Nikola tesla (born in July 1856- 1943, 1856) is a world-famous inventor, physicist, mechanical engineer and electrical engineer. He was born in Croatia (later incorporated into the Austrian Empire) and is of Serbian descent. Tesla is considered as an important inventor in history. His contributions to electricity and magnetism at the end of 19 and the beginning of the 20th century are also well known. His patents and theoretical work forms are based on modern AC systems, including multiphase distribution systems and AC motors, which helped him bring about the second industrial revolution.
He invented the alternator, and Edison loved the DC generator he invented and tried his best to suppress Tesla. Tesla would be the richest man in the world if it hadn't been forced to give up the patent for free use of alternating current ($2.53 per horsepower). His dream is to provide inexhaustible energy for the world (he insists that everyone is equal and the world is one). His life is miserable, and people sympathize with him very much, but he is an unparalleled genius. Unfortunately, not many people remember him.