There are a lot of different types of telephone that you can buy which range between different styles and looks and greater functionality and stuff. The first telephones were hand cranked and attached to the wall. They had to be cranked to generate the electricity before it could be sent across the phone line by the switchboard. The phone then developed to become slightly more portable but still had to be hand cranked. Hand cranking to generate power became obsolete and the phone became much…
Il telefono, una storia di emigrati e processi - Paperblog
Tra i figli dell'elettricità che vennero disseminati nell'Ottocento come i sovrani assoluti disseminavano di bastardi il loro regno, è anche il telefono con cui la telegrafia acustica ha raggiunto il suo più ambito traguardo:
God and Country in Tennessee
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