who is nikola tesla
Nikola Tesla (10 July 1856 â 7 January 1943) was a physicist, inventor, and electrical engineer. An ethnic Serb born in the Military Frontier (present-day Croatia), he was a subject of the Austrian Empire who later became an American citizen.ikola Tesla (10 July 1856 â 7 January 1943) was a physicist, inventor, and electrical engineer. An ethnic Serb born in the Military Frontier (present-day Croatia), he was a subject of the Austrian Empire who later became an American citizen.