Nikola Tesla’s pioneering work in electrical engineering laid the foundation for modern power distribution and wireless communication. In 1888, he patented the polyphase alternating current (AC) motor, a breakthrough that utilized rotating magnetic fields to transmit electricity more efficiently than the direct current (DC) systems of the era. This technology was most famously applied at Niagara Falls, where Tesla and George Westinghouse constructed the world’s first major hydroelectric power plant. By successfully transmitting electricity to Buffalo, New York, in 1896, the project definitively proved the superiority of AC for long-distance power grids. Tesla's innovative spirit extended beyond the grid; he demonstrated the first wireless remote-controlled boat in 1898 and pioneered neon lighting by bending gas-filled tubes into the names of famous scientists for the 1893 World’s Columbian Exposition.

Known as much for his eccentricities as his brilliance, Tesla lived with intense compulsions, most notably a lifelong fixation on the number three and its multiples. His daily routines were governed by these patterns, including walking around a city block three times before entering a building and insisting on exactly 18 fresh towels in his hotel suite. While legends persisted about a pocket-sized "earthquake machine" capable of leveling skyscrapers, the reality was a mechanical oscillator that caused localized vibrations and a police visit rather than structural damage. Tesla’s enduring influence on the scientific community is immortalized through the "Tesla" (T), the international unit of magnetic flux density named in his honor in 1960, which remains the standard for measuring magnetic strength in technologies ranging from simple refrigerator magnets to advanced MRI machines.

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