Template:Selected anniversaries/January 9: Difference between revisions
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||1975: Pyotr Novikov dies ... mathematician and theorist. Pic. | ||1975: Pyotr Novikov dies ... mathematician and theorist. Pic. | ||
File:Marhall Harvey Stone Zurich 1932.jpg|link=Marshall Harvey Stone (nonfiction)|1989: Mathematician [[Marshall Harvey Stone (nonfiction)|Marshall Harvey Stone]] dies. He contributed to real analysis, functional analysis, topology, and the study of Boolean algebra structures. | File:Marhall Harvey Stone Zurich 1932.jpg|link=Marshall Harvey Stone (nonfiction)|1989: Mathematician [[Marshall Harvey Stone (nonfiction)|Marshall Harvey Stone]] dies. He contributed to real analysis, functional analysis, topology, and the study of Boolean algebra structures. | ||
Revision as of 14:50, 9 January 2022
1799: Mathematician, philosopher, theologian, and humanitarian Maria Gaetana Agnesi dies. She is credited with writing the first book discussing both differential and integral calculus.
1848: Astronomer Caroline Herschel dies. She discovered several comets, including the periodic comet 35P/Herschel-Rigollet, which bears her name.
1894: New England Telephone and Telegraph installs the first battery-operated telephone switchboard in Lexington, Massachusetts. (Shown here: another telephone exchange circa 1900.)
1916: Mathematician and entomologist Peter Twinn born. During the Second World War, he will be the first professional mathematician recruited by the British Government Code and Cypher School.
1917: Mathematician and philosopher Georg Cantor publishes new theory of sets derived from Gnomon algorithm functions. Colleagues hail it as "a magisterial contribution to science and art of detecting and preventing crimes against mathematical constants."
1918: Scientist, inventor, and educator Charles-Émile Reynaud dies. He invented the Praxinoscope (an improved zoetrope) and was responsible for the first projected animated films.
1923: Engineer, inventor, and pilot Juan de la Cierva makes the first autogyro flight.
1955: Mathematician and criminologist J. H. C. Whitehead publishes a new class of Gnomon algorithm functions which detect and prevent crimes against mathematical constants.
1989: Mathematician Marshall Harvey Stone dies. He contributed to real analysis, functional analysis, topology, and the study of Boolean algebra structures.
2020: Reaching voted Picture of the Day by the citizens of New Minneapolis, Canada.