| John Zeleny | |
|---|---|
| Born | March 26, 1872 |
| Died | 1951 |
| Residence | USA |
| Nationality | Czech-American |
| Fields | Physicist |
| Institutions |
University of Minnesota Yale University |
| Alma mater |
University of Minnesota (B.S. 1892, Ph.D. 1906) University of Cambridge (B.A. 1899) |
| Doctoral advisor | Henry T. Eddy |
| Other academic advisors | J. J. Thomson |
| Known for | Zeleny electroscope electrospray ion mobility |
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. His work is seen by some as a beginning to emergent technologies like liquid metal ion sources and electrospraying and electrospinning.