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tuning fork
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tuning fork Typical components of an electrically powered watch.
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Young girl wearing a demin jacket playing the trumpet (child, musical instruments, Asian ethnicity)
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tuning fork
tuning fork Tuning fork on a resonator.

tuning fork

mechanical device
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History

tuning fork, narrow, two-pronged steel bar that when tuned to a specific musical pitch retains its tuning almost indefinitely. It was apparently invented by George Frideric Handelā€™s trumpeter John Shore shortly before Shoreā€™s death in 1752.

Because it produces a nearly pure tone (without overtones), it is useful in experimental study of the physics of sound. It has also been used in musical instrumentsā€”e.g., the dulcitone, or typophone, a set of graduated tuning forks struck by felt hammers by means of a keyboard mechanism.

This article was most recently revised and updated by Amy Tikkanen.