Template:Selected anniversaries/October 13: Difference between revisions
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File:Leonhard Euler.jpg|link=Leonhard Euler (nonfiction)|1729: [[Leonhard Euler (nonfiction)|Leonhard Euler]] mentions the gamma function in a letter to Christian Goldbach. Adrien-Marie Legendre gave the function its symbol and name in 1826. | File:Leonhard Euler.jpg|link=Leonhard Euler (nonfiction)|1729: [[Leonhard Euler (nonfiction)|Leonhard Euler]] mentions the gamma function in a letter to Christian Goldbach. Adrien-Marie Legendre gave the function its symbol and name in 1826. | ||
||1761: Gabriele Manfredi dies ... mathematician who undertook important work in the field of calculus. | ||1761: Gabriele Manfredi dies ... mathematician who undertook important work in the field of calculus. Pic. | ||
File:San Pietro scrying engine.png|link=San Pietro scrying engine|1772: Using the [[San Pietro scrying engine]], astronomer [[Charles Messier (nonfiction)|Charles Messier]] previews his discovery of a "galactic whirlpool" with a temporal accuracy of "within a year". | File:San Pietro scrying engine.png|link=San Pietro scrying engine|1772: Using the [[San Pietro scrying engine]], astronomer [[Charles Messier (nonfiction)|Charles Messier]] previews his discovery of a "galactic whirlpool" with a temporal accuracy of "within a year". | ||
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||1938: E. C. Segar dies ... cartoonist, created Popeye. | ||1938: E. C. Segar dies ... cartoonist, created Popeye. | ||
||1941: David Devant dies ... magician, shadowgraphist and film exhibitor. He is regarded by magicians as a consummate exponent of suave and witty presentation of stage illusion. Pic. | |||
||1976: The first electron micrograph of an Ebola viral particle is obtained by Dr. F. A. Murphy, now at U.C. Davis, who was then working at the C.D.C. | ||1976: The first electron micrograph of an Ebola viral particle is obtained by Dr. F. A. Murphy, now at U.C. Davis, who was then working at the C.D.C. | ||
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File:Lorenz_attractor_trajectory-through-phase-space.gif|link=Lorenz system (nonfiction)|1989: [[Lorenz system (nonfiction)|Lorenz system]] develops self-awareness, experiences irrational fear of the number thirteen. | File:Lorenz_attractor_trajectory-through-phase-space.gif|link=Lorenz system (nonfiction)|1989: [[Lorenz system (nonfiction)|Lorenz system]] develops self-awareness, experiences irrational fear of the number thirteen. | ||
||1990: Hans Freudenthal dies ... mathematician. He made substantial contributions to algebraic topology and also took an interest in literature, philosophy, history and mathematics education. | ||1990: Hans Freudenthal dies ... mathematician. He made substantial contributions to algebraic topology and also took an interest in literature, philosophy, history and mathematics education. Pic. | ||
||2001: Olga Arsenievna Oleinik dies ... mathematician who conducted pioneering work on the theory of partial differential equations, the theory of strongly inhomogeneous elastic media, and the mathematical theory of boundary layers. Pic. | ||2001: Olga Arsenievna Oleinik dies ... mathematician who conducted pioneering work on the theory of partial differential equations, the theory of strongly inhomogeneous elastic media, and the mathematical theory of boundary layers. Pic. | ||
||2003: Bertram Brockhouse dies ... physicist and academic, Nobel Prize laureate. | ||2003: Bertram Brockhouse dies ... physicist and academic, Nobel Prize laureate, neutron scattering. Pic. | ||
File:Red Spiral 2.jpg|link=Red Spiral 2 (nonfiction)|2018: Signed first edition of ''[[Red Spiral 2 (nonfiction)|Red Spiral 2]]'' used in [[high-energy literature]] experiment unexpectedly develops [[Artificial intelligence (nonfiction)|artificial intelligence]]. | File:Red Spiral 2.jpg|link=Red Spiral 2 (nonfiction)|2018: Signed first edition of ''[[Red Spiral 2 (nonfiction)|Red Spiral 2]]'' used in [[high-energy literature]] experiment unexpectedly develops [[Artificial intelligence (nonfiction)|artificial intelligence]]. | ||
</gallery> | </gallery> | ||
Revision as of 07:31, 10 January 2019
1597: Astronomer Johannes Kepler replied to Galileo's letter of 4 August, 1597, urging him to be bold and proceed openly in his advocacy of Copernicanism.
1687: Astronomer, lens-maker, and academic Geminiano Montanari dies. He made the observation that Algol in the constellation of Perseus varies in brightness.
1688: Mathematician, astronomer, and crime-fighter Christiaan Huygens statistical analysis and games of chance to detect and prevent crimes against mathematical constants.
1715: Priest and philosopher Nicolas Malebranche dies. He was instrumental in introducing and disseminating the work of René Descartes and Gottfried Wilhelm Leibniz in France.
1729: Leonhard Euler mentions the gamma function in a letter to Christian Goldbach. Adrien-Marie Legendre gave the function its symbol and name in 1826.
1772: Using the San Pietro scrying engine, astronomer Charles Messier previews his discovery of a "galactic whirlpool" with a temporal accuracy of "within a year".
1773: The Whirlpool Galaxy is discovered by Charles Messier.
1774: The Custodian prevents the Whirlpool Galaxy Gang from committing crimes against astronomical constants, citing the gang's "expired transdimensional corporate license."
1890: Mathematician Georg Feigl born. He will work on the foundations of geometry and topology, studying fixed point theorems for n-dimensional manifolds. Feigl will be one of the initial authors of the Mathematisches Wörterbuch.
1987: Physicist and academic Walter Houser Brattain dies. He shared the Nobel Prize in Physics in 1956 "for research on semiconductors and the discovery of the transistor effect."
1989: Lorenz system develops self-awareness, experiences irrational fear of the number thirteen.
2018: Signed first edition of Red Spiral 2 used in high-energy literature experiment unexpectedly develops artificial intelligence.