Elementary treatise on physics experimental and applied for the use of colleges and schools (1890)
Ganot, A. (Adolphe), 1804-1887, Atkinson, E. (Edmund) · New York : W. Wood · leaf 233
gases and liquids, and closed by membranes ; the mem-brane at one end was at right angles to the axis of the tube, while the othermade an angle with it. When these tubes were placed in an aperture in thewall between two rooms, a sound produced in front of the tube in one room,that of a tuning-fork… … \/
Physics
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