Template:Selected anniversaries/July 27: Difference between revisions

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File:John Dalton by Charles Turner.jpg|link=John Dalton (nonfiction)|1844: Chemist, meteorologist, and physicist [[John Dalton (nonfiction)|John Dalton]] dies. He proposed the modern atomic theory, and did research in color blindness.
File:John Dalton by Charles Turner.jpg|link=John Dalton (nonfiction)|1844: Chemist, meteorologist, and physicist [[John Dalton (nonfiction)|John Dalton]] dies. He proposed the modern atomic theory, and did research in color blindness.


||1848: Loránd Eötvös born ... physicist and politician, Minister of Education of Hungary.
||1848: Loránd Eötvös born ... physicist and politician, Minister of Education of Hungary. Pic.


||1849: John Hopkinson born ... physicist and electrical engineer who worked on the application of electricity and magnetism in devices like the dynamo and electromagnets. Hopkinson's law (the magnetic equivalent of Ohm's law) bears his name. In 1882, he patented his invention of the three-wire system (three phase) for electricity generation and distribution. He presented the principle the synchronous motors (1883), and designed electric generators with better efficiency. He also studied condensers and the phenomena of residual load. In his earlier career, he became (1872) engineering manager of Chance Brothers and Co., a glass manufacturer in Birmingham, where he studied lighthouse illumination, improving efficiency with flashing groups of lights. Pic: https://es.wikipedia.org/wiki/John_Hopkinson
||1849: John Hopkinson born ... physicist and electrical engineer who worked on the application of electricity and magnetism in devices like the dynamo and electromagnets. Hopkinson's law (the magnetic equivalent of Ohm's law) bears his name. In 1882, he patented his invention of the three-wire system (three phase) for electricity generation and distribution. He presented the principle the synchronous motors (1883), and designed electric generators with better efficiency. He also studied condensers and the phenomena of residual load. In his earlier career, he became (1872) engineering manager of Chance Brothers and Co., a glass manufacturer in Birmingham, where he studied lighthouse illumination, improving efficiency with flashing groups of lights. Pic: https://es.wikipedia.org/wiki/John_Hopkinson

Revision as of 09:32, 29 December 2018