1. The Telephone Background information:
Carl F. Gauss and Ernst h. Weber’s 1834
Electromagnetic Telegraph

2. Samuel F.B. Morse
Morse Code

3. Alexander Graham Bell discovers the principle of the telephone

4. Thomas Edison’s “electro-motograph”

5. How the telephone works:

6. Bell System Is Installed

7. How cell phones work:

8. Results of the telephone

9. Sources www.schoelles.com

10. Sources (Continued)
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