04:189:102 Lecture Notes - Lecture 4: Reginald Fessenden, Wireless Telegraphy, Samuel Morse

• School: Rutgers University
• Department: Communication and Informatio
• Course: 04:189:102
• Professor: THELANDERSSON; BOACHI, HENRY

Document Summary

The history of the invention of radio is a history of: Morse code- a system of dots and dashes assigned to english letters in the alphabet and numbers that represent specific things, sent through electric signals. Limitations= you have to know morse code and what it means, limited expression of emotions (distress, urgency) The electric telegraph would not have been possible without alessandro volta"s invention of the battery. Hans christian oersted demonstrated the connection between electric. Said to have created wireless telegraphy after marconi called father of radio. Achieved amplified sound using the audion tube- couldn"t explain how it worked. Laid claim to inventing wireless telephony- actual first person was. Telegraphy-sending of message long distances be able to transcribe it (morse code) First to transmit the human voice 1906. 1912- the titanic foregrounds the importance of wireless telegraphy and introduces david sarnoff. The radio act of 1912-licensing in order to broadcast.