Insert your text Nikola Tesla Sitting Next to a Tesla Coil. History, www.history.com/news/
6-brilliant-tesla-inventions-never-built.

AC Motor

This is by far his most impactful invention. The AC current is one of 2 types of current. Direct current (DC) and Alternating current (AC). Direct current is transmitting power in a direct way, while Alternating current is 2 currents moving in alternating arcs that are 90° out of phase. This means that when one current is at max flow, the other is at zero flow, and vice versa. Nikola Tesla was the first person to make a motor which uses Alternating current. It was even called the Tesla motor for some time. AC motors now use 3 currents while back then, they used only 2. The AC motors when Tesla invented them used 2 magnets rotating inside 4 coils, which makes 2 currents. Now, AC motors use 3 magnets and 6 coils, making 3 currents.

Other Inventions

Nikola Tesla also invented many other things like the tesla coil, rotating magnetic fields, and the radio. The rotating magnetic field was invented when one of Tesla's professors told him that a motor that generated AC was impossible. Because of this, Tesla began to question whether this was true or not. This resulted in his genious idea of the rotating magnetic field. The tesla coil is his most dramatic invention and it was used for dramatic showcases that he held. The tesla coil uses polyphase alternating current that makes high voltages of power. The radio was invented when Nikola Tesla sent a wireless transmission from his house to a boat that was on the Hudson river. This was an important invention that shapes the world we live in today. Even though Tesla technically invented everything asociated with the radio, another inventor took credit. His name was Guglielmo Marconi. Nikola Tesla has had many of his inventions stolen from him. He resonded to this matter in a simple and wise sentence. "I don’t care that they stole my idea … I care that they don’t have any of their own." -Nikola Tesla.