Template:Selected anniversaries/April 28: Difference between revisions

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||Konrad Jörgens (d. 28 April 1974) was a German mathematician. He made important contributions to mathematical physics, in particular to the foundations of quantum mechanics, and to the theory of partial differential equations and integral operators.
||Konrad Jörgens (d. 28 April 1974) was a German mathematician. He made important contributions to mathematical physics, in particular to the foundations of quantum mechanics, and to the theory of partial differential equations and integral operators.


File:Geometrical frustration icosahedron.jpg|link=Geometrical frustration (nonfiction)|1985: A brief, transient outbreak of [[Geometrical frustration (nonfiction)|Geometrical frustration]] affects nuclear reactors around the world.  Experts warn that the outbreak "was probably a precursor to a major radiation release within a year." 
File:Geometrical frustration icosahedron.jpg|link=Geometrical frustration (nonfiction)|1985: A brief, transient outbreak of [[Geometrical frustration (nonfiction)|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 (nonfiction)|Chernobyl disaster]].


File:Chernobyl disaster.jpg|link=Chernobyl disaster (nonfiction)|1986: High levels of radiation resulting from the [[Chernobyl disaster (nonfiction)|Chernobyl disaster]] are detected at a nuclear power plant in Sweden, leading Soviet authorities to publicly announce the accident.
File:Chernobyl disaster.jpg|link=Chernobyl disaster (nonfiction)|1986: High levels of radiation resulting from the [[Chernobyl disaster (nonfiction)|Chernobyl disaster]] are detected at a nuclear power plant in Sweden, leading Soviet authorities to publicly announce the accident.

Revision as of 22:18, 27 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.

    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).

    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.

    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.

    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.

    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.

    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.

    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: 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."

    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.

    2017: New survey shows that Fantasy Voronoi diagram is more popular than Fantasy Football.

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