Template:Selected anniversaries/October 21: Difference between revisions
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||Heinrich Eduard Heine (October 21 1881) was a German mathematician. Heine became known for results on special functions and in real analysis. In particular, he authored an important treatise on spherical harmonics and Legendre functions (''Handbuch der Kugelfunctionen''). He also investigated basic hypergeometric series. He introduced the Mehler–Heine formula. | ||Heinrich Eduard Heine (October 21 1881) was a German mathematician. Heine became known for results on special functions and in real analysis. In particular, he authored an important treatise on spherical harmonics and Legendre functions (''Handbuch der Kugelfunctionen''). He also investigated basic hypergeometric series. He introduced the Mehler–Heine formula. | ||
||Llewellyn Hilleth Thomas (b. 21 October 1903) was a British physicist and applied mathematician. He is best known for his contributions to atomic physics, | |||
||1911 – Mary Blair, American illustrator and animator (d. 1978) | ||1911 – Mary Blair, American illustrator and animator (d. 1978) | ||
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||1980 – Hans Asperger, Austrian physician and psychologist (b. 1906) | ||1980 – Hans Asperger, Austrian physician and psychologist (b. 1906) | ||
|| | || Nicholas Kemmer (d. 21 October 1998), was a Russian-born nuclear physicist working in Britain, who played an integral and leading edge role in United Kingdom's nuclear program. Pic. | ||
||2005 – Images of the dwarf planet Eris are taken and subsequently used in documenting its discovery by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz. | ||2005 – Images of the dwarf planet Eris are taken and subsequently used in documenting its discovery by the team of Michael E. Brown, Chad Trujillo, and David L. Rabinowitz. | ||
Revision as of 18:41, 26 January 2018
1687: Mathematician and theorist Nicolaus I Bernoulli born. He will introduce a successful resolution to the St. Petersburg paradox.
1914: Mathematics and science writer Martin Gardner born. His interests will include stage magic, scientific skepticism, philosophy, religion, and literature.
1958: National Pareidolia Day declared in the United States.
1969: Mathematician and academic Wacław Sierpiński dies. He made important contributions to set theory (research on the axiom of choice and the continuum hypothesis), number theory, theory of functions, and topology.
2017: Green Spiral 9 feels more green than ever, according to new chromatographic analysis.