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Humphry Davy André Marie Ampère

 
 


     


(Hans)  Jean Christian Ørsted


     

  
Rudkøbing ( island of Langeland)  14.August.1777  -Copenaghen 09.March.1851
1819 Electromagnetism
 
 
University professor of chemistry and physics in the Polytechnic of Copenaghen,  discoverer of electromagnetism