To the recording studio to study interference and diffraction of sound waves. Unit 6 Segment D: Sound: Diffraction and Interference We head back to the recording studio to study interference and ...

This note completes the development of certain approximations of the integral P(X, T) which was defined in the first paper of this series. The two expansions for small and large X respectively whose ...

IT may be of interest to give a preliminary account of what I believe to be a new method of producing acoustic spectra. The method, which is to employ the striations on “variable-density” sound-film ...

IN a recent letter in NATURE 1, D. Brown described an ingenious and simple method of obtaining acoustic spectra, namely, by using a strip of 'variable-density' sound film as a diffraction grating for ...