Established own lab and obtained patents on poly phase motors, dynamos, transformers for a complete alternating current power system. Formed alliance with George Westinghouse, who bought poly phase patents for $1 million plus royalty. With Westinghouse, engaged in struggle against Edison to convince public of efficiency and safety of AC over DC, and succeeded in getting Alternating Current accepted as the electric power system worldwide.
Also with Westinghouse, lit the Chicago World's Fair, built Niagara Falls hydropower plant, and installed AC - Alternating Current - systems at Colorado silver mines, and other industries. By turn of the century was lifted to celebrity status comparable to Edison's as media promoted him along with the expanding electric power industry. Experimenting independently in Manhattan lab, developed and patented electric devices based on superior capabilities of high-potential, high-frequency currents: Tesla coil, radio, high-frequency lighting, x-rays, electrotherapy. Suffered lab fire. Rebuilt, and continued. Moved lab to Colorado Springs for about one year (1899). Built huge magnifying transmitter. Experimented with wireless power, radio, and earth resonance. Studied lightning. Created lightning. Returned to New York. With encouragement of financier J.P. Morgan, promoted a World System of radio broadcasting utilizing magnifying transmitters. Built huge tower for magnifying transmitter at Wardenclyffe, Long Island as first station in World System. Received enough from Morgan to bring station within sight of completion, then funds cut off, project collapsed.
Continued to invent into the 1920's, but flow of patents meager compared to earlier torrent, which amounted to some 700 patents worldwide. High-frequency inventions ignored by established technology, as were disk turbine, free energy receiver, and other inventions. Shut out by media except for birthday press conferences. At these conferences, predicted microwaves, TV, beam technologies, cosmic-ray motor, interplanetary communications, and wave-interference devices that since have been named the Tesla howitzer and the Tesla shield. In the 1930's, he was involved in wireless power projects in Quebec. Last birthday media appearance in 1940.
Died privately and peacefully at 87 in New York hotel room from no apparent cause in particular. Personal papers, including copious lab notes, impounded by U.S. Government, surfaced many years later at the "Tesla Museum", in Belgrade, Yugoslavia. Of these notes, only a fragment, "Colorado Springs Notes", has been published by the Museum.
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Do we really want the one thing that gives us its resources unconditionally to suffer even more than it is suffering now? Nature, is a part of our being from the earliest human days. We respect Nature and it gives us its bounty, but in the recent past greedy money hungry corporations have made us all so destructive, so wasteful.