Media, Information and Technoculture 2000F/G Lecture Notes - Lecture 5: Wireless Telegraphy, Reginald Fessenden, Morse Code

• School: Western University
• Department: Media, Information and Technoculture
• Course: Media, Information and Technoculture 2000F/G
• Professor: Daniel Robinson

Document Summary

First instances of radio were bi-directional communication: one to one (exchange of messages) Uni-directional - central transmitter to passive receivers. The idea of broadcasting - one person or company communicating to a vast number of people. Waves disseminating through the air, electrical energy producing messages. These waves move fast at the speed of light. Heinrich hertz was the first to conceptualize a telegraph without wires". Built an apparatus that would transmit electric signals and communicate messages through the atmosphere. Starting experimenting in the 1890s with wireless telegraphy. Interested in the promise of ship to shore communication. Wireless communication enabled the communication of land to ship. First trans-atlantic wireless signal that was sent from st. john"s newfoundland reaching. A telegraph cable went under the atlantic (trans-atlantic signal in 1901) Established the possibility of transmitting messages thousands of km. First commercial service was in cape breton. Canadian recognized as the founder of voice transmission through radio waves.