How Did The First Phone Call Work? -naija Campus Blog Study Hub - Nairaland / General - Nairaland
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| How Did The First Phone Call Work? -naija Campus Blog Study Hub by chikayobi(m): 7:10pm On Sep 27, 2020 |
Alexander Graham Bell’s big breakthrough came on 10 March 1876 when he used what he called a ‘liquid transmitter’. This was a vertical metal cone with a piece of parchment stretched like a drum over its narrow end at the base. ...... view full post here ----[https://www.naijacampusblog.com/2020/09/how-did-first-phone-call-work-study-hub.html] 1 Like
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