Edison Wax Cylinders For Sound Recording

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both photos Norman Bruderhofer

 

The Edison Phonograph used wax cylinders to receive the imprint of a needle vibrating due to sound. They are quite fragile, as can be seen in the video below.

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Unrelated to this post, below is an example of

eclectic science esoterica 

A Large Impulse Generator. Photo darkking3

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