Patent Drawing of Engine - Nicola Tesla Patent - . Public domain image
Резюме
Illustration of Canadian Patent 135174.
Public domain photograph of electrical equipment, power lines, engine, free to use, no copyright restrictions image - Picryl description
Nikola Tesla (1856–1943) Serbian American inventor and engineer who discovered and patented the rotating magnetic field, the basis of most alternating-current machinery. He also developed the three-phase system of electric power transmission. He immigrated to the United States in 1884 and sold the patent rights to his system of alternating-current dynamos, transformers, and motors to George Westinghouse.
Дата
1911
Источник
Wikimedia Commons
Информация о правах
public domain