Nicola Tesla - Biography -

"Tesla had a keen memory and ability to visualize and construct complicated objects in his mind's eye. While working on his first job with the American Telephone Company in Budapest in 1880, Tesla suffered a nervous breakdown in which he claimed to suffer from a Edgar Allen Poe-like hypersensitivity of perception (Hunt and Draper 1991, p. 32). After he recovered, he was walking with a friend when the idea for the polyphase system of generating alternating current suddenly occurred to him. As of yet, he did not possess the means to actually build the necessary equipment........"

http://scienceworld.wolfram.com/biography/Tesla.html

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