Abstract
PROF. BARUS' work is divided into twelve chapters, and occupies an intermediate position between the usual textbook dealing with routine work and the ordinary type of original research which attacks and solves some specific and definite problem. It is throughout of an exploring nature and may be said to investigate the suitability of interferometry as a method for research in various branches of acoustics and gravitation. In the first chapter the open mercury manometer, when read by interference, is discussed. In the second, the interferometer U-tube is used as an absolute electrometer. The third deals with acoustic pressures, the fifth treats of the compression of a sound wave in a pipe, and the sixth with the vibration of a telephone plate. In the eighth and following chapters various gravitational problems are approached. The book is a storehouse of unusual experimental methods and may be consulted with advantage by any one about to commence investigations along the lines indicated.
Displacement Interferometry applied to Acoustics and to Gravitation.
Prof.
Carl
Barus
By. Pp. viii + 149. Publication 310. (Washington: Smithsonian Institution of Washington, 1921.)
Article PDF
Rights and permissions
About this article
Cite this article
Displacement Interferometry applied to Acoustics and to Gravitation . Nature 110, 7 (1922). https://doi.org/10.1038/110007a0
Issue Date:
DOI: https://doi.org/10.1038/110007a0