Nikola Tesla Books
for the transmission of electrical power and electrification was presented. A significant part of the exhibition was the section in which the Westinghouse company erected a large electric power plant with twelve of Tesla's two-phase generators, having a total output of 6,000 kilowatts. Approximately 80,000 incandescent lamps and 5,000 arc lamps were installed across the vast grounds of the exhibition. In a special section, the Westinghouse company displayed numerous Tesla apparatuses and machines that illustrated the historical development of Tesla's work, beginning in 1882.
Another great achievement of Tesla was the technique of so-called "high voltages." By means of his transformer using oil insulation, he had already achieved voltages of several hundred thousand volts by 1891, and later perfected this further, reaching voltages of several million volts. In this way, he laid the foundation of a very important technical field, without which modern electrical engineering can scarcely be imagined.
In 1891, Tesla drew attention to the physiological effects of high-frequency currents, and on this principle methods of treatment were developed that are today known as "d'Arsonvalization," "diathermy," and "shortwave therapy."
It should also be mentioned that in 1894 Thomas Commerford Martin wrote a major book in English about Tesla and his work, entitled "The Inventions, Researches, and Writings of Nikola Tesla," published in New York, which the author dedicated to Tesla's "countrymen." As early as the following year, the book was translated into German. Even today, it serves as a rich source of knowledge in the field of electrical engineering.
To characterize Tesla's personality and the circumstances of that time in America, we present several of his private letters from the years 1892-1894, which require no commentary. All the letters were written in Cyrillic,
