Template:Selected anniversaries/September 23: Difference between revisions
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||1623: Stefano degli Angeli dies ... mathematician, philosopher, and Jesuat. | ||1623: Stefano degli Angeli dies ... mathematician, philosopher, and Jesuat. | ||
||1773: Johan Ernst Gunnerus born ... bishop and botanist ... first to suggest Northern Lights caused by the sun | ||1773: Johan Ernst Gunnerus born ... bishop and botanist ... first to suggest Northern Lights caused by the sun. Pic. | ||
||1785: Per Georg Scheutz born . | File:Georg Scheutz.jpg|link=Per Georg Scheutz (nonfiction)|1785: Lawyer, translator, and inventor [[Per Georg Scheutz (nonfiction)|Per Georg Scheutz]] born. He will invent the Scheutzian calculation engine, based on Charles Babbage's difference engine. | ||
||1791: Johann Franz Encke born ... astronomer and academic ... he worked on the calculation of the periods of comets and asteroids, measured the distance from the earth to the sun, and made observations of the planet Saturn. | ||1791: Johann Franz Encke born ... astronomer and academic ... he worked on the calculation of the periods of comets and asteroids, measured the distance from the earth to the sun, and made observations of the planet Saturn. | ||
Revision as of 14:31, 23 September 2018
1785: Lawyer, translator, and inventor Per Georg Scheutz born. He will invent the Scheutzian calculation engine, based on Charles Babbage's difference engine.
1877: Mathematician and astronomer Urbain Le Verrier dies. He predicted the existence and position of Neptune using only mathematics, an event widely regarded as one of the most remarkable moments of 19th century science.
1878: Astronomer and crime-fighter Maria Mitchell publishes new class of Gnomon algorithm functions which predict and prevent astronomical crimes against mathematical constants.
1884: Patent filed for Herman Hollerith's tabulating machine. Hollerith's machines will be used in the 1890 US Census and in 1924 he and others will form the company that will become IBM.
1915: Physicist and academic Clifford Shull born. He will share the 1994 Nobel Prize in Physics with Bertram Brockhouse for the development of the neutron scattering technique.
1938: Mathematician and engineer Philbert Maurice d’Ocagne dies. He founded the field of nomography, the graphic computation of algebraic equations, on charts which he called nomograms.
2018: Steganographic analysis of Violet Spiral 2 unexpectedly reveals "between seven hundred and eight hundred kilobytes" of previously unknown Gnomon algorithm-based nomograms.