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Štefan Anián Jedlík
Catalogue Number:  202
Stamp Design:  Karol Felix
Stamp Drawing:  Martin Činovský
Stamp Engraving:  František Horniak
Date of Issue:  January 11, 2000
Printing:  Postal Stationery Printing House, Prague, Czech Republic
Print Technology:  Rotary recess printing combined with recess printing
Size of Impression:  30.0 mm x 23.0 mm
Print Run:  3,000,000
FDC Design:  Karol Felix
FDC Engraving:  František Horniak
Cancellation Design:  Karol Felix
FDC Printing:  Postal Stationery Printing House, Prague, Czech Republic
FDC Print Technology:  Recess printing from flat plates
FDC Print Run:  10,000

Štefan Anián Jedlík (born 11th January 1800 in Zemné, county Nitra - died 12th December 1897 in Gyor, Hungary) - a physicist, inventor, pedagogue, since 1858 a member of the Hungarian Academy of Sciences.

After completion of the secondary school studies in Trnava and Bratislava, he has entered into the Benedictian order. He studied theology in the church seminar in Pannohalma and concurrently, he studied mathematics and physics at the Faculty of Philosophy of the University of Budapest, where he obtained the degree Doctor of Philosophy. In the period 1821 - 1829 he has acted as the professor of physics at the Benedictinian grammar school in Györ. From 1829 until 1840 he has acted as the professor of physics at the royal academy of sciences in Bratislava. From 1848 until 1878 he was appointed as the Professor and from 1863 he was appointed as Dean of the University of Budapest.

He has worked in experimental physics, especially in the field of electrophysics. In 1828 he constructed the moving magnet-electric motor, in 1840 he constructed a prototype of the magnetic pin, which has later become a principal component of the electric locomotive. In 1859 - 61 he constructed a prototype of the unipolar dynamo - his most outstanding invention. Among his other inventions there are a new type of capacitor, a tube lightning collector, the optical grating cutter, and he conducted valuable research studies in the area of physics and optics as well as the experimental and pedagogical work.

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