The Tesla coil is a resonant transformer circuit designed by Nikola Tesla in the late 19th century. It is used to produce high-voltage, high-frequency alternating current electricity, which can be used for a variety of purposes, including lighting, wireless power transmission, and medical applications.

Induction motor

The induction motor is an alternating-current (AC) electric motor that converts electrical energy into mechanical energy. It is based on the principle of electromagnetic induction, in which a changing magnetic field induces an electric current in a conductor. Induction motors are widely used in a variety of applications, including industrial machinery, appliances, and vehicles.

Fluorescent lighting

Fluorescent lighting is a type of electric lighting that uses a fluorescent lamp to produce light. Fluorescent lamps contain a mixture of mercury vapor and a phosphor coating, which emits light when excited by the mercury vapor. Fluorescent lighting is more energy-efficient than incandescent lighting, and it is also used in a variety of applications, including commercial, industrial, and residential settings.

Radio communication

Nikola Tesla is also credited with being one of the pioneers of radio communication. He conducted a series of experiments in the late 19th and early 20th centuries that demonstrated the possibility of wireless communication. Tesla's work laid the foundation for the development of radio and other wireless technologies.

Turbines

Tesla spent a good part of his early life working with turbine machinery, which would influence some of his later work. He spent over a year designing a steam turbine for Westinghouse, in which he improved design and fuel efficiency through the use of new materials and better techniques. This turbine used a single-nozzle steam valve to increase velocity, improving efficiency. It also used a high-quality carbon composite in its construction, improving upon prior turbines built with inferior iron.