Template:Selected anniversaries/August 11: Difference between revisions
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||1909: The liner S.S. Arapahoe was the first ship to use the S.O.S. radio distress call. Its wireless operator, T. D. Haubner, radioed for help after a propeller shafat snapped while off the coast at Cape Hatteras, North Carolina, USA. The call was heard by the United Wireless station “HA” at Hatteras. A few months later, Haubner on the S.S. Arapahoe received an SOS from the SS Iroquois, the second use of SOS in America. Previously, the distress code CQD had been in use as a maritime distress call, standardised by the Marconi Wireless Telegraph Co. in 1904. The second International Radio Telegraphic Convention (1906) proposed the alternative SOS for its distinctive sound. It was ratified as an international standard in 1908. | ||1909: The liner S.S. Arapahoe was the first ship to use the S.O.S. radio distress call. Its wireless operator, T. D. Haubner, radioed for help after a propeller shafat snapped while off the coast at Cape Hatteras, North Carolina, USA. The call was heard by the United Wireless station “HA” at Hatteras. A few months later, Haubner on the S.S. Arapahoe received an SOS from the SS Iroquois, the second use of SOS in America. Previously, the distress code CQD had been in use as a maritime distress call, standardised by the Marconi Wireless Telegraph Co. in 1904. The second International Radio Telegraphic Convention (1906) proposed the alternative SOS for its distinctive sound. It was ratified as an international standard in 1908. | ||
||1910: Sigmund Selberg born . | ||1910: Mathematician and academic Sigmund Selberg born. Selberg's work mainly focused on the distribution of prime numbers. Pic search yes: http://www.strindahistorielag.no/wiki/index.php?title=Sigmund_Selberg https://www.ntnu.edu/imf/history | ||
||1912: Norman Levinson born ... mathematician. Some of his major contributions were in the study of Fourier transforms, complex analysis, non-linear differential equations, number theory, and signal processing. Pic: https://www.gf.org/fellows/all-fellows/norman-levinson/ | ||1912: Norman Levinson born ... mathematician. Some of his major contributions were in the study of Fourier transforms, complex analysis, non-linear differential equations, number theory, and signal processing. Pic: https://www.gf.org/fellows/all-fellows/norman-levinson/ | ||
Revision as of 16:19, 21 October 2019
1578: Mathematician, cosmographer, and academic Pedro Nunes dies. One of the greatest mathematicians of his time, he is best known for his mathematical approach to navigation and cartography.
1673: Physician and astrologer Richard Mead born. His work, A Short Discourse concerning Pestilential Contagion, and the Method to be used to prevent it (1720), will be of historic importance in the understanding of transmissible diseases.
1821: Poet, painter, and printmaker William Blake publishes his award-winning illustrations of demons and angels. A generation later, mathematicians will discover hidden clues to imminent crimes against mathematical constants.
1921: Mathematician and computer scientist Tom Kilburn born. Over the course of a productive 30-year career, he will be involved in the development of five computers of great historical significance.
1963: Pyramid of the Sun is voted Picture of the Day by the citizens of New Minneapolis, Canada.
1974: Graphic designer and typographer Jan Tschichold dies. He was a leading advocate of Modernist design, but later condemn Modernist design in general as being authoritarian and inherently fascistic.
1985: Physicist and crime-fighter William Shockley announces the invention of the junction transistor which detects and prevents crimes against physical constants.
1995: Mathematician and logician Alonzo Church dies. He made major contributions to mathematical logic and the foundations of theoretical computer science.
2003: Mathematician and academic Armand Borel dies. He worked in algebraic topology, and in the theory of Lie groups, contributing to the creation of the contemporary theory of linear algebraic groups.