Nikola Tesla
AC electricity and the induction motor. Powered the modern world.
Nikola Tesla's alternating current (AC) electrical system powers virtually every home on Earth today, decisively winning the War of Currents against Edison's inefficient DC infrastructure. His AC induction motor and polyphase distribution system enabled large-scale generation and long-distance transmission, cutting energy losses by roughly 70% compared to direct current. He also pioneered radio communication and wireless energy transmission, laying conceptual groundwork for fluorescent lighting and radar. The transformative scope of his work—from the first hydroelectric plant at Niagara Falls to modern power networks—makes him the most immediately influential inventor-scientist on this list, though his legacy was long overshadowed by more recognized peers.
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