The history of telecommunications
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Historical Time
line of telecommunications
The history of telecommunications
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Glossary | Scientists |
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Historical Time
line of telecommunications
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| By Sergio Arienti ® | |
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| 1644 | Production Vacuum |
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Evangelista Torricelli | |
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| 1817 | Discovery of selenium | |
Jöns Jacob Berzelius | |
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| 1832 | Experimental Telegraph galvanometric | |
C.F. Gauss | |
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G.E. Weber | ||
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| 1837 |
Quadrant Telegraph
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Cooke | |
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Charles Wheatstone | ||
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| 1837 | Relay |
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Joseph Henry | |
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| 1838 | Experiments with electric shock in rarefied gas |
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Michael Faraday | |
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| 1838 | Telegraph with a wire | |
K. Steinheil | |
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| 1839 | Photo voltaic Effect | Alexandre Becquerel | ||
| 1844 | Distribution of the telegraph and Morse code | |
Samuel Finley Breese Morse | |
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| 1851 | Spools of Ruhmkorff | Heinrich Daniel Ruhmkorff | ||
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| 1853 | Telegraph Duplex Transmission |
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Wilhelm Julius Gintl | |
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| 1855 | A tube cathode ray tube (prototype) - pump vacuum production |
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Heinrich Geissler | |
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A tube cathode ray tube (study of discharges in the rarefied gas) | Julius Plücker | ||
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| 1864 |
The theory of electromagnetic waves
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James Clerk Maxwell | |
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| 1866 | It poses first transatlantic telegraphic hollow (31.03.1866) | |
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| 1869 | RC tube Hittorf (experimentation) |
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Johann Wilhelm Hittorf | |
| 1870 | Code Baudot |
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Émile Baudot | |
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| 1871 | Invention phone |
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Antonio Meucci | |
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| 1873 | Research on photo conductivity of selenium |
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Willoughby Smith | |
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| 1875 | Distribution of the phone |
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Alexander Graham Bell | |
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| 1879 | Microphone coal |
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Thomas Alva Edison | |
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| 1879 | RC tube Crookes (1879) |
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William Crookes | |
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| 1881 | LE THEATROPHONE |
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Clément Ader | |
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| 1884 | Detector of electromagnetic waves (coherer) |
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Temistocle Calzecchi Onesti | |
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| 1884 | Television mechanics (Elektrisches Teleskop) |
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Paul Nipkow | |
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| 1887 | Experimentation electromagnetic waves |
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Heinrich Rudolph Hertz | |
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| 1888 | Detector of electromagnetic waves (coherer) |
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Désiré Edouard Branly | |
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| 1888 | R.C.Tube Goldstein (1888- ray channel) |
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Eugen Goldstein | |
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| 1891 | Automatic phone switching |
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Almon Brown Strowger | |
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| 1891 | A tube cathode ray tube |
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Heinrich Rudolph Hertz | |
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| 1894 | R.C.Tube Lenard (1894) |
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Philip Eduard Anton Lenard | |
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| 1895 | Wireless Telegraphy |
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Guglielmo Marconi | |
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| 1897 | A tube cathode ray tube (oscilloscope) |
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Karl Ferdinand Braun | |
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| 1898 | Detector of electromagnetic waves (coherer) |
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Oliver Joseph Lodge | |
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| 1901 | Detector crystal of Galena (diode to galena) |
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Jagadis Chunder Bose | |
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| 1904 | Diode |
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John Ambrose Fleming | |
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| 1906 | Radio AM (AMPLITUDE MODULATION) |
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Reginald Aubrey Fessenden | |
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| 1906 | Amplifier -Triode (audion) |
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Lee De Forest | |
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| 1906 | Detector crystal silicon |
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Greenleaf Whittier Pickard | |
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| 1906 | Detector crystal of carborundum |
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Henry Harrison Chase Dunwoody | |
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| 1913 | Circuits regeneration or Receiver jet |
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Edwin Howard Armstrong | |
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| 1918 | Superheterodine |
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Lucien Levy | |
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| 1923 | Electronic Television (prototype) |
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Vladimir Zworykin | |
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| 1924 | Television (mechanical) |
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John Logie Baird | |
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| 1925 | Iconoscope (pipe from shooting) |
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Vladimir Zworykin | |
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| 1932 | Tube cathodique | |||
| 1933 | Radio FM ( FREQUENCY MODULATION) |
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Edwin Howard Armstrong | |
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| 1936 |
Photo
multiplier
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Vladimir Zworykin | |
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| 1944 | Inter carrier |
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Louis W. Parker | |
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| 1947 | Transistor |
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William Schokley | |
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John Bardeen | ||
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Walter Brattain | |
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| 1958 | Integrated circuits |
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Jack Kilbi | |
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Robert N. Noyce | ||
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| 1971 | Microprocessor |
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Federico Faggin | |
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Marcian Edward Hoff | |
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Stanley Mazor | |
Last update 01/02/2008 |
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