Template:Selected anniversaries/January 22: Difference between revisions

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File:Gottfried Wilhelm Leibniz.jpg|link=Gottfried Wilhelm Leibniz (nonfiction)|1673: [[Gottfried Wilhelm Leibniz (nonfiction)|Gottfried Wilhelm Leibniz]] presents a calculation machine at the Royal Society. Leibniz would complain to Oldenburg that Hooke took an "almost obscene" interest in the machine. Sure enough, by Feb 2 Hooke was actively working on an "arithmetic engine" that he would complete and show to the Royal Society within the month. By the following month his interest waned and he decided that no mechanical device could compare to paper and pencil or "Lord Napier's metal or parchment rods" (Napiers bones).
File:Gottfried Wilhelm Leibniz.jpg|link=Gottfried Wilhelm Leibniz (nonfiction)|1673: [[Gottfried Wilhelm Leibniz (nonfiction)|Gottfried Wilhelm Leibniz]] presents a calculation machine at the Royal Society. Leibniz would complain to Oldenburg that Hooke took an "almost obscene" interest in the machine. Sure enough, by Feb 2 Hooke was actively working on an "arithmetic engine" that he would complete and show to the Royal Society within the month. By the following month his interest waned and he decided that no mechanical device could compare to paper and pencil or "Lord Napier's metal or parchment rods" (Napiers bones).
|*Stephen Inwood, The Forgotten Genius: The Biography Of Robert Hooke 1635-1703
|*Stephen Inwood, The Forgotten Genius: The Biography Of Robert Hooke 1635-1703
File:Claude Chappe.jpg|link=Claude Chappe (nonfiction)|1795: Inventor [[Claude Chappe (nonfiction)|Claude Chappe]] uses the French [[Semaphore telegraph (nonfiction)|semaphore system]] to detect and prevent [[crimes against mathematical constants]].


||1779: Jeremiah Dixon born ... surveyor and astronomer who is best known for his work with Charles Mason, from 1763 to 1767, in determining what was later called the Mason–Dixon line. Pic: grave marker. No pics online.
||1779: Jeremiah Dixon born ... surveyor and astronomer who is best known for his work with Charles Mason, from 1763 to 1767, in determining what was later called the Mason–Dixon line. Pic: grave marker. No pics online.

Revision as of 20:38, 19 January 2022