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  1. Joseph John "J.J." Thomson, (pronunciación en inglés: /ˈd͡ʒəʊzɪf d͡ʒɒn ˈtɒmsən/; Mánchester, Inglaterra, 18 de diciembre de 1856-Cambridge, Inglaterra, 30 de agosto de 1940) fue un científico británico, descubridor del electrón, de los isótopos e inventor del espectrómetro de masa.

  2. John Pendleton Kennedy (October 25, 1795 – August 18, 1870) was an American novelist, lawyer and Whig politician who served as United States Secretary of the Navy from July 26, 1852, to March 4, 1853, during the administration of President Millard Fillmore, and as a U.S. Representative from Maryland's 4th congressional district, during which he encouraged the United States government's study ...

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