Steel plow
telegraph
Samuel Morse invented Morse code. This type of telegraphy was created by listening to a series of different clicks and beeps and stood for letters. To create these clicks and beeps they created an electric circuit that opens and closes with the small button you see in the image above.
The first permanent telegraph cable was laid over the Atlantic ocean and made way for easy international communication. then in 1872 J. B. Stearns invented a way to create simultaneous messages across the same wire, and then in 1874 Thomas A. Edison learned a way to create a quadruplex method that allowed a four way simultaneous messaging system. Telegraphy is practically completely obsolete now days being replaced by the phone and internet, but all that was made possible by the inventors and scientists who were able to understand a series of clicks and beeps. exp./ .. .- -- .- ... ... ..- -- .. -. --. -.-. .- ... . -.-- .-- --- ..- .-.. -.. .-. . .- -.. - .... .. ... ... --- .... .- .. .... --- .--. . -.-- --- ..- ..-. . . .-.. ... -- .- .-. - ..- ... .. -. --. --. --- --- --. .-.. . - .-. .- -. ... .-.. .- - . --- .-. ... --- -- . -.-. .-. .- .--. .-.. .. -.- . - .... .- - -.-- --- ..- -. . .-. -.. |
"Telegraph." Columbia Electronic Encyclopedia, 6Th Edition (2013): 1. History Reference Center. Web. 13 Oct. 2014.