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Nikola Tesla

By Amy Liu. Nikola Tesla . ---Tesla’s recommendation letter from the director of a power plant in Germany which was addressed to Thomas Edison. “I know two great men. One is yourself, the other is the young man in front of you”. . Master of Lightning .

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Nikola Tesla

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  1. By Amy Liu Nikola Tesla

  2. ---Tesla’s recommendation letter from the director of a power plant in Germany which was addressed to Thomas Edison. “I know two great men. One is yourself, the other is the young man in front of you”.

  3. Master of Lightning • Nikola Tesla (Serbian ,10 July 1856 – 7 January 1943) was an inventor, mechanical engineer, and electrical engineer. Tesla's patents and theoretical work formed the basis of modern alternating current (AC) electric power systems. His most famous invention was the AC generator, and he was the forerunner in the electromagnetic energy and many other areas.

  4. Westinghouse and Tesla had built the AC-power Ames Hydroelectric Generating Plant and proved it effective. Niagara Falls

  5. Edison hired Tesla to work for his Edison Machine Works. Tesla's work for Edison began with simple electrical engineering and quickly progressed to solving some of the company's most difficult problems. Tesla was even offered the task of completely redesigning the Edison company's direct current generators. At the mean time, Tesla was also making a conception of alternating current which was considered impossible at that time

  6. Tesla claimed he was offered US$50,000 (~ US$1.1 million in 2007, adjusted for inflation)if he redesigned Edison's inefficient motor and generators, making a great improvement in both service and economy. But when Tesla inquired about the payment for his work, Edison replied, "Tesla, you don't understand our American humor," thus breaking his word. Tesla immediately quit his job when he was refused a raise from US$18 to US$25 per week.

  7. in the late 1880s Thomas Edison and Nikola Tesla had a war. It is also a war between direct current network and alternating current system. War of Currents!

  8. In 1888 • An AC motor is an electric motor that is driven by an alternating current. • It consists of two basic parts, an outside stationary stator having coils supplied with alternating current to produce a rotating magnetic field, and an inside rotor attached to the output shaft that is given a torque by the rotating field. Tesla’s invention: AC motor

  9. Initiated by the introduction of Tesla's motor in 1888 make both the efficient generation and long distance distribution of electrical energy possible DC: the electrical energy could be lost in long distance because the resistance of the wire consume some of its voltage. AC: only the magnitudes of the voltage and current in AC could be transformed by a transformer. The power remains constant, so as the magnitude of the voltage in the AC increases to extremely high and current decreases to very low according to P = V*I, the lost of voltage could be ignored according the Ohm’s law V= R*I. Second Industrial Revolution

  10. Apparently, Tesla wins!The AC network system could transfer electricity in long distance and nearly have no lost, and DC network system could only transfer electricity in a radius of one mile. Back to the War of Currents!

  11. Tomas Edison began to spread rumors about AC and treat Tesla as a heterodox. He did experiments to prove that AC was harmful. He also convinced some of the jails to use AC as an execution for the same reason.

  12. But it didn’t work . • In both economic and experimental reasons. • By the motivation of the huge financial benefits, the local power threaten Tesla to give up his right of the patent of AC system and make it free (because the power plant had to pay Tesla US$1 for one horse power) • Economic problem

  13. If Tesla didn’t give up his patent, he would already be a billionaire. Many of his patents and inventions are used by the contemporary enterprisers who gained huge amount of benefits by his patents. Tesla himself died in poverty, and his name was almost forgotten by the history.

  14. At the time of his death, Tesla had been working on the Teleforce weapon called 'death ray’, and it was considered as an extremely dangerous weapon. • He also invented other crazy dangerous things. • After his death, the FBI declared his papers to be top secret. The personal effects were sequestered on the advice of presidential advisers. J. Edgar Hoover declared the case most secret, because of the nature of Tesla's inventions and patents.

  15. Tesla's family and the Yugoslav embassy struggled with the American authorities to gain these items after his death because of the potential significance of some of his research. Eventually Mr. Kosanović won possession of the materials, which are now housed in the Nikola Tesla Museum.

  16. Tesla in the movie “The Prestige” Acted by David Bowie Recommendation 

  17. Thank you The End

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