Template:Selected anniversaries/April 28: Difference between revisions
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||1765 – Sylvestre François Lacroix, French mathematician and academic (d. 1834) | ||1765 – Sylvestre François Lacroix, French mathematician and academic (d. 1834) | ||
||1773: Mathematician Robert Woodhouse born in Norwich, England. He was interested in the "metaphysics of the calculus," including the proper theoretical foundations of calculus, the role of geometric and analytic methods, and the importance of notation. Pic: book cover. | |||
File:Francis Baily.jpg|link=Francis Baily (nonfiction)|1774: Astronomer [[Francis Baily (nonfiction)|Francis Baily]] born. He will observe "Baily's beads" during an annular eclipse (1836). | File:Francis Baily.jpg|link=Francis Baily (nonfiction)|1774: Astronomer [[Francis Baily (nonfiction)|Francis Baily]] born. He will observe "Baily's beads" during an annular eclipse (1836). | ||
||1789 – Mutiny on the Bounty: Lieutenant William Bligh and 18 sailors are set adrift and the rebel crew returns to Tahiti briefly and then sets sail for Pitcairn Island. | ||1789 – Mutiny on the Bounty: Lieutenant William Bligh and 18 sailors are set adrift and the rebel crew returns to Tahiti briefly and then sets sail for Pitcairn Island. | ||
||1817: Gauss wrote to the astronomer H. W. M. Oblers, saying, "I am becoming more and more convinced that the necessity of our (Euclidean) geometry cannot be proved, at least not by human intellect nor for the human intellect." | |||
||Charles Bourseul (b. 28 April 1829) was a pioneer in development of the "make and break" telephone about 20 years before Bell made a practical telephone. | ||Charles Bourseul (b. 28 April 1829) was a pioneer in development of the "make and break" telephone about 20 years before Bell made a practical telephone. | ||
Revision as of 08:14, 29 April 2018
1402: Aztec philosopher, warrior, architect, poet, and ruler Nezahualcoyotl born. He will have an experience of an "Unknown, Unknowable Lord of Everywhere" to whom he will build an entirely empty temple in which no blood sacrifices of any kind will be allowed.
1774: Astronomer Francis Baily born. He will observe "Baily's beads" during an annular eclipse (1836).
1847: Mathematician Leopold Kronecker uses number theory to predict and prevent crimes against mathematical constants.
1868: Mathematician Georgy Voronoy born. He will invent what are today called Voronoi diagrams or Voronoi tessellations.
1906: Mathematician, philosopher, and academic Kurt Gödel born. His two incompleteness theorems will have an immense impact upon scientific and philosophical thinking in the 20th century.
1928: Geologist and astronomer Eugene Merle Shoemaker born. Shoemaker will be the first scientist to conclude that Barringer Meteor Crater in Arizona, and similar craters, were caused by meteor impact.
1985: A brief, transient outbreak of Geometrical frustration affects nuclear reactors around the world. The outbreak will last only a few microseconds, and there will be no signs of damage to any of the reactors. The event will later be recognized as a precursor to the Chernobyl disaster.
1986: High levels of radiation resulting from the Chernobyl disaster are detected at a nuclear power plant in Sweden, leading Soviet authorities to publicly announce the accident.
1986: Celebrity time-traveller Radium Jane visits the stricken Chernobyl reactor, calls it "a waste of good fissionable material."
2017: New survey shows that Fantasy Voronoi diagram is more popular than Fantasy Football.
2018: Steganographic analysis of Spiral Rings 2 reveals "at least five hundred megabytes of encrypted data." Cryptographer Janet Beta calls it "a completely unexpected treasure-trove of archaic Gnomon algorithm functions, some of them timestamped centuries ago, which raises interesting questions of provenance."