Nikola Tesla
Tesla's Biogaphy:

-Nikola Tesla was born on July 10th, 1856 in Smilijan Lika. Tesla was always interested in science and math as a child. He later went to college for physics and math, but soon realized his calling was electricity. Tesla worked for the Continental Edison Company and was their best employee. Here Nikola Tesla showed his genius, like Edison. Edison recognized Tesla for his incredible ability in electricitical engeneering and asked him to come to New York City to work beside him. There Tesla saw flaws in the edison bulb. He thought of his own way to recreate a new and more effective light bulb, using alternating currents instead of the direct current Edison had been using. Tesla figured out that electrical alternating currents would make electricity travel further on the wires than a direct current. Nikola then understood alternating currents were the future to electricity. Tesla quit the Continental Edison Company and in time started working for another company called Westing House. A war broke out between Westinghouse and Edison, because Edison didn't want to change. He also didn't want to lose his million dollar company to his old employee. Tesla used Edison lightbulbs to test his theory, but Edison soon patented his bulb and stopped Tesla from using them. Then Tesla created his own bulbs that were cheaper than Edison's and were used in a World Fair in 1893. Tesla clearly won the battle, and modern electricity uses the same principle of alternating currents.

-Tesla had many other inventions as well as alternating currents. After revising the lightbulb, Tesla then revised motors to follow the same law of an alternating current. Nikola Tesla found something called a rotating magnetic field which is now a princible in physics. This principle is used in most ac motors to keep the rotors turning. Two magnetic fields can be found in the motor, one is used electrically to rotate the stator and the other is used to attract and repel the stator. A stator is "the stationary portion of an electric generator or motor." One of Nikola's more famous inventions is the Tesla coil. The coil is a high-frequency air-transformer that steps electricity up to 100 million voltage. Tesla coils are unique because they carry extremely high voltages and create powerful electrical fields. All of Tesla's main inventions are currently used today, unchanged. Tesla died on January 2, 1943 penny-less.
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Interesting facts:
  • July 10th is Nikola Tesla's day
  • "Nikola Tesla corner" in Manhattan
  • Congressmen gave speeches about Tesla on the 134th anniversary on July 10th
  • Tesla was born on July 10th, 1856 in Lika

Quotes:" Let the future tell the truth, and evaluate each one according to his work and accomplishments. The present is theirs; the future, for which I have really worked, is mine"

"But I hope that it will also be demonstrated soon that in my experiments in the West I was not merely beholding a vision, but had caught sight of a great and profound truth.

Sited sources:
http://www.teslauniverse.com/nikola-tesla-quotes
http://dictionary.reference.com/browse/stator
http://www.teslasociety.com/teslacoil.htm
http://www.teslauniverse.com/nikola-tesla-timeline-1856-birth-of-tesla