Ányos István Jedlik (11.01.1800-13.12.1895) was a Hungarian physicist and a member of the Hungarian Academy of Sciences (1858). He was born in Szimő (now Zemné in Slovakia). He graduated from the Benedictine lyceum in Győr (1822). He worked as a gymnasium teacher, and from 1840 he was professor at the University of Pest.
His main work concerned electromagnetism. He constructed models of an electric motor (1827 — 28), discovered the principle of self-excitation (1858), built a multi-disc unipolar generator (1861) and improved the design of galvanic cells and accumulators.