Nikola Tesla was a great dreamer, whose ideas found their application only 100 years after their appearance. Despite the fact that it was he who came up with the idea of creating the alternating current motor, thanks to which electricity was brought to homes and factories of the 20th century, this Serbian-American scientist died in poverty, forgotten by his contemporaries. The inventions and discoveries that Tesla worked on are countless: a remote control, a vertical take-off airplane, and a wireless lamp; He also developed the basics of radar, became a forerunner of radio astronomy, and conducted experiments in cryogenics. His main goal was to create a technology for transmitting electrical energy and information to anywhere on the planet without wires - this idea cost him his fortune and reputation.