Dreaming of Television

1. Dreaming of Television RTV 3007 • Intro to Television

2. 1820-1886 FIRST THERE WAS THE TELEGRAPH

3. A TIMELINE OF TELEGRAPHY • From the beginning of human history, we have attempted to communicate over long distances. First we used fire, smoke, bells, drums and, later, guns. In 1300 the semaphore was developed. In 1809 a simple telegraphic system was established in Bavaria. In 1828 the first telegraphy system was built in the US. In 1840 Samuel Morseinvented the Morse Code, which is still used worldwide.

4. TELEGRAPHY: THE VICTORIAN INTERNET

5. 1844-1888 TELEPHONY (AN ABBREVIATED ACCOUNT)

6. AN ABBREVIATED STORY OF TELEPHONY • In 1667Robert Hooke creates an acoustic string telephone. In 1844InnocenzoManzetti first suggests the idea of a speaking telegraph. In 1849Antonio Meucci demonstrates a telephonic device in Havana. In 1861Johann Philipp Reis transfers a spoken phrase electrically over 340 feet: “The horse does not eat cucumber salad.” From 1864-1870, both Meucciand Manzetticlaim to have invented a “speaking telegraph,” laying the groundwork for patent wars to come. In 1874, Alexander Graham Bell develops the theoretical concepts for the telephone. In 1876Bell utters “Mr. Watson come here, I need you.“ In 1876Elisha Gray and Bell file patents for the telephone on the same day. Bell’s patent is granted. In 1876TivadarPuskasinvents the telephone switchboard. In 1876Bell makes the first two-way long distance telephone call between Cambridge and Boston. In 1877 the first Telephone Exchange is established in Boston.

7. ALEXANDER GRAHAM BELL

8. FIRST SWITCHBOARDS

9. 1820-1886 RADIO technology is born

10. Radio: 80 years in the realizing • In 1820, Hans Omsteddiscovered the relationship between electricity and magnetism. In 1831Michael Faraday experimented on electromagnetic forces. In the 1860s and 1870s, James Clerk Maxwell experimented with electromagnetic waves (the foundation of the electromagnetic wireless spectrum). In 1875, Thomas Edison claimed to have transmitted sound accidentally, while working in his laboratory. In 1878David Hughes was the first to send and receive radio waves. In the 1880s, Heinrich Hertz showed that radio waves could be sent over long distances. In 1892, William Crookes published an article showing that radio waves could be used for wireless telegraphy. In 1894Sir Oliver Lodge showed that wireless radio waves could be used to send morse code. In 1895, Gugliemo Marconi sent the first radio transmission.

11. GUGLIEMO MARCONI

12. FIRST TECHNOLOGIES

13. FIRST TECHNOLOGIES

14. FIRST TECHNOLOGIES

15. EARLIEST VISIONS

16. 1880s THE DREAM OF TELEVISION

17. Television: the intersection of telegraphy, telephony and radio Radio Telephone TV Telegraph

18. Earliest Visions

19. Earliest Visions

20. Earliest Visions

21. EARLIEST VISIONS

22. AND SO IT BEGINS