reles, Albert Tannenbaum and Seymour Magoon.
Albert Houghton, originally a founding member of the Communist Party in Merseyside, had drawn Trotskyist conclusions and by 1939 had " long battled with the Stalinists " in the Labour Party in Merseyside.
The results of the tests were communicated to Albert Betz who then passed them on to Willy Messerschmitt in December 1939.
Ward received a fellowship and attended the Juilliard School of Music in New York from 1939 to 1942, where he studied composition with Frederick Jacobi, orchestration with Bernard Wagenaar, and conducting with Albert Stoessel and Edgar Schenkman.
The unused westbound tunnel was used during World War I to store art from the Victoria & Albert Museum and china from Buckingham Palace and, from 1927 to 1939, was used as a signalling school.
As NSDAP party leader of Danzig, Albert Forster became leader of Civil Administration in Danzig in 1939 and remained the most powerful politician of this area until 1945.
Starting in 1939, Acuff hosted the Opry's Prince Albert segment, but left the show in 1946 after a dispute with management.
Albert John " Alby " Schultz ( born 29 May 1939 ), Australian politician, has been a Liberal member of the Australian House of Representatives since October 1998, representing Hume, New South Wales.
During the " Romanian war scare " of March 1939, when the Romanian government, as part of an effort to enlist British support against German demands for the control of the Romanian oil industry, had the Romanian Minister in London Virgil Tilea make a series of highly misleading statements to the British government to the effect that they were under the verge of an immediate German invasion, Bonnet happened to be in London as part of the company accompanying the state visit of President Albert Lebrun.
Coleridge-Taylor's work was later championed by Malcolm Sargent, who between 1928 and 1939 conducted ten seasons of a costumed ballet version of The Song of Hiawatha at the Royal Albert Hall with the Royal Choral Society ( 600 to 800 singers ) and 200 dancers.
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