Abstract
As a student of colloidal chemistry I was much interested in the results of the experiments on the clay-water systems by Mr. A. S. E. Ackermann (NATURE, January 6, p. 17), showing that there was a continuous penetration of the systems by a heavy object when its pressure exceeded a certain critical value referred to as the “pressure of fluidity.”
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MARDLES, E. Experiments on Hardness and Penetration. Nature 111, 116 (1923). https://doi.org/10.1038/111116b0
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DOI: https://doi.org/10.1038/111116b0
