19th Century Communication Technology

Engravings showcasing early telecommunication methods, including telegraphs and lathes, depicting historical developments in technology.

Christian Oersted, at the university of Copenhagen,  discovers the deviation of a compass needle when subjected  to an enclosed electric current     Date: 1820
Christian Oersted, at the university of Copenhagen, discovers the deviation of a compass needle when subjected to an enclosed electric current Date: 1820