Title: Nikola Tesla
Content:  Nikola Tesla (, ; 1856 – 7 January 1943) was a Serbian-American  inventor, electrical engineer, mechanical engineer, and futurist best known for his contributions to the design of the modern alternating current (AC) electricity supply system. Born and raised in the Austrian Empire, Tesla studied engineering and physics in the 1870s without receiving a degree, gaining practical experience in the early 1880s working in telephony and at Continental Edison in the new electric power industry. In 1884 he emigrated to the United States, where he became a naturalized citizen. He worked for a short time at the Edison Machine Works in 
Title: Wizard: The Life and Times of Nikola Tesla
Content:  Seifer follows the life of Nikola Tesla, the Serbian American Invention|inventor, electrical engineer, mechanical engineer, physicist, and futurist. He covers the high points of the inventor's life through his designs used in the modern alternating current system, experimentation with high frequency current and wireless power transmission, wireless remote control, X-ray imaging, and Tesla's "death ray". Seifer goes on to cover Tesla's downfall, attributing it to Tesla's megalomaniacal, neurotic, self-destructive tendencies, and Tesla's interactions with financier J. Pierpont Morgan. Seifer based his book largely on primary sourced documents including Tesla's writings and patents. Also including papers of Tesla's in the Tesla archives in Yugoslavia as well as manuscripts in the United States. Seifer filed Freedom of Information Act requests to get documents from the FBI and other United States government agencies.
Title: Nikola Tesla
Content:  York City before he struck out on his own. With the help of partners to finance and market his ideas, Tesla set up laboratories and companies in New York to develop a range of electrical and mechanical devices. His alternating current (AC) induction motor and related polyphase AC patents, licensed by Westinghouse Electric in 1888, earned him a considerable amount of money and became the cornerstone of the polyphase system which that company eventually marketed. Attempting to develop inventions he could patent and market, Tesla conducted a range of experiments with mechanical oscillators/generators, electrical discharge tubes, and early X-ray imaging. He 
Title: Nikola Tesla
Content:  built a wireless-controlled boat, one of the first-ever exhibited. Tesla became well known as an inventor and demonstrated his achievements to celebrities and wealthy patrons at his lab, and was noted for his showmanship at public lectures. Throughout the 1890s, Tesla pursued his ideas for wireless lighting and worldwide wireless electric power distribution in his high-voltage, high-frequency power experiments in New York and Colorado Springs. In 1893, he made pronouncements on the possibility of wireless communication with his devices. Tesla tried to put these ideas to practical use in his unfinished Wardenclyffe Tower project, an intercontinental wireless communication and power transmitter, 
Title: Nikola Tesla
Content:  ran out of funding before he could complete it. After Wardenclyffe, Tesla experimented with a series of inventions in the 1910s and 1920s with varying degrees of success. Having spent most of his money, Tesla lived in a series of New York hotels, leaving behind unpaid bills. He died in New York City in January 1943. Tesla's work fell into relative obscurity following his death, until 1960, when the General Conference on Weights and Measures named the SI unit of magnetic flux density the tesla in his honor. There has been a resurgence in popular interest in Tesla since the 1990s.
Title: 2244 Tesla
Content:  This minor planet was named in memory of Serbian-American electrical engineer and inventor Nikola Tesla (1856–1943). He is best known for his contributions to the design of the modern alternating current (AC) electricity supply system. The lunar crater Tesla is also named in his honor. The approved naming citation was published by the Minor Planet Center on 7 March 1985 (M.P.C. 9477).
Title: Tesla Electric Light and Manufacturing
Content: Tesla: Life and legacy: Coming to America, PBS. ; Stock certificate for the Tesla Electric Light and Manufacturing Company. Tesla: Life and legacy: Coming to America, PBS. ; "Nikola Tesla: Research in High Frequency Phenomena, 1894." Nikola Tesla: Recognized Genius. N.p., n.d. Web. 31 Jan. 2014. <https://web.archive.org/web/20140213181818/http://www.fi.edu/learn/case-files/tesla/genius.html>. 
Title: Nikola Tesla
Content:  From the 1890s through 1906, Tesla spent a great deal of his time and fortune on a series of projects trying to develop the transmission of electrical power without wires. It was an expansion of his idea of using coils to transmit power that he had been demonstrating in wireless lighting. He saw this as not only a way to transmit large amounts of power around the world but also, as he had pointed out in his earlier lectures, a way to transmit worldwide communications. At the time Tesla was formulating his ideas, there was no feasible way to wirelessly transmit communication signals over 
Title: Nikola Tesla
Content:   After 1890, Tesla experimented with transmitting power by inductive and capacitive coupling using high AC voltages generated with his Tesla coil. He attempted to develop a wireless lighting system based on near-field inductive and capacitive coupling and conducted a series of public demonstrations where he lit Geissler tubes and even incandescent light bulbs from across a stage. He spent most of the decade working on variations of this new form of lighting with the help of various investors but none of the ventures succeeded in making a commercial product out of his findings. In 1893 at St. Louis, Missouri, the Franklin Institute in Philadelphia, Pennsylvania and the National Electric Light Association, Tesla told onlookers that he was sure a system like his could eventually conduct "intelligible signals or perhaps even power to any distance without the use of wires" by conducting it through the Earth. Tesla served as a vice-president of the American Institute of Electrical Engineers from 1892 to 1894, the forerunner of the modern-day IEEE (along with the Institute of Radio Engineers).
Title: Gymnasium Karlovac
Content:  The inventor, electrical and mechanical engineer Nikola Tesla, who attended the school from 1870 until 1873 (age of 14 to 17), attributes his interest in electricity to what he learned at Karlovac. In his 1919 autobiography My Inventions he wrote that demonstrations by his "professor of physics" sparked his interest in this "mysterious phenomena" and made him want "to know more of this wonderful force". Stricken with malaria shortly after his arrival in the mosquito-infested swampy lowlands of Karlovac, he was bedridden at times and often took his school books home to read and memorize when he was unable to attend class. He graduated with honours from the four-year course in only three years. Other notable alumni include actress Zrinka Cvitešić, poet and writer Ivan Goran Kovačić, politician and founder of the Croatian Peasant Party Stjepan Radić and explorers and brothers Mirko and Stjepan Seljan.

Question: what was nikola tesla known for?
Answer: Inventor.