Abstract
THE problem of locating from the surface mineral deposits in the interior of the earth presents numerous difficulties, and has been considered by many investigators who have employed methods based on the physical properties of these bodies, utilising electrical, magnetic, seismic, and density effects. Speaking generally the useful minerals are of either very high or very low density, so that a method dependent upon the difference in density between the mineral and its surroundings would appear to be suitable for the location of such deposits, especially as these effects are noticeable at a considerable distance.
Article PDF
Rights and permissions
About this article
Cite this article
SHAW, H., JONES, E. The Eötvös Torsion Balance and its Use in the Field. Nature 111, 849–851 (1923). https://doi.org/10.1038/111849a0
Issue Date:
DOI: https://doi.org/10.1038/111849a0
This article is cited by
-
Reading Instruments: Objects, Texts and Museums
Science & Education (2013)