2. The score is 1882. Shortly after Edison invented direct current (DC), he invented alternating current (AC), made the world's first alternator, and founded multiphase transmission technology. He is an unparalleled genius, a great man forgotten by the world. He invented the alternator.
3. 1943 65438+ He died of heart failure in new york Hotel on1October 5-7 at the age of 86. His patents and theoretical work are based on modern AC power systems, including multiphase distribution systems and alternators, which helped him bring about the second industrial revolution.