Sound and Science

Appunn’s “tenor” tonometer

(The following description is from a “Description of Appunn’s Tonnemeters,” by Alexander J. Ellis, F.R.S., &c.; MS in the Western Galleries of the South Kensington Museum,  [...]

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Appunn’s “tenor” tonometer recordings

Recorded at the Acoustics Collection Storage Room, Science Museum Blythe House, London W14, on July 12, 2013, by Dr. Aleksander Kolkowski (Research Associate, Royal College of  [...]

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