Template:Selected anniversaries/April 16: Difference between revisions

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||Hellmuth Kneser (b. 16 April 1898) was a Baltic German 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.
||Hellmuth Kneser (b. 16 April 1898) was a Baltic German 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.


||1899 – Osman Achmatowicz, Polish chemist and academic (d. 1988)
||1899: Osman Achmatowicz born ... chemist and academic.


||1907 – Joseph-Armand Bombardier, Canadian inventor and businessman, founded Bombardier Inc. (d. 1964)
||1907: Joseph-Armand Bombardier born ... inventor and businessman, founded Bombardier Inc.


||1914 – George William Hill, American astronomer and mathematician (b. 1838)
||1914: George William Hill dies ... astronomer and mathematician.


||1919 – Thomas Willmore, English geometer and academic (d. 2005)
||1919: Thomas Willmore born ... geometer and academic.


||1929 – Ralph Slatyer, Australian biologist and ecologist (d. 2012)
||1929: Ralph Slatyer born ... biologist and ecologist.


||1936 – Vadim Kuzmin, Russian physicist and academic (d. 2015). Pic.
||1936: Vadim Kuzmin born ... physicist and academic. Pic.


||1943 – Albert Hofmann accidentally discovers the hallucinogenic effects of the research drug LSD. He intentionally takes the drug three days later on April 19.
||1943: Albert Hofmann accidentally discovers the hallucinogenic effects of the research drug LSD. He intentionally takes the drug three days later on April 19.


||1947 – Bernard Baruch first applies the term "Cold War" to describe the relationship between the United States and the Soviet Union.
||1947: Bernard Baruch first applies the term "Cold War" to describe the relationship between the United States and the Soviet Union.


File:Rosalind Franklin.jpg|link=Rosalind Franklin (nonfiction)|1958: Chemist and X-ray crystallographer [[Rosalind Franklin (nonfiction)|Rosalind Franklin]] dies. She made contributions to the discovery of the molecular structure of DNA (deoxyribonucleic acid).
File:Rosalind Franklin.jpg|link=Rosalind Franklin (nonfiction)|1958: Chemist and X-ray crystallographer [[Rosalind Franklin (nonfiction)|Rosalind Franklin]] dies. She made contributions to the discovery of the molecular structure of DNA (deoxyribonucleic acid).
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File:Brainiac Explains Lecture Series (Dominic Yeso).jpg|link=Brainiac Explains|1962: [[Brainiac Explains]] lecture series explains why [[Colonel Zersetzung]] failed to detonate the [[1958 Tybee Island mid-air collision (nonfiction)|Tybee Bomb]].
File:Brainiac Explains Lecture Series (Dominic Yeso).jpg|link=Brainiac Explains|1962: [[Brainiac Explains]] lecture series explains why [[Colonel Zersetzung]] failed to detonate the [[1958 Tybee Island mid-air collision (nonfiction)|Tybee Bomb]].


||1972 – Apollo program: The launch of Apollo 16 from Cape Canaveral, Florida.
||1972: Apollo program: The launch of Apollo 16 from Cape Canaveral, Florida.


||1998 – Alberto Calderón, Argentinian-American mathematician and academic (b. 1920)
||1998: Alberto Calderón dies ... mathematician and academic.
 
||2001: Alfred Horn dies ... mathematician notable for his work in lattice theory and universal algebra. His 1951 paper "On sentences which are true of direct unions of algebras" described Horn clauses and Horn sentences, which later would form the foundation of logic programming. Pic.


File:Edward Lorenz.jpg|link=Edward Lorenz (nonfiction)|2008: Mathematician [[Edward Lorenz (nonfiction)|Edward Lorenz]] dies.  He introduced the strange attractor notion, and coined the term butterfly effect.
File:Edward Lorenz.jpg|link=Edward Lorenz (nonfiction)|2008: Mathematician [[Edward Lorenz (nonfiction)|Edward Lorenz]] dies.  He introduced the strange attractor notion, and coined the term butterfly effect.

Revision as of 07:50, 26 August 2018

  • 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.

  • 2018: Signed first edition of Red Spiral 3 sells for $150,000 in charity auction to benefit victims of crimes against mathematical constants.

    2018: Signed first edition of Red Spiral 3 sells for $150,000 in charity auction to benefit victims of crimes against mathematical constants.

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