Nikola Tesla was an inventor, electrical engineer, mechanical engineer, and futurist who lived from 1856 to 1943 and was of Serbian and American descent. He made important contributions to the growth of modern electrical technology. Many people think he was one of the smartest and most creative engineers ever. He is famous for his groundbreaking work in alternating current (AC) electricity, wireless communication, and many other important inventions and discoveries. Developing and promoting alternating current (AC) electricity is without a question Tesla's most well-known invention. AC energy is commonplace now, but when it came out in the late 1800s to compete with Thomas Edison's direct current (DC) system, it was a completely new idea. Transformers were used in Tesla's AC system to change the voltage from one level to another. This allowed electricity to be sent over long distances with little energy loss. DC, on the other hand, had a short range and wasn't very efficient. In the end, Tesla's AC method won the "War of Currents" and became the standard way to make and send electricity around the world. Tesla made important advances to AC technology by creating the AC induction motor, which is used in many home appliances and business machines. The modern electrical power grid was built on his work on polyphase AC systems, which made it possible for energy to be efficiently generated, sent, and distributed over long distances. Tesla came up with a lot of other important ideas and inventions besides AC power. Tesla Coil is the basic idea behind many modern radio transmission devices and is used to make high-frequency, high-voltage electricity. Radio Waves, Tesla did groundbreaking work on the transmission of electromagnetic waves, which made it possible for wireless devices to be used for communication. Tesla was one of the first people to make discoveries about X-rays, but he didn't work on developing them as much as Wilhelm Roentgen did. One of the first remote controls in the world was made by Tesla, who showed how it worked by moving a small boat. During his lifetime, Tesla was unable to fully achieve his vision of a world where electricity could be sent wirelessly. He had big plans for wireless power transmission. Nikola Tesla's work has had a huge and long-lasting effect on the world.