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Updated: May 5, 2025
To the back of this he fixed, with a drop of sealing-wax, a little strip of platinum, representing the hammer-bone, which made and broke the metallic circuit of the current as the membrane oscillated under the sounds which impinged against it.
He was led to conceive a similar apparatus by a study of the mechanism of the human ear, which he knew to contain a membrane, or 'drum, vibrating under the waves of sound, and communicating its vibrations through the hammer-bone behind it to the auditory nerve.
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