Template:Selected anniversaries/January 29: Difference between revisions

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||1697 (o.s.) Newton received two challenge problems from Johann Bernoulli, one being the Brachistochrone problem published in Acta eruditorum the previous June and addressed “to the shrewdest mathematicians in the world.” The next day Newton posted his solution to the Royal Society. When Bernoulli saw the anonymous solution he recognized it as “ex ungue leonem” (as the lion is recognized by his paw). *Westfall, Never at Rest, pg 581 https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-29.html
||1697 (o.s.) Newton received two challenge problems from Johann Bernoulli, one being the Brachistochrone problem published in Acta eruditorum the previous June and addressed “to the shrewdest mathematicians in the world.” The next day Newton posted his solution to the Royal Society. When Bernoulli saw the anonymous solution he recognized it as “ex ungue leonem” (as the lion is recognized by his paw). *Westfall, Never at Rest, pg 581 https://pballew.blogspot.com/2019/01/on-this-day-in-math-january-29.html
||1715: Bernard Lamy dies ... mathematician and theologian. Pic.


||1810: Ernst Eduard Kummer born ... mathematician. Skilled in applied mathematics, Kummer trained German army officers in ballistics
||1810: Ernst Eduard Kummer born ... mathematician. Skilled in applied mathematics, Kummer trained German army officers in ballistics
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||1850: Lawrence Hargrave born ... engineer, explorer, astronomer, inventor and aeronautical pioneer. Pic.
||1850: Lawrence Hargrave born ... engineer, explorer, astronomer, inventor and aeronautical pioneer. Pic.
||1859: William Cranch Bond dies ... astronomer, and the first director of Harvard College Observatory. Pic.


||1859: Seth Thomas dies ... clock manufacturer who was one of the pioneers in the mass production of clocks. After working with Eli Terry and Silas Hoadley in firm of Terry, Thomas & Hoadley, which manufactured clocks by mass production methods (1807), Thomas founded a clock factory of his own at Plymouth Hollow, Conn. (1812). He was not an inventive genius, but he was an excellent mechanic and a keen business man. Two years later he paid Terry for the rights to manufacture the latter's popular shelf clock. Shortly, he was selling as many clocks as Terry. As his business developed Thomas built a mill for rolling brass and making wire at Plymouth Hollow, and operated it in conjunction with the clock factory. Finally, he organized the Seth Thomas Clock Co. (1853). Pic.
||1859: Seth Thomas dies ... clock manufacturer who was one of the pioneers in the mass production of clocks. After working with Eli Terry and Silas Hoadley in firm of Terry, Thomas & Hoadley, which manufactured clocks by mass production methods (1807), Thomas founded a clock factory of his own at Plymouth Hollow, Conn. (1812). He was not an inventive genius, but he was an excellent mechanic and a keen business man. Two years later he paid Terry for the rights to manufacture the latter's popular shelf clock. Shortly, he was selling as many clocks as Terry. As his business developed Thomas built a mill for rolling brass and making wire at Plymouth Hollow, and operated it in conjunction with the clock factory. Finally, he organized the Seth Thomas Clock Co. (1853). Pic.

Revision as of 12:39, 29 January 2019