Reminder:- On 12 Aug 1977 Thomas Edison invented 'Phonograph', an instrument for reproducing sound.

Implications: Amplification of sound and establishing new path for the sound instrument.
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@CryptoSmart posted 4 years ago

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Thnkyou for sharing

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User's avatar Cristy
4 years ago

Thank you for the information

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User's avatar Cutie_Angel_Mukta
4 years ago

thanks for sharing trivia

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User's avatar Mitch123
4 years ago

*typing correction :-- it is 1877 and not 1977..

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User's avatar CryptoSmart
4 years ago
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