Abstract
STOKES'S formula for the terminal velocity of a sphere descending in a viscous liquid under the action of gravity has been recently tested by Prof. John Zeleny and Mr. L. A. Keehan (“British Association Report,” 1909, p. 407), and they found that the values of the velocity furnished by it were considerably larger than those which they obtained from their experiments. Since Stokes's formula is obtained on the hypothesis of no slipping, it furnishes an inferior limit to the velocity, and consequently the discrepancy between theory and observation cannot be explained on any hypothesis that slipping takes place.
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BASSET, A. The Descent of a Sphere in a Viscous Liquid. Nature 83, 521 (1910). https://doi.org/10.1038/083521a0
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DOI: https://doi.org/10.1038/083521a0
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