Article PDF first page preview
This content is only available via PDF.
© 1955 American Institute of Physics.
American Institute of Physics
Acoustical Society. Physics Today 1 May 1955; 8 (5): 32. https://doi.org/10.1063/1.3062035
Download citation file:
Purchase an annual subscription for $25. A subscription grants you access to all of Physics Today's current and backfile content.