Template:Selected anniversaries/March 15: Difference between revisions

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||1868: Mathematician Grace Chisholm Young born. She will contribute measurable functions to the Denjoy–Young–Saks theorem, which gives some possibilities for the Dini derivatives of a function that hold almost everywhere. Pic.
||1868: Mathematician Grace Chisholm Young born. She will contribute measurable functions to the Denjoy–Young–Saks theorem, which gives some possibilities for the Dini derivatives of a function that hold almost everywhere. Pic.


||1871: James Clerk Maxwell in a letter to C. J. Monro comments on the fourth dimension, "The peculiarity of our space is that of its three dimensions, none is before or after another. As is x, so is y, and so is z." Later in the same message he adds, "I am quite sure that the kind of continuity which has four dimensions all co-equal is not to be discovered by merely generalizing Cartesian space equations." Alfred M. Bork, The Fourth Dimensions in Ninetenth-Century Physics, Isis, Sept. 1964, pg 326-338 Matt Parkers fun book on the Fourth Dimension
||1871: James Clerk Maxwell in a letter to C. J. Monro comments on the fourth dimension, "The peculiarity of our space is that of its three dimensions, none is before or after another. As is x, so is y, and so is z." Later in the same message he adds, "I am quite sure that the kind of continuity which has four dimensions all co-equal is not to be discovered by merely generalizing Cartesian space equations." Alfred M. Bork, The Fourth Dimensions in Ninetenth-Century Physics, Isis, Sept. 1964, pg 326-338 Matt Parkers fun book on the Fourth Dimension https://en.wikipedia.org/wiki/Four-dimensional_space Pics


||1877: Innocenzo Vincenzo Bartolomeo Luigi Carlo Manzetti dies ... inventor. Pic.
||1877: Innocenzo Vincenzo Bartolomeo Luigi Carlo Manzetti dies ... inventor. Pic.
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||1930: Martin Karplus born ... chemist and academic, Nobel Prize laureate (alive August 2018). Pic.
||1930: Martin Karplus born ... chemist and academic, Nobel Prize laureate (alive August 2018). Pic.
||1933: Winston Churchill was very interested in science and wrote often and popularly on the subject. He chaired a conference in on the atomic discoveries in the Cavendish Laboratory in Cambridge. On this date his scientific friend, Frederick Lindemann said of him, "All the qualities … of the scientist are manifest in him. The readiness to face realities, even though they contradict a favourite hypothesis; the recognition that theories are made to fit facts, not facts to fit the theories; the interest in phenomena and the desire to explore them, and above all the underlying conviction that the world is not just a jumble of events but that there must be some higher unity." *Graham Farmelo, Churchills Bomb https://pballew.blogspot.com/2019/03/on-this-day-in-math-march-15.html


||1951: John S. Paraskevopoulos dies ... astronomer and academic. His goal -- building a large telescope in Greece -- was never realized, due to the war between Greece and Turkey. Pic.
||1951: John S. Paraskevopoulos dies ... astronomer and academic. His goal -- building a large telescope in Greece -- was never realized, due to the war between Greece and Turkey. Pic.
||1955 John von Neumann sworn in as one of the first Atomic Energy Commissioners. In August he learned that he had bone cancer. *Goldstein, The Computer from Pascal to von Neumann. https://pballew.blogspot.com/2019/03/on-this-day-in-math-march-15.html Pic.


||1960: Eduard Čech dies ... mathematician born in Stračov (then Bohemia, Austria-Hungary, now Czech Republic). His research interests included projective differential geometry and topology. He is especially known for the technique known as Stone–Čech compactification (in topology) and the notion of Čech cohomology. Pic.
||1960: Eduard Čech dies ... mathematician born in Stračov (then Bohemia, Austria-Hungary, now Czech Republic). His research interests included projective differential geometry and topology. He is especially known for the technique known as Stone–Čech compactification (in topology) and the notion of Čech cohomology. Pic.

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