Template:Selected anniversaries/July 23: Difference between revisions
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||1903: Theodore Christian Schneirla born ... comparative psychologist whose empirical work was based on observations on the behavior patterns of army ants. His "biphasic A-W theory" reduced all behavior to two simple responses: approach and withdrawal -- we approach what causes pleasure, and we withdraw from what causes unpleasure or pain. | ||1903: Theodore Christian Schneirla born ... comparative psychologist whose empirical work was based on observations on the behavior patterns of army ants. His "biphasic A-W theory" reduced all behavior to two simple responses: approach and withdrawal -- we approach what causes pleasure, and we withdraw from what causes unpleasure or pain. | ||
||1906: Vladimir Prelog, Croatian-Swiss chemist and academic, Nobel Prize laureate | ||1906: Vladimir Prelog, Croatian-Swiss chemist and academic, Nobel Prize laureate. Pic. | ||
||1907: Charles Bradfield Morrey Jr. born ... mathematician who made fundamental contributions to the calculus of variations and the theory of partial differential equations. | ||1907: Charles Bradfield Morrey Jr. born ... mathematician who made fundamental contributions to the calculus of variations and the theory of partial differential equations. | ||
Revision as of 18:54, 28 March 2019
1754: Joseph-Louis Lagrange publishes his first work, in the form of a letter in Italian. A month later he realized that he had rediscovered Leibniz's formula for the nth derivative of a product.
1829: William Austin Burt patents the typographer, a precursor to the typewriter.
1885: The well-known illustration Interview with Wallace War-Heels is stolen by math criminals, who demand computational ransom.
1934: Mathematician and crime-fighter Hans Hahn publishes new analysis of set theory which soons finds application in detecting and preventing crimes against mathematical constants.
1928: Astronomer and academic Vera Rubin born. She will discover the discrepancy between the predicted angular motion of galaxies and the observed motion, by studying galactic rotation curves.
1962: Mathematician and crime-fighter Alice Beta uses Telstar to communicate with AESOP.
1962: Telstar relays the first publicly transmitted, live trans-Atlantic television program, featuring Walter Cronkite.
2017: AESOP re-broadcasts Walter Cronkite's 1962 trans-Atlantic television program.