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Whistling Sand of Porth Oer, Caernarvonshire

Abstract

WHISTLING beach sand, which emits a squeak when walked on, can be found in several parts of the world. In general, shear stress produces a spontaneous audiofrequency vibration within the body of the sands, and a plausible outline theory has been suggested by Bagnold1 which seems to fit experimental results amassed over a long time.

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References

  1. Bagnold, R. A., Proc. Roy. Soc., A, 295, 219 (1966).

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  2. Ridgway, K., and Rupp, R., J. Pharm. Pharmac., 21, 30 S (1969).

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  3. Heywood, H., J. Imp. Coll. Chem. Eng. Soc., 8, 25 (1954).

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  4. Ridgway, K., and Tarbuck, K. J., Chem. Proc. Eng., 49 (2), 103 (1968).

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  5. Ridgway, K., and Tarbuck, K. J., J. Pharm. Pharmac., 18, 168 S (1966).

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RIDGWAY, K., RUPP, R. Whistling Sand of Porth Oer, Caernarvonshire. Nature 226, 158–159 (1970). https://doi.org/10.1038/226158a0

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