Gage, Alfred P. (Alfred Payson), 1836-1903, Fessenden, C · Toronto : W.J. Gage · leaf 339
tube,and rotate the disk at first very slowly and thenwith gradually increasing rapidity. The breath,as it makes its exit from the tube, cannot escapecontinuously through the holes, but is cut up by,^^ the passing obstructions into a series of puffs, ^^5^ which at first are heard as so many… … The peculiarity of this instrument is that it does not producesound by its own A-ibratious. Every time the air is driventiirough a liole, it produces a pulse of condensation iu the airbeyond; and during the interval between the successive dis-charges, a pulse of rarefaction will be caused by the…
Physics
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