Template:Selected anniversaries/December 13: Difference between revisions
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||1128: "In the third year of Lothar, emperor of the Romans, in the twenty-eighth year of King Henry of the English…on Saturday, 8 December, there appeared from the morning right up to the evening two black spheres against the sun." This description of sunspots, and the earliest known drawing of sunspots, appears in John of Worcester’s Chronicle recorded in 1128. On the night of 13 December 1128, astronomers in Songdo, Korea, witnessed a red vapour that "soared and filled the sky" from the northwest to the southwest. A delay of five days is the average delay between the occurrence of a large sunspot group near the center of the Sun – exactly as witnessed by John of Worcester – and the appearance of the aurora borealis in the night sky at relatively low latitudes *Joe Hanson, itsokaytobesmart.com | ||1128: "In the third year of Lothar, emperor of the Romans, in the twenty-eighth year of King Henry of the English…on Saturday, 8 December, there appeared from the morning right up to the evening two black spheres against the sun." This description of sunspots, and the earliest known drawing of sunspots, appears in John of Worcester’s Chronicle recorded in 1128. On the night of 13 December 1128, astronomers in Songdo, Korea, witnessed a red vapour that "soared and filled the sky" from the northwest to the southwest. A delay of five days is the average delay between the occurrence of a large sunspot group near the center of the Sun – exactly as witnessed by John of Worcester – and the appearance of the aurora borealis in the night sky at relatively low latitudes *Joe Hanson, itsokaytobesmart.com | ||
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||1957: Niels Bohr comes to Univ of Oklahoma for lecture on "Atoms and Human Knowledge." Jens Rud Nielsen, who joined the OU Physics Department in 1924, was an undergraduate student of Bohr in Denmark. Bohr, one of the founders of quantum mechanics, made two trips to the University of Oklahoma, first in 1937 and again in 1957. *U of Ok digital collection ... Pic: Poster | ||1957: Niels Bohr comes to Univ of Oklahoma for lecture on "Atoms and Human Knowledge." Jens Rud Nielsen, who joined the OU Physics Department in 1924, was an undergraduate student of Bohr in Denmark. Bohr, one of the founders of quantum mechanics, made two trips to the University of Oklahoma, first in 1937 and again in 1957. *U of Ok digital collection ... Pic: Poster | ||
||1962: NASA launches Relay 1, the first active repeater communications satellite in orbit. | ||1962: NASA launches Relay 1, the first active repeater communications satellite in orbit. Pic. | ||
||1972: Apollo program: Eugene Cernan and Harrison Schmitt begin the third and final extra-vehicular activity (EVA) or "Moonwalk" of Apollo 17. To date they are the last humans to set foot on the Moon. | ||1972: Apollo program: Eugene Cernan and Harrison Schmitt begin the third and final extra-vehicular activity (EVA) or "Moonwalk" of Apollo 17. To date they are the last humans to set foot on the Moon. | ||
Revision as of 13:25, 28 February 2019
1516: Polymath Johannes Trithemius dies. He is remembered as a lexicographer, chronicler, cryptographer, and occultist.
1675: Mathematician and crime-fighter John Pell publishes new theory of equations with applications in the detection and prevention of crimes against mathematical constants.
1887: Mathematician George Pólya born. He will make fundamental contributions to combinatorics, number theory, numerical analysis and probability theory.
1907: Mathematician and adacemic Emmy Noether received her Ph.D. degree, summa cum laude, from the University of Erlangen, for a dissertation on algebraic invariants directed by Paul Gordan.
1973: Talk show host Peter Giblets broadcasts an episode of Peter Giblets Hour in New Minneapolis, Canada; his guests include Niles Cartouchian and Pierre Trudeau.
2007: Physicist, mathematician, statistician, and meteorologist Akiva Yaglom dies. He contributed to statistical turbulence theory and random process theory.
2016: Signed first edition of Three Kings 3 stolen from the New MIA in New Minneapolis, Canada by agents of the Killer Poke gang.