Nikola Tesla (10 July 1856 – 7 January 1943) was a Serbian-American inventor, electrical engineer, mechanical engineer, and futurist. He is known as “the man who invented the twentieth century” and for his contributions to the design of the modern alternating current (AC) electricity supply system. Beyond his impressive work, Tesla had an eccentric personal life. He claimed to have never slept for more than two hours at a time, and he memorized entire books, visualized entire inventions, and fostered an obsession with pigeons. He is rumored to have figured out a way to provide free energy to everyone on Earth by putting a rod in the ground.
When Einstein was asked how it felt to be the smartest man alive, he replied, “I’don’t Know – you’ll have to ask Nikola Tesla.”