What was hard about inventing the phonogragh?

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  • What was hard about inventing the phonogragh?


The phonograph is a device ... Edison presented his own account of inventing the phonograph. ... The stylus is subject to hard wear as it is ...
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Positive: 87 %
Transcript of The Phonograph and the Gramophone. ... He is also known well for inventing the lightbulb ... which used cylinders that were hard to ...
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Positive: 84 %

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Invention and innovation: An introduction; ... in designing and inventing. ... commercial phonograph using an electric motor and hard wax-coated cylinders ...
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Positive: 87 %
16.4 Thomas Edison Thomas Alva Edison ... Edison’s hard work and imagination brought us the phonograph, ... inventing: machine and carpentry shops, ...
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Positive: 82 %
The phonograph was invented in 1877 by Thomas Edison. [2] [3] [4] [5] ...
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Positive: 68 %
... Home » Sets » Mass Media Midterm (2) ... the phonograph. 3. the hard plastic disc. ... he is credited with inventing the system which added sound to ...
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Positive: 45 %

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