Template:Selected anniversaries/April 16: Difference between revisions

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||1888: Zygmunt Florenty Wróblewski dies ... physicist and chemist. Pic.
||1888: Zygmunt Florenty Wróblewski dies ... physicist and chemist. Pic.


||1891: Jenő Egerváry born ... mathematician. Egerváry generalized König's theorem to the case of weighted graphs. This contribution was translated and published in 1955 by Harold W. Kuhn,[6] who also showed how to apply Kőnig's and Egerváry's method to solve the assignment problem; the resulting algorithm has since been known as the "Hungarian method". Pic.
||1891: Jenő Egerváry born ... mathematician. Egerváry generalized König's theorem to the case of weighted graphs. This contribution was translated and published in 1955 by Harold W. Kuhn, who also showed how to apply Kőnig's and Egerváry's method to solve the assignment problem; the resulting algorithm has since been known as the "Hungarian method". Pic.


||1894: Jerzy Neyman born ... mathematician and statistician. Pic.
||1894: Jerzy Neyman born ... mathematician and statistician. Pic.


||1895: Ove Arup born ... engineer and businessman, founded Arup ... Sydney Opera House. Pic.
||1895: Ove Arup born ... engineer and businessman, founded Arup ... Sydney Opera House. Pic.
||1897: F. W. Winterbotham CBE born ... British Royal Air Force officer (latterly a Group Captain) who during World War II supervised the distribution of Ultra intelligence. His book The Ultra Secret was the first popular account of Ultra to be published in Britain. Pic.


||1898: Hellmuth Kneser born ... mathematician, who made notable contributions to group theory and topology. His most famous result may be his theorem on the existence of a prime decomposition for 3-manifolds. His proof originated the concept of normal surface, a fundamental cornerstone of the theory of 3-manifolds. Pic.
||1898: Hellmuth Kneser born ... mathematician, who made notable contributions to group theory and topology. His most famous result may be his theorem on the existence of a prime decomposition for 3-manifolds. His proof originated the concept of normal surface, a fundamental cornerstone of the theory of 3-manifolds. Pic.

Revision as of 12:08, 22 April 2020

  • 1178 BC: A solar eclipse occurs. Homer's Odyssey contains a passage which may reference the eclipse: "The Sun has been obliterated from the sky, and an unlucky darkness invades the world."

    1178 BC: A solar eclipse occurs. Homer's Odyssey contains a passage which may reference the eclipse: "The Sun has been obliterated from the sky, and an unlucky darkness invades the world."

  • 1495: Mathematician and astronomer Petrus Apianus born. Apianus' works on cosmography, Astronomicum Caesareum (1540) and Cosmographicus liber (1524), will be extremely influential in his time.

    1495: Mathematician and astronomer Petrus Apianus born. Apianus' works on cosmography, Astronomicum Caesareum (1540) and Cosmographicus liber (1524), will be extremely influential in his time.

  • 1673: Leibniz wrote to Oldenburg about series: "I conjecture that Mr. Collins himself does not speak of these summations of infinite series because he brings forward the example of the series 1/2, 1/3, 1/4, 1/5, 1/6, ... which if it is continued to infinity cannot be summed because the sum is not finite, like the sum of the triangular numbers, but infinite. But now I am cramped by the space of my paper."

    1673: Leibniz wrote to Oldenburg about series: "I conjecture that Mr. Collins himself does not speak of these summations of infinite series because he brings forward the example of the series 1/2, 1/3, 1/4, 1/5, 1/6, ... which if it is continued to infinity cannot be summed because the sum is not finite, like the sum of the triangular numbers, but infinite. But now I am cramped by the space of my paper."

  • 1676: Philosopher and crime-fighter Red Eyes stops gang of math criminals from kidnapping Leibniz.

    1676: Philosopher and crime-fighter Red Eyes stops gang of math criminals from kidnapping Leibniz.

  • 1682: Mathematician John Hadley born. Hadley will lay claim to the invention of the octant, two years after Thomas Godfrey claims the same. Hadley will also develope ways to make precision aspheric and parabolic objective mirrors for reflecting telescopes.

    1682: Mathematician John Hadley born. Hadley will lay claim to the invention of the octant, two years after Thomas Godfrey claims the same. Hadley will also develope ways to make precision aspheric and parabolic objective mirrors for reflecting telescopes.

  • 1705: Physicist and mathematician Isaac Newton knighted by Queen Anne at Trinity College.

    1705: Physicist and mathematician Isaac Newton knighted by Queen Anne at Trinity College.

  • 1864:Inventor Thomas Blanchard dies. Blanchard pioneered the assembly line style of mass production in America, and also invented the major technological innovation known as interchangeable parts.He also invented America's first car (1825), powered by steam, which he called a "horseless carriage".

    1864:Inventor Thomas Blanchard dies. Blanchard pioneered the assembly line style of mass production in America, and also invented the major technological innovation known as interchangeable parts.He also invented America's first car (1825), powered by steam, which he called a "horseless carriage".

  • 1958: Chemist and X-ray crystallographer Rosalind Franklin dies. Franklin made contributions to the discovery of the molecular structure of DNA (deoxyribonucleic acid).

    1958: Chemist and X-ray crystallographer Rosalind Franklin dies. Franklin made contributions to the discovery of the molecular structure of DNA (deoxyribonucleic acid).

  • 1958: The United States military announces that the search for hydrogen bomb known as the Tybee Bomb was unsuccessful.

    1958: The United States military announces that the search for hydrogen bomb known as the Tybee Bomb was unsuccessful.

  • 2008: Mathematician Edward Lorenz dies. Lorenz introduced the strange attractor notion, and coined the term butterfly effect.

    2008: Mathematician Edward Lorenz dies. Lorenz introduced the strange attractor notion, and coined the term butterfly effect.

  • 2018: Phaeton 9 voted Picture of the Day by the citizens of New Minneapolis, Canada.

    2018: Phaeton 9 voted Picture of the Day by the citizens of New Minneapolis, Canada.

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