In this paper I will be telling about the life of Nikola Tesla and the achievements he made to the world and the conflict between him and AC DC, and his relationship with Thomas Edison To start off my paper I will be defining AC DC. AC is an electric current that reverses its direction many times a second at regular intervals, typically used in power supplies. DC an electric current flowing in one direction only. The feud between Nikola tesla and Thomas Edison was tense. It all starTed when Nikola started working for Edison in 1892.He sent his work into Edison but Edison thought his ideas were utterly impractical.They had tworked different methods of working Edison would rely highly on experimentation when tesla used