Template:Selected anniversaries/October 13: Difference between revisions
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File:Charles Messier.jpg|link=Charles Messier (nonfiction)|1773: The Whirlpool Galaxy is discovered by [[Charles Messier (nonfiction)|Charles Messier]]. | File:Charles Messier.jpg|link=Charles Messier (nonfiction)|1773: The Whirlpool Galaxy is discovered by [[Charles Messier (nonfiction)|Charles Messier]]. | ||
||1820: John William Dawson born ... geologist and academic ... In 1859 he published a seminal paper describing the first fossil plant found in rocks of Devonian origin. Although his discovery did not have the impact that might have been expected at the time, he is now considered one of the founders of the science of palaeobotany. Pic. | ||1820: John William Dawson born ... geologist and academic ... In 1859 he published a seminal paper describing the first fossil plant found in rocks of Devonian origin. Although his discovery did not have the impact that might have been expected at the time, he is now considered one of the founders of the science of palaeobotany. Pic. | ||
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File:Walter Houser Brattain.jpg|link=Walter Houser Brattain (nonfiction)|1987: Physicist and academic [[Walter Houser Brattain (nonfiction)|Walter Houser Brattain]] dies. He shared the Nobel Prize in Physics in 1956 "for research on semiconductors and the discovery of the transistor effect." | File:Walter Houser Brattain.jpg|link=Walter Houser Brattain (nonfiction)|1987: Physicist and academic [[Walter Houser Brattain (nonfiction)|Walter Houser Brattain]] dies. He shared the Nobel Prize in Physics in 1956 "for research on semiconductors and the discovery of the transistor effect." | ||
||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. | ||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. | ||
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||2006: Hilda Terry dies ... cartoonist, created the comic strip ''Teena'', which ran in newspapers from 1944 to 1964. Pic. | ||2006: Hilda Terry dies ... cartoonist, created the comic strip ''Teena'', which ran in newspapers from 1944 to 1964. Pic. | ||
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Latest revision as of 13:24, 7 February 2022
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.
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.
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.
1976: The first electron micrograph of an Ebola viral particle is obtained by Dr. F. A. Murphy at the C.D.C.
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."