Template:Selected anniversaries/April 28: Difference between revisions
No edit summary |
No edit summary |
||
| Line 27: | Line 27: | ||
File:Kurt Gödel.jpg|link=Kurt Gödel (nonfiction)|1906: Mathematician, philosopher, and academic [[Kurt Gödel (nonfiction)|Kurt Gödel]] born. His two incompleteness theorems will have an immense impact upon scientific and philosophical thinking in the 20th century. | File:Kurt Gödel.jpg|link=Kurt Gödel (nonfiction)|1906: Mathematician, philosopher, and academic [[Kurt Gödel (nonfiction)|Kurt Gödel]] born. His two incompleteness theorems will have an immense impact upon scientific and philosophical thinking in the 20th century. | ||
||Richard Rado FRS (b. 28 April 1906) was a German-born British mathematician whose research concerned combinatorics and graph theory. In graph theory, the Rado graph, a countably infinite graph containing all countably infinite graphs as induced subgraphs, is named after Rado. He rediscovered it in 1964 after previous works on the same graph by Wilhelm Ackermann, Paul Erdős, and Alfréd Rényi. Pic. | |||
||1912 – Odette Hallowes, French soldier and spy (d. 1995) | ||1912 – Odette Hallowes, French soldier and spy (d. 1995) | ||
Revision as of 08:52, 4 February 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.
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.