Abstract
ARCHDEACON PRATT'S explanation in NATURE of May 11 seems to assume that a rigid body moving in contact with a fluid body can never communicate its own rate of motion to the latter as quickly as it would do if this were also a rigid body attached to itself. Supposing the earth to consist of a rigid crust inclosing a fluid interior, and the crust to be moved by the forces producing precession, it would, he says, “slip over the surface of the revolving fluid through a small space proportionate to the push given to the poles. The fluid could not possibly acquire in an instant this new motion, however small it might be, because the fluid is not rigidly connected with the crust.”
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M., A. Thickness of the Earth's Grust. Nature 4, 45 (1871). https://doi.org/10.1038/004045b0
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DOI: https://doi.org/10.1038/004045b0
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