Template:Selected anniversaries/December 21: Difference between revisions
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||1732: Johann Christian Wiegleb born ... druggist and early innovator of chemistry as a science. | ||1732: Johann Christian Wiegleb born ... druggist and early innovator of chemistry as a science. | ||
||1754: Louis-Bertrand Castel, vociferous opponent of Newtonian science, gave a demonstration of his ocular harpsicord, which corresponded colors with the musical tones. *VFR The ocular harpsichord had sixty small coloured glass panes, each with a curtain that opened when a key was struck. A second, improved model of the harpsichord was demonstrated for a small audience in December of 1754. Pressing a key caused a small shaft to open, in turn allowing light to shine through a piece of stained glass. Castel thought of color-music as akin to the lost language of paradise, where all men spoke alike, and he claimed that thanks to his instrument’s capacity to paint sounds, even a deaf listener could enjoy music. Pic. | |||
||1805: Thomas Graham born ... chemist and academic. | ||1805: Thomas Graham born ... chemist and academic. |
Revision as of 08:29, 21 December 2018
1878: Mathematician and philosopher Jan Łukasiewicz born. He will think innovatively about traditional propositional logic, the principle of non-contradiction and the law of excluded middle.
1913: Arthur Wynne's "word-cross", the first crossword puzzle, is published in the New York World.
1974: Fantasy Voronoi diagram upstages Fantasy Football.
1976: Chronography of 354 wins Pulitzer Prize.
1984: Mandelbrot set develops artificial intelligence, discovers new class of Gnomon algorithm functions.
2016: Signed first edition of Traveller used in high-energy literature experiments develops artificial intelligence.