View source for Štefan Anián Jedlík

===Electromotor ('Electromagnetic rotor')===
[[Image:Jedlik_electromotor_1829.jpg|thumb|350px|Jedlík's electromotor, 1829.]]
In 1827, Jedlik started experimenting with electromagnetic rotating devices which he later called ''villamdelejes forgony'' [elektromagnetic rotor]. He was familiar with similar experiments by Oersted, Faraday, and Barlow through various journals, including ''Journal für Physik und Chemie'' (ed. Schweigger),  ''Annalen der Physik und Chemie'' (eds. Poggendorff, Gilbert), ''Zeitschrift für Physik und Mathematik'' (eds. Baumgartner, Ettingshausen), ''Polytechnisches  Journal'' (ed. Dingler), as well as Gehler's ''Physikalisches Wörterbuch''. In 1828 he demonstrated the first device which contained the three main components of practical direct current motors: the stator, rotor and commutator. Unlike in other electromotors of the time, in his prototype both the stationary and the revolving parts were electromagnetic ([http://www.youtube.com/watch?v=QFz70sdPf-8 video], [http://www.youtube.com/watch?v=rZwA0O6AB2w video]). The motor and Jedlik's operating instructions are kept at the Museum of Applied Arts in Budapest. It still works perfectly today.