History of the tuning fork.
I: Invention of the tuning fork, its course in music and natural sciences. Pictures from the history of otorhinolaryngology, presented by instruments from the collection of the Ingolstadt German Medical History Museum.
HNO-Klinik, Universitat Munster.
BACKGROUND: G. Cardano, physician, mathematician, and astrologer in Pavia, Italy, in 1550 described how sound may be perceived through the skull. A few years later H. Capivacci, also a physician in Padua, realized that this phenomenon might be used as a diagnostic tool for differentiating between hearing disorders located either in the middle ear or in the acoustic nerve. The German physician G. C. Schelhammer in 1684 was the first to use a common cutlery fork in further developing the experiments initiated by Cardano and Capivacci. For a long time to come, however, there was no demand for this in practical otology.