Template:Selected anniversaries/November 25: Difference between revisions

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||1972 – Henri Coandă, Romanian engineer, designed the Coandă-1910 (b. 1886)
||1972 – Henri Coandă, Romanian engineer, designed the Coandă-1910 (b. 1886)
||Eduard L. Stiefel (d. 25 November 1978) was a Swiss mathematician. Together with Cornelius Lanczos and Magnus Hestenes, he invented the conjugate gradient method, and gave what is now understood to be a partial construction of the Stiefel–Whitney classes of a real vector bundle, thus co-founding the study of characteristic classes. Pic.


||1986 – Iran–Contra affair: U.S. Attorney General Edwin Meese announces that profits from covert weapons sales to Iran were illegally diverted to the anti-communist Contra rebels in Nicaragua.
||1986 – Iran–Contra affair: U.S. Attorney General Edwin Meese announces that profits from covert weapons sales to Iran were illegally diverted to the anti-communist Contra rebels in Nicaragua.

Revision as of 10:30, 1 April 2018

  • 1686: Scientist and bishop Niels Steensen dies. He questioned explanations for tear production, the idea that fossils grow in the ground.

    1686: Scientist and bishop Niels Steensen dies. He questioned explanations for tear production, the idea that fossils grow in the ground.

  • 1814: Physician and physicist Julius Robert von Mayer born. He will describe the vital chemical process now referred to as oxidation as the primary source of energy for any living creature; but his achievements will be overlooked and priority for the discovery of the mechanical equivalent of heat will be attributed to James Joule.

    1814: Physician and physicist Julius Robert von Mayer born. He will describe the vital chemical process now referred to as oxidation as the primary source of energy for any living creature; but his achievements will be overlooked and priority for the discovery of the mechanical equivalent of heat will be attributed to James Joule.

  • 1840: Astronomer Caroline Herschel publishes new class of Gnomon algorithm functions which improve lens refraction in telescopes.

    1840: Astronomer Caroline Herschel publishes new class of Gnomon algorithm functions which improve lens refraction in telescopes.

  • 1841: Mathematician and logician Ernst Schröder born. His monumental Vorlesungen über die Algebra der Logik will prepare the way for the emergence of mathematical logic as a separate discipline in the twentieth century by systematizing the various systems of formal logic of the day.

    1841: Mathematician and logician Ernst Schröder born. His monumental Vorlesungen über die Algebra der Logik will prepare the way for the emergence of mathematical logic as a separate discipline in the twentieth century by systematizing the various systems of formal logic of the day.

  • 1858: Charles Sanders Peirce invents new variety of Gnomon algorithm, anticipates future work by Ernst Schröder.

    1858: Charles Sanders Peirce invents new variety of Gnomon algorithm, anticipates future work by Ernst Schröder.

  • 1915: Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.

    1915: Albert Einstein presents the field equations of general relativity to the Prussian Academy of Sciences.

  • 1947: Red Scare: The "Hollywood Ten" are blacklisted by Hollywood movie studios.

    1947: Red Scare: The "Hollywood Ten" are blacklisted by Hollywood movie studios.

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