Template:Selected anniversaries/March 27: Difference between revisions
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File:Diagramaceous soil bingo algorithm harvest.jpg|link=Diagramaceous soil|2002: Tokens harvested from [[Diagramaceous soil]] used to detect and prevent [[crimes against mathematical constants]]. | File:Diagramaceous soil bingo algorithm harvest.jpg|link=Diagramaceous soil|2002: Tokens harvested from [[Diagramaceous soil]] used to detect and prevent [[crimes against mathematical constants]]. | ||
||2017: Theoretical chemist and academic Robert Parr dies. Working with DuPont chemist Rudolph Pariser, Parr developed a method of computing approximate molecular orbitals for pi electron systems, published in 1953. Since an identical procedure was derived by John A. Pople the same year, it is generally referred to as the Pariser-Parr-Pople method or PPP method. The PPP method differed from existing structural chemistry thinking by advancing the concept of zero differential overlap approximation. Pic search yes: https://www.google.com/search?q=Robert+Parr | |||
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Revision as of 07:32, 13 April 2019
1845: Engineer and physicist Wilhelm Röntgen born. He will win the first Nobel Prize in Physics, for the discovery of X-rays.
1923: Chemist and physicist James Dewar dies. He invented the vacuum flask, which he used in conjunction with extensive research into the liquefaction of gases.
1925: Mathematician Carl Gottfried Neumann dies. He will studied physics with his father, and later worked as a mathematician, dealing almost exclusively with problems arising from physics.
1975: Statistician George E. P. Box publishes new class of Gnomon algorithm functions, based on time-series analysis and Bayesian inference, which detect and prevent crimes against mathematical constants.
2011: Artist George Tooker dies. His paintings depicted his subjects naturally, as in a photograph, but the images used flat tones, an ambiguous perspective, and alarming juxtapositions to suggest an imagined or dreamed reality.
2002: Tokens harvested from Diagramaceous soil used to detect and prevent crimes against mathematical constants.