Template:Selected anniversaries/March 18: Difference between revisions

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||1862: Dorr Felt born ... inventor and industrialist who was known for having invented the Comptometer, an early computing device, and the Comptograph, the first printing adding machine.  Pic.
||1862: Dorr Felt born ... inventor and industrialist who was known for having invented the Comptometer, an early computing device, and the Comptograph, the first printing adding machine.  Pic.
File:Emil_Wiechert.jpg|link=Emil Wiechert (nonfiction)|1870: Physicist, geophysicist, and [[Gnomon algorithm|Gnomonic tecto-algorithm]] expert [[Emil Wiechert (nonfiction)|Emil Wiechert]] generates a resonance between the layered structure of the Earth and the layered structure of an electron, unexpectedly opening a communications link with [[AESOP]], the alleged ionospheric intelligence.


File:Augustus_De_Morgan.jpg|link=Augustus De Morgan (nonfiction)|1871: Mathematician and academic [[Augustus De Morgan (nonfiction)|Augustus De Morgan]] dies. De Morgan formulated two laws, now De Morgan's Laws, pertaining to mathematical induction: (1) the negation of a disjunction is the conjunction of the negations; (2) the negation of a conjunction is the disjunction of the negations.
File:Augustus_De_Morgan.jpg|link=Augustus De Morgan (nonfiction)|1871: Mathematician and academic [[Augustus De Morgan (nonfiction)|Augustus De Morgan]] dies. De Morgan formulated two laws, now De Morgan's Laws, pertaining to mathematical induction: (1) the negation of a disjunction is the conjunction of the negations; (2) the negation of a conjunction is the disjunction of the negations.

Revision as of 12:23, 18 March 2020