The brilliant Nikola Tesla envisioned smart phones and wireless technology in 1901, could perform calculus in his head, and registered more than 300 patents. Tesla was also obsessive compulsive and rarely slept more than two hours. He hated round objects, jewelry and hair, and polished each point of the dining room with exactly 18 napkins before dining. Learn more about the mysterious genius.
Written by Curiosity Staff September 29, 2014
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