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This article contains additional biographical information about Nikola Tesla that is not on the main page.

Early years

Tesla was born "at the stroke of midnight" with lightning striking during a summer storm. He was born in Smiljani near Gospić, Lika, (the a Military Frontier of Austro-Hungarian Empire, now in Croatia). The midwife commented, "He'll be a child of the storm," to which his mother replied, "No, of light." Tesla was baptised in the Old Slavonic Church rite. His Baptism Certificate reports that he was born on June 28 (Julian calendar; July 10 in the Gregorian calendar), and christened by the Serb orthodox priest, Toma Oklobdžija.

His Serb father, the Rev. Milutin Tesla, was a priest in the Orthodox Metropolitanate of Karlovci which gathered to Serbs of the "Greek-rite" as they were legally referred to in Austria-Hungary at the time. His mother, Đuka Mandić, from a prominent Serb family of the Banija, made home craft tools. He was one of five children, having one brother and three sisters. His godfather, Jovan Drenovac, was a Captain in the Krajina army. His family moved to Gospić in 1862. Tesla went to school in Karlovac (Austria-Hungary), then studied electrical engineering at the Austria Politechnic in Graz, Austria (1875). While there, he studied the uses of alternating current. He also developed a telephone repeater (or amplifier).

In 1881 he moved to Budapest to work for the telegraph company, American Telephone Company. On the opening of the telephone exchange in Budapest, 1881, Tesla became the chief electrician to the telephone company, later engineer to the Yugoslav government and the country's first telephone system. Tesla invented a precursor to modern wireless telephone, known as a telephone repeater](or sometimes an amplifier). The device could act as an audio speaker (not an audio transducer). The device had its resonance tuned to a particular frequency of other repeaters to communicate between each. In 1916, Tesla described the prior developed audio transducers. According to Tesla, it was the "... implest ways the low frequency gave audible notes. placed a conductor, a wire or a coil, and then Tesla would get a note characteristics of the audible note". The audible sounds were of the quality of the telephones diaphragms of that period of time. The invention was never patented nor released publicly (till years later by Tesla himself). The device also contained the characteristics of modern wireless telephones.

For a while he stayed in Maribor. He was employed at his first job as an assistant engineer. Tesla suffered a nervous breakdown during this time. In 1882 he moved to Paris to work as an engineer for the Continental Edison Company. He worked designing improvements to electric equipment. In the same year, Tesla conceived of the induction motor and began developing various devices that use rotating magnetic fields (for which he received patents in 1888). Tesla visualized the rotating fields and thereby designed the induction motor. Tesla hastened from Paris to his mother's side as she lay dying, arriving hours before her death in 1882. Her last words to him were, "You've arrived, Nidzo, my pride." After her death, Tesla fell ill. He spent two to three weeks recuperating in Gospić and Tomingaj. All his life, Tesla kept a home-spun embroidered travel bag from his mother.

Education

• Fluent in seven languages (English, Serbian, Czech, Hungarian, French, German, Italian)
• Elementary school: Gospić (Austria-Hungary)
• Secondary school: Karlovac (Austria-Hungary)

• Undergraduate
  • Baccalaureate of Physics: Austrian Polytechnic Institute (Graz)
  • Baccalaureate of Mathematics: Austrian Polytechnic Institute (Graz)
  • Baccalaureate of Mechanical Engineering: Austrian Polytechnic Institute (Graz)
  • Baccalaureate of Electrical Engineering: Austrian Polytechnic Institute (Graz)

• Graduate studies
  • PhD in Physics: University of Prague (Prague)