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Fluid impact craters and hypervelocity - high velocity impact experiments in metals and rocks
H. J. Moore, R.W. MacCormick, D. E. Gault
1963, Open-File Report 63-100
The impact phenomena of hypervelocity and high-velocity projectiles with rock and metal targets are being studied in a cooperative research program conducted by the U.S. Geological Survey and the Ames Research Center of the National Aeronautics and Space Administration. This paper deals with the comparison of: (1) fluid-impact craters produced...
Development of a hand portable rainfall-simulator infiltrometer
I.S. McQueen
1963, Circular 482
Comparisons of relative infiltration of summer thundershowers into undisturbed and treated western dry lands are necessary for guidance of future treatment practices. A system designed for measuring infiltration of simulated rainfall into small plots of undisturbed soil that can be hand-carried to sites inaccessible to vehicles has been developed. Disturbance...