Pupin, Michael Idvorsky (pyōpēnˈ) [key], 1858–1935, American physicist and inventor, b. Idvor, Hungary (now in Serbia), grad. Columbia (B.A., 1883). He came to the United States in 1874 and from 1889 was associated with Columbia (as professor of electromechanics, 1901–31). He is known for his researches in X rays and for his invention of numerous electrical devices used in telegraphy and telephony. Pupin wrote the Pulitzer Prize–winning autobiography, From Immigrant to Inventor (1923).
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