A platform for research: civil engineering, architecture and urbanism
Tests indicate radio waves penetrate earth and rock
Tests conducted by the United States Bureau of Mines, Department of Commerce, in a Colorado metal mine indicate strongly that radio waves will penetrate 500 feet or more of rock strata. These preliminary experiments were observed by Dr. A. S. Eve, Director of the Department of Physics, McGill University, Montreal, Canada, who is conducting a study for the Bureau of Mines of the possibilities of various methods of geophysical prospecting for the location of underground mineral deposits.
Tests indicate radio waves penetrate earth and rock
Tests conducted by the United States Bureau of Mines, Department of Commerce, in a Colorado metal mine indicate strongly that radio waves will penetrate 500 feet or more of rock strata. These preliminary experiments were observed by Dr. A. S. Eve, Director of the Department of Physics, McGill University, Montreal, Canada, who is conducting a study for the Bureau of Mines of the possibilities of various methods of geophysical prospecting for the location of underground mineral deposits.
Tests indicate radio waves penetrate earth and rock
Journal of the A.I.E.E. ; 46 ; 1166
1927-11-01
284228 byte
Article (Journal)
Electronic Resource
English
Construction method for soil rock stratum tunnel to penetrate through pipeline leakage area
European Patent Office | 2023
|WHAT CAUSES PILES TO PENETRATE
British Library Conference Proceedings | 1995
|Railfreight needs to penetrate new market
IuD Bahn | 2000
|Railfreight needs to penetrate new markets
British Library Online Contents | 2000
Step-tapered piles penetrate cemented Boulder formation
Engineering Index Backfile | 1934