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Há 1 dia · The Great Depression (1929–1939) was a severe global economic downturn that affected many countries across the world. It became evident after a sharp decline in stock prices in the United States, leading to a period of economic depression. [1]
Há 3 dias · From September 1938, Turing worked part-time with the Government Code and Cypher School (GC&CS), the British codebreaking organisation. He concentrated on cryptanalysis of the Enigma cipher machine used by Nazi Germany, together with Dilly Knox, a senior GC&CS codebreaker. [73]
- Alan Mathison Turing, 23 June 1912, Maida Vale, London, England
- 7 June 1954 (aged 41), Wilmslow, Cheshire, England
Há 1 dia · 1930: The Supersonic combusting ramjet — Frank Whittle. [citation needed] 1930: The Phase-contrast microscopy is invented by Frits Zernike. 1931: The electron microscope is invented by Ernst Ruska. 1933: FM radio is patented by inventor Edwin H. Armstrong.
Há 2 dias · 1930. All cartoons are Looney Tunes starring Bosko and are all directed and produced by Hugh Harman and Rudolf Ising, along with Leon Schlesinger as associate producer. All cartoons are also scored by Frank Marsales, who would score all cartoons through 1932. All cartoons from this year and 1931 are in the public domain.
Há 3 dias · In 1930, the nation had 238,000 elementary schools, of which 149,000 were one-room schools wherein one teacher simultaneously handled all students, aged 6 to 16. The teacher was typically the daughter of a local farm family.
Há 3 dias · The Beetle was conceived in the early 1930s. The leader of Nazi Germany, Adolf Hitler, decided there was a need for a people's car [d] to serve Germany's new road network, the Reichsautobahn. The German engineer Ferdinand Porsche and his design team began developing and designing the car in the early 1930s.
Há 3 dias · August 18, 1930 Mickey is a prisoner forced to work on a chain gang with other prisoners. When the guard Peg Leg Pete falls asleep, Mickey leads the prisoners in some care-free, innovative music making, and eventually escape.
