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The Electric Telegraph

The Electric Telegraph. By: Kelsey Garrison. Forms of long distance communication before telegraph. Smoke signals . Semaphore. Contributors to the idea. Claude Chappe (1794) Samuel Soemmering (1809) Carl Gauss and Wilhelm Weber (1833) William Cooke and Charles Wheatstone (1837)

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The Electric Telegraph

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  1. The Electric Telegraph By: Kelsey Garrison

  2. Forms of long distance communication before telegraph • Smoke signals • Semaphore

  3. Contributors to the idea • Claude Chappe (1794) • Samuel Soemmering (1809) • Carl Gauss and Wilhelm Weber (1833) • William Cooke and Charles Wheatstone (1837) • Samuel Morse and Alfred Vail (1837)

  4. Telegraph models from each inventor • Claude Chappe • Samuel Soemmering

  5. continued • Carl Gauss and Wilhelm Weber • William Cooke and Charles Wheatstone

  6. continued • Samuel Morse and Alfred Vail

  7. Who gets the credit? • Samuel Morse and Alfred Vail Samuel Morse Alfred Vail

  8. Morse code • A dot-and-dash code that used different numbers to represent the letters of the English alphabet and the ten digits. • The dots and dashes were also called dits and dahs.

  9. First telegraph message • The first telegraph message was sent on May 24, 1844 and read, “What hath God wrought!”

  10. First Telegraph line • Morse received a grant from Congress in 1843 to construct a telegraph line between Washington, D.C. and Baltimore, Maryland

  11. Telegraph Company • Western Union built its first transcontinental telegraph line in 1861 and became the top telegraph company.

  12. Transatlantic cable • In 1866, the transatlantic cable was successfully completed between U.S. and England

  13. How did it impact society? • Helped with westward expansion • Made communication faster • Information and news was spread faster

  14. Problems? • Cost • Communication was limited to stations linked by cables

  15. Bibliography • "Crude Telegraph · 1809." History of Morse Code Crude Telegraph: OurStory.com. Accessed November 25, 2013. http://www.ourstory.com/thread.html?t=522306 • "Destini Incrociati » Blog Archive » Samuel Morse e Alfred Vail." Destini Incrociati RSS. Accessed November 25, 2013. http://www.giacomozito.com/onair/Destini-Incrociati/samuel-morse-e-alfred-vail • "Fun with Morse Code." apfelmus. Accessed November 25, 2013. http://apfelmus.nfshost.com/articles/fun-with-morse-code.html • "History of Innovation." History of Innovation. Accessed November 25, 2013. http://aehistory.wordpress.com/1833/10/08/1833-the-first-electromagnetic-telegraph/g1/ • "NADCOMM Papers and Writings." Telegraph Timeline. Accessed November 25, 2013. http://www.nadcomm.com/timeline.htm • "SEMAPHORE." SEMAPHORE. Accessed November 25, 2013. http://www.athropolis.com/sema.htm • "We are Big Idea Hunters…." Big Think. Accessed November 25, 2013. http://bigthink.com/think-tank/5-big-moments-in-the-history-of-knowledge-transfer • Wikimedia Foundation. "Cooke and Wheatstone telegraph." Wikipedia. Accessed November 25, 2013. http://en.wikipedia.org/wiki/Cooke_and_Wheatstone • Wikimedia Foundation. "Semaphore line." Wikipedia. Accessed November 25, 2013. http://en.wikipedia.org/wiki/Semaphore_line

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