Template:Selected anniversaries/April 16: Difference between revisions

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||1881: In Dodge City, Kansas, Bat Masterson fights his last gun battle.
||1881: In Dodge City, Kansas, Bat Masterson fights his last gun battle.


||1888: Zygmunt Florenty Wróblewski dies ... physicist and chemist.
||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.[5] 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,[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.


||1894: Jerzy Neyman born ... mathematician and statistician. Pic.
||1894: Jerzy Neyman born ... mathematician and statistician. Pic.
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||1899: Osman Achmatowicz born ... chemist and academic. He devised a new method of degradation using hydrogenolysis of quaternary ammonium salts containing nitrogen in allyl position, in the presence of palladinized charcoal as catalyst. This method became crucial in studies on organic compounds and was subsequently modified by other research workers over rupture of carbon-oxygen bonds. Pic.
||1899: Osman Achmatowicz born ... chemist and academic. He devised a new method of degradation using hydrogenolysis of quaternary ammonium salts containing nitrogen in allyl position, in the presence of palladinized charcoal as catalyst. This method became crucial in studies on organic compounds and was subsequently modified by other research workers over rupture of carbon-oxygen bonds. Pic.


||1907: Joseph-Armand Bombardier born ... inventor and businessman, founded Bombardier Inc.
||1907: Joseph-Armand Bombardier born ... inventor and businessman, founded Bombardier Inc. Pic.


||1914: George William Hill dies ... ... astronomer and mathematician. Working independently and largely in isolation from the wider scientific community, he made major contributions to celestial mechanics and to the theory of ordinary differential equations. Pic.
||1914: George William Hill dies ... ... astronomer and mathematician. Working independently and largely in isolation from the wider scientific community, he made major contributions to celestial mechanics and to the theory of ordinary differential equations. Pic.


||1919: Thomas Willmore born ... geometer and academic.
||1919: Thomas Willmore born ... geometer and academic. He contributed to Riemannian 3-space and harmonic spaces. Pic.


||1929: Ralph Slatyer born ... biologist and ecologist.
||1929: Ralph Slatyer born ... biologist and ecologist.

Revision as of 11:09, 15 April 2019

  • April 16, 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."

    April 16, 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."

  • 1491: Polymath Leonardo da Vinci designs a mechanical soldier. The first working prototype will take over a decade to complete, after which da Vinci will lose all funding for the project.

    1491: Polymath Leonardo da Vinci designs a mechanical soldier. The first working prototype will take over a decade to complete, after which da Vinci will lose all funding for the project.

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

    1495: Mathematician and astronomer Petrus Apianus born. His 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."

  • 1736: Philosopher and crime-fighter Red Eyes prevents gang of math criminals from kidnapping Leibniz and Newton.

    1736: Philosopher and crime-fighter Red Eyes prevents gang of math criminals from kidnapping Leibniz and Newton.

  • 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.

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

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

  • 1958: Combat physician and alleged time-traveller Asclepius Myrmidon prevents Colonel Zersetzung from detonating the Tybee Bomb.

    1958: Combat physician and alleged time-traveller Asclepius Myrmidon prevents Colonel Zersetzung from detonating the Tybee Bomb.

  • 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.

  • 1962: Brainiac Explains lecture series explains why Colonel Zersetzung failed to detonate the Tybee Bomb.

    1962: Brainiac Explains lecture series explains why Colonel Zersetzung failed to detonate the Tybee Bomb.

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

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

  • 2008: Lorenz system diagram says it "owes everything to Papa Lorenz."

    2008: Lorenz system diagram says it "owes everything to Papa Lorenz."

  • 2017: Math photographer Cantor Parabola attends Minicon 52, taking a series of photographs with temporal superimpositions from Minicons 51 and 53.

    2017: Math photographer Cantor Parabola attends Minicon 52, taking a series of photographs with temporal superimpositions from Minicons 51 and 53.

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