John Zeleny

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John Zeleny
Born(1872-03-26)March 26, 1872
Alma materUniversity of Minnesota (B.S. 1892, Ph.D. 1906)
University of Cambridge (B.A. 1899)
Known forZeleny electroscope
ion mobility
Scientific career
InstitutionsUniversity of Minnesota
Yale University
Doctoral advisorHenry T. Eddy
Other academic advisorsJ. J. Thomson

John Zeleny (1872–1951) was a Czech-American physicist at the University of Minnesota, who in 1911 invented the Zeleny electroscope. He also studied the effect of an electric field on a liquid meniscus,[1][2] his work is seen by some as a beginning to emergent technologies like liquid metal ion sources and electrospraying and electrospinning.


  1. ^ Zeleny, John (1914). "The electrical discharge from liquid points, and a hydrostatic method of measuring the electric intensity at their surfaces". Physical Review. 3 (2): 69–91. Bibcode:1914PhRv....3...69Z. doi:10.1103/PhysRev.3.69.
  2. ^ Zeleny, John (1917). "Instability of electrified liquid surfaces". Physical Review. 10 (1): 1–6. Bibcode:1917PhRv...10....1Z. doi:10.1103/PhysRev.10.1.

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