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An overview of Nikola Tesla's contributions to radio development, including his invention of the Tesla coil, the use of four tuned circuits, and the development of a receiver with rectification and integration. The document also mentions Tesla's lectures and exhibits, as well as his unfinished projects and visions. The document was published in the Microwave Review in 2001, and was written by Aleksandar Marinčić with contributions from professors and researchers from various universities.
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WHO INVENTED the TWENTIETH CENTURY
Aleksandar Marinčić
Profesor Robert Lomas, Bradford University:
“Nikola Tesla – Forgotten Genius of Electricity”,
Participants from abroad:
Prof. Jasmina Vujić, California University, Berkeley Dr Đurađ Budimir, Westminster University, London K.L. Corum, Dr J.F. Corum USA John W. Wagner Elementary School, USA
Radio development
James Clerk Maxwell - electromagnetic waves (theoretical prediction, 1865.) Heinrich Hertz - experimental verification of Maxwell’s theory (1888.) Nikola Tesla – continuous wave Oliver Lodge - “wireless telegraph” (1894.) G. Marconi – modification of Hertz apparatus (1896.)
Tesla’s contributions to radio development Generators of h.f.currents – machine and spark generators (Tesla coil), 1891. Coupling of generator to antenna – ground system (1892./ 3 .) System of four tuned circuits, 189 7. Receiver with rectification of h.f. current and integration and damp, 1 900. Using two (or three) carriers to provide protective coding and suppression of interference and receiver with “AND” circuit 1 900.
Tesla’s lecture at Columbia College, 1891
Tesla’s spark generator with ‘Tesla coil’ (2)
Coupling of h.f. generator to antenna-ground (Tesla, 1892.)
World Exhibition, Chicago, 1893.
Tesla’s exhibits in Chicago, 1893
izolovano telo
uzemljenje
Marconi’s transmitter (1896.)
Tesla’s system of four tuned circuits (1897.)
Colorado Springs Laboratory (1899.)
Tesla u laboratoriji u Kolorado Springsu