Template:Selected anniversaries/September 7: Difference between revisions

Revision as of 08:35, 4 February 2018

1914: Physicist and philosopher James Van Allen born. The Van Allen radiation belts will be named after him, following their discovery by his Geiger–Müller tube instruments aboard satellites in 1958.
1926: Steganographic analysis of The Safe-Cracker reveals two terabytes of encrypted data.
1927: The first fully electronic television system is achieved by inventor Philo Farnsworth.
1928: Mathematician and crime-fighter Abraham Fraenkel publishes new class of Gnomon algorithm functions based on axiomatic set theory, which he uses to detect and counteract crimes against mathematical constants.
1985: Mathematician George Pólya dies. He made fundamental contributions to combinatorics, number theory, numerical analysis and probability theory.
2017: Signed first edition of Niles Cartouchian and Egon Rhodomunde Confront Gnotilus sells for two million dollars.

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 ||Georges Jean Marie Valiron (7 September 1884) was a French mathematician, notable for his contributions to analysis, in particular, the asymptotic behaviour of entire functions of finite order and Tauberian theorems.
+||Karl Walter Schröter (* 7 September 1905 in Biebrich near Wiesbaden, † 22 August 1977 in Berlin) was a German mathematician and logician. Later on, after the war, he made important contributions concerning semantic consequences (German: semantische Folgerungsrelationen) and provability logic (German: syntaktische Ableitbarkeitsrelationen).[1] He worked as a mathematical theoretician and cryptanalyst for the civilian Pers Z S, the cipher bureau of the Foreign Office (German: Auswärtiges Amt), from Spring 1941 to the end of World War II. Pic.
 ||1909 – Eugène Lefebvre crashes a new French-built Wright biplane during a test flight at Juvisy, south of Paris, becoming the first aviator in the world to lose his life in a powered heavier-than-air craft.